readme tweak

fix some tooltips in the GUI

See merge request then-try-this/samplebrain!13

README.md

@@ -14,7 +14,7 @@ tweakable parameters until it became slightly out of control.
 
 ![](docs/pics/screenshot.png)
 
-Quick start:
+# How do I use this thing?
 
 1. Load a bunch of short wav files into the brain
 2. Click (re)generate brain
@@ -23,23 +23,17 @@ Quick start:
 5. Press play
 6. Tweak brain
 
-The default block size (3000) is really high to prevent CPU glitches -
+Larger wav files like whole tracks can be used, but take a long time
-500 to 1000 is a better range. Larger wav files like whole tracks can
+to process, after which they can be saved as "brain" files and
-be used, but take a long time to process, after which they can be
+instantly reloaded.
-saved as "brain" files and instantly reloaded.
 
-# [Demo brain session](https://static.thentrythis.org/samplebrain/demo.samplebrain)
+Check the [Manual](docs/manual.md) here for the details on all the
-
+parameters and try out the [demo brain session](https://static.thentrythis.org/samplebrain/demo.samplebrain).
-Load this file using "load session" not "load brain" (sessions contain
+Load the demo using "load session" not "load brain" (sessions contain
 both the target and brain samples). The original samples used to
 create the demo session [can be found here for
 testing](https://static.thentrythis.org/samplebrain/samples/).
 
-# [Manual](docs/manual.md)
-
-Full description of all the parameters and a bit of the thinking
-behind it.
-
 # Download
 
 As this is experimental non-commercial software (only originally
@@ -47,17 +41,24 @@ written to run on a couple of computers!) you will have to bear with
 us as we gradually stabilise things based on your feedback. There
 might currently be problems running it on 64bit Windows.
             
-* **Windows**: [samplebrain_0.18.2_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.2_win.zip)
+* **Windows**: [samplebrain_0.18.4_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.4_win.zip)
-* **Mac (intel/m1)**: [samplebrain_0.18.1_macintel.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.1_macintel.app.zip)
+* **Mac (intel/m1)**: [samplebrain_0.18.4_macintel.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.4_macintel.app.zip)
 
-Thank you to [Nik Gaffney](http://fo.am) for help with the Apple builds
+Changes in 0.18.4: New audio device settings window and updated
+windows build. Better default block size, tool tip tweaks and fixes
+for dark themes by [Claude Heiland-Allen](https://mathr.co.uk/).
+
+For old versions see the [changelog](changelog.md)
     
 Mac note: As this software is not on the apple store, to run the
 binary you need to tell your mac it's ok: Go to System Preferences >
 Security & Privacy > General. At the bottom of the window, select
 "Allow apps to be downloaded from Anywhere".
 
-### Linux
+Thank you to [Nik Gaffney](http://fo.am) for help with the Apple
+builds. 
+        
+# Linux install
 <a href='https://flathub.org/apps/details/org.thentrythis.Samplebrain'><img width='200' alt='Download on Flathub' src='https://flathub.org/assets/badges/flathub-badge-en.png'/></a>
 
 #### Ubuntu
@@ -69,96 +70,13 @@ If you'd like the right font, optionally:
 
     $ sudo apt install ttf-mscorefonts-installer
 
-# Old/broken/spurious binaries
+# [Building from source](building.md)                
-    
-* **Windows**: [samplebrain_0.18.1_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.1_win.zip)
-* **Windows**: [samplebrain_0.18_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18_win.zip)
-* **Mac (intel)**: [samplebrain_0.18_macintel.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18_macintel.zip)
-* **Mac (m1)**: [samplebrain_0.18_m1_v2.dmg](https://static.thentrythis.org/samplebrain/samplebrain_0.18_m1_v2.dmg) 
-                
-# Building from source
-## Linux (Ubuntu)
-Install libraries for the sample engine (use brew on mac, MinGW on win):
-
-    $ sudo apt install libsndfile1-dev portaudio19-dev liblo-dev libfftw3-dev
-
-Install dependencies for the interface:
-
-    $ sudo apt install build-essential qtcreator qt5-default
-
-Build & run it:
-
-    $ mkdir build
-    $ cd build
-    $ qmake ..
-    $ make
-    $ sudo make install
-    $ samplebrain
-
-## Mac
-Install libraries for sample engine:
-
-    $ brew install fftw portaudio liblo libsndfile
-
-Install dependencies for the interface:
-
-    $ brew install qt
-    $ brew link qt
-
-Build & run it:
-
-    $ mkdir build
-    $ cd build
-    $ qmake ..
-    $ make
-
-`samplebrain.app` should then be in the app folder for you to run.
-
-# Mac build additions
-
-To make a mac app bundle:
-
-Run `macdeployqt` which copies all dependencies inside the app.
-
-    $ cd build
-    $ macdeployqt
-
-If the icon is not visible, you might need to copy desktop/samplebrain.icns (the icon) to the Resources directory in the app bundle.
-
-    $ cp ../desktop/samplebrain.icns samplebrain.app/Contents/Resources
-
-Then edit Info.plist to add samplebrain.icns to CFBundleIconFile. Key `CFBundleIconFile` should match:
-
-	<key>CFBundleIconFile</key>
-	<string>samplebrain.icns</string>
-
-You might also need to resign the app bundle after making any changes
-
-    $ codesign --force --deep --sign - samplebrain.app
-
-## What's here
-
-1. brain:
-    * samplebrain engine code
-2. app:
-    * code to build the Qt GUI app
-3. gui:
-    * qt designer project files
-4. desktop:
-    * various icon files etc
-4. cooking:
-    * some sketches and ideas
-    * proof of concept written in python
-    * brief initial (abandoned) attempt at clojure version
 
 MFCC algo courtesy of the Aquila library by Zbigniew Siciarz MIT/X11
-licence 2007-2014 (see brain/src/aquila/LICENCE)
+licence 2007-2014 (see brain/src/aquila/LICENCE). This program is free
-
+software licenced under GNU General Public License version 2 (see
-This program is free software licenced under GNU General Public
+LICENCE). Written by [Dave Griffiths at Then Try This](http://thentrythis.org).
-License version 2 (see LICENCE).
-
-Written by [Dave Griffiths at Then Try This](http://thentrythis.org).
 
 ## Links
 
-To find related tech like [CataRT](http://imtr.ircam.fr/imtr/CataRT), [bbcut2](https://composerprogrammer.com/bbcut2.html), [eargram](https://sites.google.com/site/eargram/) and [sCrAmBlEd?HaCkZ!](https://www.youtube.com/watch?v=eRlhKaxcKpA) search up [granular synthesis](http://granularsynthesis.com/guide.php), [concatenative synthesis](https://hal.archives-ouvertes.fr/hal-01161337), [neural audio synthesis](https://github.com/acids-ircam/RAVE), [sinewave speech](http://www.lifesci.sussex.ac.uk/home/Chris_Darwin/SWS/), automated breakbeat cutting, audio mosaicing and plunderphonics/plundermatics.
+To find related tech like [CataRT](https://ircam-ismm.github.io/max-msp/catart.html), [bbcut2](https://composerprogrammer.com/bbcut2.html), [eargram](https://sites.google.com/site/eargram/) and [sCrAmBlEd?HaCkZ!](https://www.youtube.com/watch?v=eRlhKaxcKpA) search up [granular synthesis](http://granularsynthesis.com/guide.php), [concatenative synthesis](https://hal.archives-ouvertes.fr/hal-01161337), [neural audio synthesis](https://github.com/acids-ircam/RAVE), [sinewave speech](http://www.lifesci.sussex.ac.uk/home/Chris_Darwin/SWS/), automated breakbeat cutting, audio mosaicing and plunderphonics/plundermatics.

app/MainWindow.cpp

@@ -14,6 +14,9 @@
 // along with this program; if not, write to the Free Software
 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
+#ifndef MAIN_WINDOW
+#define MAIN_WINDOW
+
 #include <QtGui>
 #include <iostream>
 #include <list>
@@ -46,6 +49,8 @@ MainWindow::MainWindow() :
   m_Ui.brain_contents->setSpacing(0);
   m_Ui.brain_contents->setContentsMargins(0,0,0,0);
 
+  m_settings_dialog = new SettingsDialog(this);
+
     // add default local dest
     // turn on first one
 
@@ -183,3 +188,5 @@ void MainWindow::init_from_session(const string &filename) {
 
 
 }
+
+#endif

app/MainWindow.h

@@ -19,6 +19,7 @@
 #include <QFileDialog>
 #include <QLineEdit>
 #include "ui_samplebrain.h"
+#include "SettingsDialog.h"
 
 #include <iostream>
 #include <lo/lo.h>
@@ -26,6 +27,7 @@
 #include <list>
 #include "feedback.h"
 #include "sound_items.h"
+#include "audio_thread.h"
 
 using namespace std;
 using namespace spiralcore;
@@ -37,6 +39,64 @@ class MainWindow : public QMainWindow
 public:
     MainWindow();
 
+  // all this to work around liblo's use of varargs...
+  void send_audio_osc(const char *name, const char *types) {
+    for (auto dest:m_destinations) {
+      if (dest.m_enabled) {
+        lo_send(dest.m_audio_address,name,types);
+      }
+    }
+  }
+
+  template <class T>
+  void send_audio_osc(const char *name, const char *types, T val) {
+    for (auto dest:m_destinations) {
+      if (dest.m_enabled) {
+        lo_send(dest.m_audio_address,name,types,val);
+      }
+    }
+  }
+
+  void send_process_osc(const char *name, const char *types) {
+    for (auto dest:m_destinations) {
+      if (dest.m_enabled) {
+        lo_send(dest.m_process_address,name,types);
+      }
+    }
+  }
+
+  template <class T>
+  void send_process_osc(const char *name, const char *types, T val) {
+    for (auto dest:m_destinations) {
+      if (dest.m_enabled) {
+        lo_send(dest.m_process_address,name,types,val);
+      }
+    }
+  }
+
+  void set_audio_thread(audio_thread *at) {
+    m_audio_thread=at;
+    m_audio_thread->start_audio();
+
+    for (auto &d:m_audio_thread->m_audio_device->m_client.m_devices) {
+      if (d.id==0) {
+        m_settings_dialog->m_Ui.deviceComboBox->clear();
+      } 
+      m_settings_dialog->m_Ui.deviceComboBox->addItem(d.name.c_str());
+      
+      if (d.default_output==1) {
+        m_settings_dialog->m_device=d.name;
+        m_settings_dialog->m_Ui.deviceComboBox->setCurrentText(d.name.c_str());
+      }
+      
+    }
+    
+    m_settings_dialog->m_Ui.messagesLabel->setText(m_audio_thread->m_audio_device->m_client.m_status.c_str());
+  }
+
+  audio_thread *get_audio_thread() {
+    return m_audio_thread;
+  }
   
 protected:
 
@@ -310,7 +370,7 @@ private slots:
     }
 
     void update_status() {
-      m_feedback.poll(m_Ui.statusbar,&m_sound_items);
+      m_feedback.poll(m_Ui.statusbar,&m_sound_items,m_settings_dialog);
     }
 
     void stereo_mode(bool s) {
@@ -336,6 +396,9 @@ private slots:
 
     }
 
+  void settings() {        
+    m_settings_dialog->show();
+  }
   
 private:
 
@@ -362,41 +425,6 @@ private:
 
     vector<osc_destination> m_destinations;
 
-    // all this to work around liblo's use of varargs...
-    void send_audio_osc(const char *name, const char *types) {
-      for (auto dest:m_destinations) {
-        if (dest.m_enabled) {
-          lo_send(dest.m_audio_address,name,types);
-        }
-      }
-    }
-
-    template <class T>
-    void send_audio_osc(const char *name, const char *types, T val) {
-      for (auto dest:m_destinations) {
-        if (dest.m_enabled) {
-          lo_send(dest.m_audio_address,name,types,val);
-        }
-      }
-    }
-
-    void send_process_osc(const char *name, const char *types) {
-      for (auto dest:m_destinations) {
-        if (dest.m_enabled) {
-          lo_send(dest.m_process_address,name,types);
-        }
-      }
-    }
-
-    template <class T>
-    void send_process_osc(const char *name, const char *types, T val) {
-      for (auto dest:m_destinations) {
-        if (dest.m_enabled) {
-          lo_send(dest.m_process_address,name,types,val);
-        }
-      }
-    }
-
 
     void init_from_session(const string &filename);
     void add_gui_address(osc_destination &dest,
@@ -411,5 +439,7 @@ private:
     QSignalMapper* m_sound_item_delete_mapper;
     sound_items m_sound_items;
 
+    SettingsDialog *m_settings_dialog;
+  audio_thread *m_audio_thread;
 
 };

app/SettingsDialog.cpp

@@ -0,0 +1,39 @@
+// Copyright (C) 2022 Then Try This
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#include <QtGui>
+#include <iostream>
+#include <list>
+
+#include "MainWindow.h"
+#include "SettingsDialog.h"
+#include "feedback.h"
+
+using namespace std;
+
+SettingsDialog::SettingsDialog(MainWindow *parent):
+  m_device(""),
+  m_parent(parent),
+  m_buffersize(2048),
+  m_samplerate(44100) {
+  m_Ui.setupUi(this);
+}
+
+void SettingsDialog::connect() {
+  audio_thread *at = m_parent->get_audio_thread();
+  at->restart_audio(m_device,m_samplerate,m_buffersize);
+  m_Ui.messagesLabel->setText(at->m_audio_device->m_client.m_status.c_str());
+}

app/SettingsDialog.h

@@ -0,0 +1,75 @@
+// Copyright (C) 2022 Then Try This
+//
+// This program is free software; you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation; either version 2 of the License, or
+// (at your option) any later version.
+//
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with this program; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+
+#ifndef SETTINGS_DIALOG
+#define SETTINGS_DIALOG
+
+#include <QtGui>
+#include <QDialog>
+#include <QLineEdit>
+#include "ui_settings.h"
+
+#include <iostream>
+#include <lo/lo.h>
+#include <string>
+#include <list>
+
+using namespace std;
+
+
+class MainWindow;
+
+class SettingsDialog : public QDialog
+{
+  Q_OBJECT
+ public:
+  SettingsDialog(MainWindow *parent);
+
+  Ui_SettingsDialog m_Ui;
+  string m_device;
+
+ protected:
+
+  private slots:
+
+   void samplerate(QString str) {
+     try { m_samplerate=stoi(str.toStdString()); }
+     catch(std::exception const & e) {
+       m_samplerate=44100;
+     }
+   }
+   void output_device(QString v) { m_device=v.toStdString();  }
+   void buffersize(QString str) {
+     try { m_buffersize=stoi(str.toStdString()); }
+     catch(std::exception const & e) {
+       m_buffersize=44100;
+     }
+   }
+   void accept() { connect(); hide(); }
+   void reject() { hide(); }
+   void apply() { connect(); }
+  
+ private:
+
+   void connect();
+   MainWindow *m_parent;
+
+   unsigned int m_buffersize;
+   unsigned int m_samplerate;
+  
+};
+
+#endif

app/audio_thread.cpp

@@ -26,15 +26,20 @@ audio_thread::audio_thread(process_thread &p) :
   m_process_thread(p),
   m_brain_mutex(p.m_brain_mutex),
   m_stereo_mode(false),
-  m_mic_mode(false)
+  m_mic_mode(false),
+  m_bufsize(2048),
+  m_samplerate(44100),
+  m_device("")
 {
-  start_audio();
+  //  start_audio();
   pthread_mutex_lock(m_brain_mutex);
   m_left_renderer = new renderer(p.m_source,p.m_left_target);
   m_right_renderer = new renderer(p.m_source,p.m_right_target);
   m_block_stream = new block_stream();
   pthread_mutex_unlock(m_brain_mutex);
   m_osc.run();
+  // it this threadsafe? 
+  //  m_audio_device->report_devices();
 }
 
 static bool state = 1;
@@ -48,11 +53,21 @@ audio_thread::~audio_thread() {
 
 void audio_thread::start_audio() {
   if (m_audio_device!=NULL) delete m_audio_device;
-  m_audio_device = new audio_device("samplebrain",48000,2048);
+  m_audio_device = new audio_device("samplebrain",m_samplerate,m_bufsize);
-  //m_audio_device = new audio_device("samplebrain",48000,2048*4);
   m_audio_device->m_client.set_callback(run_audio, this);
 }
 
+void audio_thread::restart_audio(const string device, unsigned int samplerate, unsigned int bufsize) {
+  m_samplerate = samplerate;
+  m_bufsize = bufsize;
+  m_device = device;      
+  m_audio_device->connect(m_device,
+                          "samplebrain",
+                          m_samplerate,
+                          m_bufsize);
+}
+    
+
 void audio_thread::run_audio(void* c, unsigned int frames) {
   if (state) {
     audio_thread *at = (audio_thread*)c;

app/audio_thread.h

@@ -29,6 +29,9 @@ public:
     audio_thread(process_thread &p);
     ~audio_thread();
 
+    void start_audio();
+    void restart_audio(const string device, unsigned int samplerate, unsigned int bufsize);
+
     void process(sample &left_in, sample &right_in, sample &left_out, sample &right_out);
 
     static void run_audio(void* c, unsigned int frames);
@@ -39,13 +42,15 @@ public:
     block_stream *m_block_stream;
 
   private:
-    void start_audio();
 
 	OSC_server m_osc;
     process_thread &m_process_thread;
     pthread_mutex_t* m_brain_mutex;
     bool m_stereo_mode;
     bool m_mic_mode;
+    u32 m_bufsize;
+    u32 m_samplerate;
+    string m_device;
   };
 
 }

app/feedback.cpp

@@ -16,6 +16,7 @@
 
 #include "feedback.h"
 #include "sound_items.h"
+#include "SettingsDialog.h"
 #include <iostream>
 
 using namespace spiralcore;
@@ -28,7 +29,7 @@ feedback::feedback(string address) :
 }
 
 
-void feedback::poll(QStatusBar *s, sound_items *sound_items) {
+void feedback::poll(QStatusBar *s, sound_items *sound_items, SettingsDialog *settings) {
     command_ring_buffer::command cmd;
 
     while (m_osc.get(cmd)) {

app/feedback.h

@@ -17,6 +17,7 @@
 #include <string>
 #include <QtGui>
 #include <QStatusBar>
+#include "SettingsDialog.h"
 #include "spiralcore/OSC_server.h"
 
 #pragma once
@@ -27,7 +28,7 @@ class sound_items;
 class feedback {
 public:
   feedback(std::string address);
-    void poll(QStatusBar *s, sound_items *sound_items);
+  void poll(QStatusBar *s, sound_items *sound_items, SettingsDialog *settings);
 
 private:
 

app/process_thread.cpp

@@ -34,9 +34,9 @@ static void* _process(void *c) {
 
 process_thread::process_thread() :
   m_osc("8889"),
-  m_source_block_size(3000),
+  m_source_block_size(1000),
   m_source_overlap(0.75),
-  m_target_block_size(3000),
+  m_target_block_size(1000),
   m_target_overlap(0.75),
   m_window_type(window::DODGY),
   m_target_window_type(window::DODGY)
@@ -181,9 +181,6 @@ void process_thread::load_session(const std::string &filename) {
   ifs||m_source_block_size||m_source_overlap;
   ifs||m_target_block_size||m_target_overlap;
   ifs||m_window_type||m_target_window_type;
-
-  cerr<<"loading window type session "<<m_target_window_type<<endl;
-
   ifs||m_source;
   ifs||m_left_target;
   ifs||m_right_target;
@@ -200,9 +197,6 @@ void process_thread::save_session(const std::string &filename) {
   ofs||(*m_right_renderer);
   ofs||m_source_block_size||m_source_overlap;
   ofs||m_target_block_size||m_target_overlap;
-
-  cerr<<"saving window type session "<<m_target_window_type<<endl;
-
   ofs||m_window_type||m_target_window_type;
   ofs||m_source;
   ofs||m_left_target;

app/qtmain.cpp

@@ -30,12 +30,11 @@ int main( int argc , char *argv[] ){
     QApplication app(argc, argv);
     MainWindow mainWin;
     mainWin.show();
-
-    cerr<<"Qt version: "<<qVersion()<<endl;
-
     process_thread pt;
     audio_thread at(pt);
     pt.register_renderer(at.m_left_renderer, at.m_right_renderer, at.m_block_stream);
 
+    mainWin.set_audio_thread(&at);
+
     return app.exec();
 }

app/samplebrain.qrc

@@ -1,5 +1,6 @@
 <RCC>
   <qresource prefix="images">
+    <file>images/settings.png</file>
     <file>images/at.png</file>
     <file>images/pause.png</file>
     <file>images/play.png</file>

app/sound_items.cpp

@@ -33,7 +33,7 @@ sound_items::sound_item &sound_items::add(QVBoxLayout *container, const string &
   sound_item si;
   si.m_filename = name;
   si.m_id = m_current_sound_id++;
-  QString style("background-color:lightgrey;");
+  QString style("color:black;background-color:lightgrey;");
 
   si.m_container = new QHBoxLayout();
   si.m_container->setSpacing(10);
@@ -89,8 +89,8 @@ void sound_items::clear() {
 void sound_items::recolour() {
   u32 c=0;
   for (auto &si:m_sound_items) {
-    QString style("background-color:lightblue;");
+    QString style("color:black;background-color:lightblue;");
-    if (c%2==0) style="background-color:pink;";
+    if (c%2==0) style="color:black;background-color:pink;";
     si.m_enable->setStyleSheet(style);
     si.m_del->setStyleSheet(style);
     si.m_label->setStyleSheet(style);
@@ -101,7 +101,7 @@ void sound_items::recolour() {
 void sound_items::change_colour(const std::string &name, const std::string &colour) {
   for (auto &si:m_sound_items) {
     if (si.m_filename==name) {
-      QString style("background-color:"+QString::fromStdString(colour)+";");
+      QString style("color:black;background-color:"+QString::fromStdString(colour)+";");
       si.m_enable->setStyleSheet(style);
       si.m_del->setStyleSheet(style);
       si.m_label->setStyleSheet(style);

brain/src/block.cpp

@@ -77,7 +77,7 @@ block::block(u64 id, const string &filename, const sample &pcm, u32 rate, const
   m_orig_filename(filename),
   m_usage(0)
 {
-  init_fft(m_pcm.get_length());
+  init_fft(m_pcm.get_length(),rate);
   assert(m_mfcc_proc!=NULL);
   assert(m_fftw!=NULL);
 
@@ -97,12 +97,12 @@ block::block(u64 id, const string &filename, const sample &pcm, u32 rate, const
 }
 
 
-void block::init_fft(u32 block_size) {
+void block::init_fft(u32 block_size, u32 rate) {
   if (m_fftw == NULL || m_fftw->m_length!=block_size) {
     if (m_fftw == NULL) delete m_fftw;
-    m_fftw = new FFT(block_size,100);
+    m_fftw = new FFT(block_size,rate,100);
     if (m_mfcc_proc == NULL) delete m_mfcc_proc;
-    m_mfcc_proc = new Aquila::Mfcc(block_size);
+    m_mfcc_proc = new Aquila::Mfcc(block_size,rate);
   }
 }
 

brain/src/block.h

@@ -38,7 +38,7 @@ namespace spiralcore {
     // returns distance based on ratio of fft-mfcc values
     double compare(const block &other, const search_params &params) const;
 
-    static void init_fft(u32 block_size);
+    static void init_fft(u32 block_size, u32 rate);
     static bool unit_test();
 
     const sample &get_pcm() const { return m_pcm; }

brain/src/brain.cpp

@@ -377,34 +377,6 @@ void brain::deplete_usage() {
   }
 }
 
-
-// take another brain and rebuild this brain from bits of that one
-// (presumably this one is made from a single sample)
-/*void brain::resynth(const string &filename, const brain &other, const search_params &params){
-  sample out((m_block_size-m_overlap)*m_blocks.size());
-  out.zero();
-  u32 pos = 0;
-  u32 count = 0;
-  cerr<<other.m_blocks.size()<<" brain blocks..."<<endl;
-  cerr<<endl;
-  for (vector<block>::iterator i=m_blocks.begin(); i!=m_blocks.end(); ++i) {
-  cerr<<'\r';
-  cerr<<"searching: "<<count/float(m_blocks.size())*100;
-  u32 index = other.search(*i, params);
-  //cerr<<index<<endl;
-  out.mul_mix(other.get_block_pcm(index),pos,0.2);
-
-  if (count%1000==0) {
-  audio_device::save_sample(filename,out);
-  }
-
-  ++count;
-  pos += (m_block_size-m_overlap);
-  }
-  audio_device::save_sample(filename,out);
-  }
-*/
-
 ios &spiralcore::operator||(ios &s, brain::sound &b) {
   u32 version=1;
   string id("brain::sound");

brain/src/fft.cpp

@@ -24,8 +24,9 @@ using namespace std;
 
 static const int MAX_FFT_LENGTH = 4096;
 
-FFT::FFT(u32 length, u32 bins) :
+FFT::FFT(u32 length, u32 rate, u32 bins) :
   m_length(length),
+  m_rate(rate),
   m_num_bins(bins),
   m_in(new double[length]),
   m_spectrum(new fftw_complex[length]),
@@ -35,26 +36,19 @@ FFT::FFT(u32 length, u32 bins) :
   m_plan = fftw_plan_dft_r2c_1d(m_length, m_in, m_spectrum, FFTW_ESTIMATE);
 }
 
-FFT::~FFT()
+FFT::~FFT() {
-{
   delete[] m_in;
   fftw_destroy_plan(m_plan);
 }
 
-void FFT::impulse2freq(const float *imp)
+void FFT::impulse2freq(const float *imp) {
-{
   unsigned int i;
-
+  for (i=0; i<m_length; i++) {
-  for (i=0; i<m_length; i++)
-    {
     m_in[i] = imp[i];
   }
-
   fftw_execute(m_plan);
 }
 
-static const float SRATE = 44100;
-
 float FFT::calculate_dominant_freq() {
   double highest = 0;
   u32 index = 0;
@@ -65,7 +59,7 @@ float FFT::calculate_dominant_freq() {
       highest=t;
     }
   }
-  float freq = index * (SRATE/(float)m_length);
+  float freq = index * (m_rate/(float)m_length);
   if (freq<0.01) freq=0.01;
   return freq;
 }

brain/src/fft.h

@@ -27,7 +27,7 @@ namespace spiralcore {
   class FFT
   {
   public:
-    FFT(u32 length, u32 num_bins);
+    FFT(u32 length, u32 rate, u32 num_bins);
     ~FFT();
 	void impulse2freq(const float *imp);
     void calculate_bins();
@@ -35,6 +35,7 @@ namespace spiralcore {
 
 	fftw_plan m_plan;
 	u32 m_length;
+    u32 m_rate;
     u32 m_num_bins;
 	double *m_in;
 	fftw_complex *m_spectrum;

brain/src/mfcc.cpp

@@ -26,7 +26,7 @@ namespace Aquila
     {
         //auto spectrum = m_fft->fft(source);
 
-        Aquila::MelFilterBank bank(44100, m_inputSize);
+        Aquila::MelFilterBank bank(m_sampleRate, m_inputSize);
         auto filterOutput = bank.applyAll(spectrum);
 
         Aquila::Dct dct;

brain/src/mfcc.h

@@ -59,8 +59,9 @@ namespace Aquila
          *
          * @param inputSize input length (common to all inputs)
          */
-        Mfcc(std::size_t inputSize):
+        Mfcc(std::size_t inputSize, unsigned int sampleRate):
-        m_inputSize(inputSize)//, m_fft(FftFactory::getFft(inputSize))
+        m_inputSize(inputSize), // m_fft(FftFactory::getFft(inputSize))
+        m_sampleRate(sampleRate)
         {
         }
 
@@ -71,6 +72,7 @@ namespace Aquila
          * Number of samples in each processed input.
          */
         const std::size_t m_inputSize;
+        const unsigned int m_sampleRate;
         
         /**
          * FFT calculator.

brain/src/spiralcore/audio.cpp

@@ -22,13 +22,23 @@ using namespace std;
 using namespace spiralcore;
 
 audio_device::audio_device(const string &clientname, u32 samplerate, u32 buffer_size) :
-    left_out(buffer_size),
-    right_out(buffer_size),
-    left_in(buffer_size),
-    right_in(buffer_size),
     m_recording(false),
-    m_record_filename("")
+    m_record_filename(""),
-{
+    m_samplerate(samplerate) {
+  // connect to default device
+  m_client.init();
+  connect("", clientname, samplerate, buffer_size);
+}
+
+void audio_device::connect(const string &output_device_name, const string &clientname, u32 samplerate, u32 buffer_size) {
+  m_client.detach();
+  
+  left_out.allocate(buffer_size);
+  right_out.allocate(buffer_size);
+  left_in.allocate(buffer_size);
+  right_in.allocate(buffer_size);
+  m_samplerate = samplerate;
+
   portaudio_client::device_options opt;
   opt.buffer_size = buffer_size;
   opt.num_buffers = 2;
@@ -38,15 +48,14 @@ audio_device::audio_device(const string &clientname, u32 samplerate, u32 buffer_
 
   m_client.set_outputs(left_out.get_buffer(), right_out.get_buffer());
   m_client.set_inputs(left_in.get_non_const_buffer(), right_in.get_non_const_buffer());
-    m_client.attach(clientname,opt);
+  m_client.attach(output_device_name,clientname,opt);
-
 }
 
 void audio_device::save_sample(const string &filename, const sample s) {
     SF_INFO sfinfo;
     sfinfo.format=SF_FORMAT_WAV | SF_FORMAT_FLOAT;
     sfinfo.frames=s.get_length();
-    sfinfo.samplerate=44100;
+    sfinfo.samplerate=m_samplerate;
     sfinfo.channels=1;
     sfinfo.sections=1;
     sfinfo.seekable=0;
@@ -82,5 +91,4 @@ void audio_device::maybe_record() {
     }
 }
 
-void audio_device::start_graph(graph *graph) {
+
-}

brain/src/spiralcore/audio.h

@@ -28,7 +28,7 @@ class audio_device {
   public:
     audio_device(const string &clientname, u32 samplerate, u32 buffer_size);
 
-    void start_graph(graph *graph);
+    void connect(const string &output_device, const string &clientname, u32 samplerate, u32 buffer_size);
 
     void start_recording(std::string filename);
     void stop_recording();
@@ -42,7 +42,7 @@ public:
     
     portaudio_client m_client;
 
-    static void save_sample(const std::string &filename, const sample s);
+    void save_sample(const std::string &filename, const sample s);
 
   private:
     bool m_recording;
@@ -50,7 +50,7 @@ private:
     sample m_record_buffer_left;
     sample m_record_buffer_right;
     u32 m_record_counter;
-
+    u32 m_samplerate;
   };
 
 }

brain/src/spiralcore/portaudio_client.cpp

@@ -19,15 +19,16 @@
 
 #include "portaudio_client.h"
 
-bool              portaudio_client::m_attached   = false;
 long unsigned int portaudio_client::m_buffer_size = 0;
-long unsigned int portaudio_client::m_sample_rate = 44100;
+bool              portaudio_client::m_initialised = false;
+int               portaudio_client::m_attached_device = -1;
 void            (*portaudio_client::run_callback)(void*, unsigned int buf_size)=NULL;
 void             *portaudio_client::run_context   = NULL;
 const float *portaudio_client::m_right_data=NULL;
 const float *portaudio_client::m_left_data=NULL;
 float *portaudio_client::m_right_in_data=NULL;
 float *portaudio_client::m_left_in_data=NULL;
+PaStream *portaudio_client::m_stream=NULL;
 
 ///////////////////////////////////////////////////////
 
@@ -40,55 +41,103 @@ portaudio_client::~portaudio_client() {
   detach();  
 }
 
-/////////////////////////////////////////////////////////////////////////////////////////////
+bool portaudio_client::init() {
-
+  m_initialised=false;
-bool portaudio_client::attach(const string &client_name, const device_options &dopt) {
+  if (!m_initialised) {
-  if (m_attached) return true;
-
     PaError err;
     err = Pa_Initialize();
     if( err != paNoError ) {      
-    cerr<<"could not init portaudio_client"<<endl;
       Pa_Terminate();
-    fprintf( stderr, "an error occured while using the portaudio stream\n" );
+      m_status="error initialising portaudio: "+string(Pa_GetErrorText(err))+"\n";
-    fprintf( stderr, "error number: %d\n", err );
+      return false;
-    fprintf( stderr, "error message: %s\n", Pa_GetErrorText( err ) );
     }
 
-  PaDeviceIndex output_device_num = Pa_GetDefaultOutputDevice(); 
+    // load all the devices we have
-  PaDeviceIndex input_device_num = Pa_GetDefaultInputDevice(); 
+    PaDeviceIndex default_output_num = Pa_GetDefaultOutputDevice(); 
+    PaDeviceIndex default_input_num = Pa_GetDefaultInputDevice(); 
+
+    m_devices.clear();
+    // get all devices we have available
+    int numDevices = Pa_GetDeviceCount();
+    if(numDevices <= 0) {
+      m_status="portaudio error: no audio devices found";
+      return false;
+    } 
+
+    const PaDeviceInfo *deviceInfo;
+
+    for(int i=0; i<numDevices; i++) {
+      deviceInfo = Pa_GetDeviceInfo(i);
+      if (deviceInfo->maxOutputChannels>=2) {
+        device_desc desc;
+        desc.name = deviceInfo->name;
+        desc.id = i;
+        desc.default_input = i==default_input_num; 
+        desc.default_output = i==default_output_num; 
+        m_devices.push_back(desc);
+      }
+    }
+    
+    m_initialised=true;
+    return true;
+  }
+  return true;
+}
+
+int portaudio_client::device_name_to_id(const string &name) {
+  for (auto &d:m_devices) {
+    if (d.name==name) return d.id;
+  }
+  return -1;
+}
+
+/////////////////////////////////////////////////////////////////////////////////////////////
+
+bool portaudio_client::attach(const string &requested_output_device, const string &client_name, const device_options &dopt) {
+  if (!init()) return false;  
+  detach();
+
+  int requested_output_id = device_name_to_id(requested_output_device);
   
   PaStreamParameters output_parameters;
-  output_parameters.device = output_device_num;
+  if (requested_output_device=="" || requested_output_id==-1) {
-  if (output_parameters.device == paNoDevice) {
+    // start up by connecting to the default one
-    cerr<<"error: no default output device."<<endl;
+    PaDeviceIndex default_output_num = Pa_GetDefaultOutputDevice(); 
+    if (default_output_num == paNoDevice) {
+      m_status="error: no default output device.";
+      return false;
     } else {
+      output_parameters.device = default_output_num;
+    }
+  } else {
+      output_parameters.device = requested_output_id;
+  }
+
   output_parameters.channelCount = 2;       /* stereo output */
   output_parameters.sampleFormat = paFloat32; /* 32 bit floating point output */
   output_parameters.suggestedLatency = Pa_GetDeviceInfo( output_parameters.device )->defaultLowOutputLatency;
   output_parameters.hostApiSpecificStreamInfo = NULL;
-    cerr<<"Connecting to "<<Pa_GetDeviceInfo( output_parameters.device )->name<<" for output"<<endl;
+  m_status="connecting to "+string(Pa_GetDeviceInfo(output_parameters.device)->name)+" for output\n";
-  }
 
+  // turn off input for the moment, it's causing
+  // too many cross platform security issues
 
-  PaStreamParameters input_parameters;
+  /*PaStreamParameters input_parameters;
   PaStreamParameters *input_p=&input_parameters;
   input_parameters.device = input_device_num;
   if (true || input_parameters.device == paNoDevice) {
     cerr<<"error: no default input device."<<endl;
     input_p=0;
   } else {
-     input_parameters.channelCount = 2;       /* stereo output */
+     input_parameters.channelCount = 2;    
-     input_parameters.sampleFormat = paFloat32; /* 32 bit floating point output */
+     input_parameters.sampleFormat = paFloat32;
      input_parameters.suggestedLatency = Pa_GetDeviceInfo( input_parameters.device )->defaultLowInputLatency;
      input_parameters.hostApiSpecificStreamInfo = NULL;
      cerr<<"Connecting to "<<Pa_GetDeviceInfo( input_parameters.device )->name<<" for input"<<endl;
-  }		  
+  }	*/	  
 
-  PaStream *stream;
+  PaError err = Pa_OpenStream(&m_stream,
-
+		      NULL,
-  err = Pa_OpenStream(&stream,
-		      input_p,
 		      &output_parameters,
 		      dopt.samplerate,
 		      dopt.buffer_size,
@@ -96,31 +145,38 @@ bool portaudio_client::attach(const string &client_name, const device_options &d
 		      process,
 		      NULL);
 
+  m_attached_device=output_parameters.device;
+
   if(err != paNoError) {
-    cerr<<"could not attach portaudio_client: "<<Pa_GetErrorText( err )<<endl;
+    m_status+="could not attach: "+string(Pa_GetErrorText(err))+"\n";
-    Pa_Terminate();
+    detach();
     return false;
   }
 
-  err = Pa_StartStream(stream);
+  err = Pa_StartStream(m_stream);
 
   if(err != paNoError) {
-    cerr<<"could not start stream: "<<Pa_GetErrorText( err )<<endl;
+    m_status+="could not start stream: "+string(Pa_GetErrorText(err))+"\n";
-    Pa_Terminate();
+    detach();
     return false;
   }
 
-  m_attached=true;
+  m_status+="we are connected to portaudio!\n";
-  cerr<<"connected to portaudio..."<<endl;
   return true;
 }
 
 /////////////////////////////////////////////////////////////////////////////////////////////
 
 void portaudio_client::detach() {
-  cerr<<"detaching from portaudio"<<endl;
+  if (m_attached_device!=-1) {
+    if (m_stream!=NULL) {
+      Pa_CloseStream(m_stream);
+    }
+    m_stream=NULL;    
+    m_status+="detaching from portaudio\n";
     Pa_Terminate();
-  m_attached=false;
+    m_attached_device=-1;
+  }
 }
 
 /////////////////////////////////////////////////////////////////////////////////////////////

brain/src/spiralcore/portaudio_client.h

@@ -30,9 +30,9 @@ class portaudio_client
  public:
   portaudio_client();
   ~portaudio_client();
+  bool init();
 
-  class device_options
+  class device_options {
-  {
   public:
     enum type {READ,WRITE,READWRITE};
     unsigned int buffer_size;
@@ -42,13 +42,25 @@ class portaudio_client
     unsigned int out_channels;
   };
 
-  bool   attach(const string &client_name, const device_options &dopt);
+  class device_desc {
+  public:
+    string name;
+    int id;
+    bool default_input;
+    bool default_output;
+  };
+
+  vector<portaudio_client::device_desc> m_devices;
+
+  bool   attach(const string &requested_output_device, const string &client_name, const device_options &dopt);
   void   detach();
-  bool   is_attached()                   { return m_attached; }
+  bool   is_attached()  { return m_attached_device!=-1; }
   void   set_callback(void(*run)(void*, unsigned int),void *context) { run_callback=run; run_context=context; }
   void   set_outputs(const float *l, const float *r) { m_left_data=l; m_right_data=r; }
   void   set_inputs(float *l, float *r) { m_left_in_data=l; m_right_in_data=r; }
 
+  string m_status;
+  
  protected:
 
   static int  process(const void *input_buffer, void *output_buffer,
@@ -59,9 +71,11 @@ class portaudio_client
 
  private:
 
+  int device_name_to_id(const string &name);
+  
   static long unsigned int  m_buffer_size;
-  static long unsigned int  m_sample_rate;
+  static bool               m_initialised;
-  static bool               m_attached;
+  static int                m_attached_device;
   
   static const float *m_right_data;
   static const float *m_left_data;
@@ -70,6 +84,8 @@ class portaudio_client
   
   static void(*run_callback)(void *, unsigned int);
   static void *run_context;
+  static PaStream *m_stream;
+
 };
 
 #endif

brain/src/status.h

@@ -28,6 +28,8 @@ public:
   static void update(const char *msg, ...);
   static void sound_item(const std::string &name, const std::string &colour);
   static void sound_item_refresh();
+  static void add_audio_device(int id, const std::string &name, bool default_output);
+  static void audio_device_status(const std::string &status);
   static lo_address m_address;
 };
 

building.md

@@ -0,0 +1,59 @@
+# Building from source
+## Linux (Ubuntu)
+Install libraries for the sample engine (use brew on mac, MinGW on win):
+
+    $ sudo apt install libsndfile1-dev portaudio19-dev liblo-dev libfftw3-dev
+
+Install dependencies for the interface:
+
+    $ sudo apt install build-essential qtcreator qt5-default
+
+Build & run it:
+
+    $ mkdir build
+    $ cd build
+    $ qmake ..
+    $ make
+    $ sudo make install
+    $ samplebrain
+
+## Mac
+Install libraries for sample engine:
+
+    $ brew install fftw portaudio liblo libsndfile
+
+Install dependencies for the interface:
+
+    $ brew install qt
+    $ brew link qt
+
+Build & run it:
+
+    $ mkdir build
+    $ cd build
+    $ qmake ..
+    $ make
+
+`samplebrain.app` should then be in the app folder for you to run.
+
+# Mac build additions
+
+To make a mac app bundle:
+
+Run `macdeployqt` which copies all dependencies inside the app.
+
+    $ cd build
+    $ macdeployqt
+
+If the icon is not visible, you might need to copy desktop/samplebrain.icns (the icon) to the Resources directory in the app bundle.
+
+    $ cp ../desktop/samplebrain.icns samplebrain.app/Contents/Resources
+
+Then edit Info.plist to add samplebrain.icns to CFBundleIconFile. Key `CFBundleIconFile` should match:
+
+	<key>CFBundleIconFile</key>
+	<string>samplebrain.icns</string>
+
+You might also need to resign the app bundle after making any changes
+
+    $ codesign --force --deep --sign - samplebrain.app

changelog.md

@@ -0,0 +1,27 @@
+# Changlog
+
+0.18.3
+
+* **Windows**: [samplebrain_0.18.3_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.3_win.zip)
+* **Mac (intel/m1)**: [samplebrain_0.18.3_macintel.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.3_macintel.app.zip)
+
+Changes: Release fixes loading samples from paths longer than 255 characters
+
+0.18.2
+
+* **Windows**: [samplebrain_0.18.2_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.2_win.zip)    
+
+Changes: Crash fix when closing load session file dialog
+
+0.18.1
+
+* **Windows**: [samplebrain_0.18.1_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.1_win.zip)
+* **Mac (intel/m1)**: [samplebrain_0.18.1_macintel.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18.1_macintel.app.zip)
+
+Changes: Turned off microphone input to prevent security problems
+
+0.18 (initial release)
+
+* **Windows**: [samplebrain_0.18_win.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18_win.zip)
+* **Mac (intel)**: [samplebrain_0.18_macintel.zip](https://static.thentrythis.org/samplebrain/samplebrain_0.18_macintel.zip)
+* **Mac (m1)**: [samplebrain_0.18_m1_v2.dmg](https://static.thentrythis.org/samplebrain/samplebrain_0.18_m1_v2.dmg) 

gui/samplebrain.ui

@@ -11,7 +11,7 @@
    </rect>
   </property>
   <property name="windowTitle">
-   <string>samplebrain 0.18.3</string>
+   <string>samplebrain 0.18.4</string>
   </property>
   <widget class="QWidget" name="centralwidget">
    <layout class="QVBoxLayout" name="verticalLayout_4">
@@ -96,6 +96,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>plain fft match vs mfcc values </string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -156,6 +159,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>match original or normalised blocks</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -298,6 +304,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>use new blocks rather than similar ones</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -361,6 +370,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>how long it takes for the novelty to wear off</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -403,7 +415,7 @@
                </sizepolicy>
               </property>
               <property name="toolTip">
-               <string>how long it takes for the novelty to wear off</string>
+               <string>likelihood of playing the next block rather than the closest</string>
               </property>
               <property name="maximum">
                <number>100</number>
@@ -424,6 +436,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>likelihood of playing the next block rather than the closest</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -491,7 +506,7 @@
                </sizepolicy>
               </property>
               <property name="toolTip">
-               <string>how many connections to search (ordered in closeness)</string>
+               <string>repeat search (set novelty to 0 for dodgy jungle timessssstretch)</string>
               </property>
               <property name="minimum">
                <number>1</number>
@@ -666,7 +681,7 @@
                </sizepolicy>
               </property>
               <property name="toolTip">
-               <string>how many connections to search (ordered in closeness)</string>
+               <string>block difference higher than this causes a new search, skipping the target</string>
               </property>
               <property name="maximum">
                <number>10000</number>
@@ -752,7 +767,7 @@
                <number>99999</number>
               </property>
               <property name="value">
-               <number>3000</number>
+               <number>1000</number>
               </property>
              </widget>
             </item>
@@ -783,7 +798,7 @@
                <double>0.010000000000000</double>
               </property>
               <property name="value">
-               <double>0.800000000000000</double>
+               <double>0.750000000000000</double>
               </property>
              </widget>
             </item>
@@ -944,6 +959,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>amount to match the frequency</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -1001,6 +1019,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>mix in the normalised blocks</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -1061,6 +1082,9 @@
                 <verstretch>0</verstretch>
                </sizepolicy>
               </property>
+              <property name="toolTip">
+               <string>mix in the original blocks</string>
+              </property>
               <property name="maximum">
                <double>1.000000000000000</double>
               </property>
@@ -1236,7 +1260,7 @@
                <number>99999</number>
               </property>
               <property name="value">
-               <number>3000</number>
+               <number>1000</number>
               </property>
              </widget>
             </item>
@@ -1267,7 +1291,7 @@
                <double>0.010000000000000</double>
               </property>
               <property name="value">
-               <double>0.000000000000000</double>
+               <double>0.750000000000000</double>
               </property>
              </widget>
             </item>
@@ -1562,6 +1586,33 @@
         </item>
        </layout>
       </item>
+      <item>
+       <widget class="QPushButton" name="pushButton">
+        <property name="font">
+         <font>
+          <family>Comic Sans MS</family>
+          <weight>75</weight>
+          <bold>true</bold>
+         </font>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="icon">
+         <iconset resource="../app/samplebrain.qrc">
+          <normaloff>:/images/images/settings.png</normaloff>:/images/images/settings.png</iconset>
+        </property>
+        <property name="iconSize">
+         <size>
+          <width>32</width>
+          <height>32</height>
+         </size>
+        </property>
+        <property name="flat">
+         <bool>true</bool>
+        </property>
+       </widget>
+      </item>
       <item>
        <spacer name="horizontalSpacer">
         <property name="orientation">
@@ -1593,8 +1644,6 @@
  </widget>
  <resources>
   <include location="../app/samplebrain.qrc"/>
-  <include location="../app/samplebrain.qrc"/>
-  <include location="../app/samplebrain.qrc"/>
  </resources>
  <connections>
   <connection>
@@ -1604,8 +1653,8 @@
    <slot>play_slot()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>64</x>
+     <x>78</x>
-     <y>62</y>
+     <y>830</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1620,8 +1669,8 @@
    <slot>stop_slot()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>155</x>
+     <x>180</x>
-     <y>62</y>
+     <y>830</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1636,8 +1685,8 @@
    <slot>volume_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>189</x>
+     <x>465</x>
-     <y>480</y>
+     <y>852</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1652,8 +1701,8 @@
    <slot>stop_record()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>328</x>
+     <x>356</x>
-     <y>543</y>
+     <y>840</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1668,8 +1717,8 @@
    <slot>record()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>236</x>
+     <x>268</x>
-     <y>543</y>
+     <y>840</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1684,8 +1733,8 @@
    <slot>fft1_end_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>154</x>
+     <x>421</x>
-     <y>310</y>
+     <y>293</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1700,8 +1749,8 @@
    <slot>ratio_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>109</x>
+     <x>421</x>
-     <y>223</y>
+     <y>185</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1716,12 +1765,12 @@
    <slot>setValue(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>237</x>
+     <x>319</x>
-     <y>289</y>
+     <y>603</y>
     </hint>
     <hint type="destinationlabel">
-     <x>341</x>
+     <x>421</x>
-     <y>289</y>
+     <y>614</y>
     </hint>
    </hints>
   </connection>
@@ -1732,8 +1781,8 @@
    <slot>target_mix_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>330</x>
+     <x>720</x>
-     <y>446</y>
+     <y>669</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1748,8 +1797,8 @@
    <slot>generate_target_blocks()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>277</x>
+     <x>670</x>
-     <y>202</y>
+     <y>395</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1764,8 +1813,8 @@
    <slot>target_block_size(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>313</x>
+     <x>720</x>
-     <y>136</y>
+     <y>237</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1780,8 +1829,8 @@
    <slot>load_target()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>277</x>
+     <x>670</x>
-     <y>103</y>
+     <y>184</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1796,8 +1845,8 @@
    <slot>fft1_start_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>154</x>
+     <x>298</x>
-     <y>277</y>
+     <y>293</y>
     </hint>
     <hint type="destinationlabel">
      <x>399</x>
@@ -1812,8 +1861,8 @@
    <slot>target_block_overlap(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>619</x>
+     <x>720</x>
-     <y>196</y>
+     <y>291</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1828,12 +1877,12 @@
    <slot>setValue(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>341</x>
+     <x>421</x>
-     <y>289</y>
+     <y>614</y>
     </hint>
     <hint type="destinationlabel">
-     <x>237</x>
+     <x>319</x>
-     <y>289</y>
+     <y>603</y>
     </hint>
    </hints>
   </connection>
@@ -1844,8 +1893,8 @@
    <slot>synapses(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>341</x>
+     <x>421</x>
-     <y>289</y>
+     <y>614</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -1860,8 +1909,8 @@
    <slot>ratio_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>189</x>
+     <x>323</x>
-     <y>141</y>
+     <y>174</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1876,8 +1925,8 @@
    <slot>n_ratio_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>159</x>
+     <x>323</x>
-     <y>211</y>
+     <y>228</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1892,8 +1941,8 @@
    <slot>n_ratio_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>330</x>
+     <x>421</x>
-     <y>211</y>
+     <y>239</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1908,8 +1957,8 @@
    <slot>target_mix_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>159</x>
+     <x>622</x>
-     <y>446</y>
+     <y>658</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1924,8 +1973,8 @@
    <slot>n_mix_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>159</x>
+     <x>622</x>
-     <y>386</y>
+     <y>604</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1940,8 +1989,8 @@
    <slot>n_mix_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>330</x>
+     <x>720</x>
-     <y>386</y>
+     <y>615</y>
     </hint>
     <hint type="destinationlabel">
      <x>361</x>
@@ -1956,8 +2005,8 @@
    <slot>load_brain()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>615</x>
+     <x>941</x>
-     <y>357</y>
+     <y>661</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -1972,8 +2021,8 @@
    <slot>boredom_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>411</x>
+     <x>421</x>
-     <y>253</y>
+     <y>401</y>
     </hint>
     <hint type="destinationlabel">
      <x>321</x>
@@ -1988,8 +2037,8 @@
    <slot>novelty_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>411</x>
+     <x>421</x>
-     <y>217</y>
+     <y>347</y>
     </hint>
     <hint type="destinationlabel">
      <x>321</x>
@@ -2004,8 +2053,8 @@
    <slot>novelty_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>291</x>
+     <x>323</x>
-     <y>217</y>
+     <y>336</y>
     </hint>
     <hint type="destinationlabel">
      <x>321</x>
@@ -2020,8 +2069,8 @@
    <slot>boredom_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>291</x>
+     <x>323</x>
-     <y>253</y>
+     <y>390</y>
     </hint>
     <hint type="destinationlabel">
      <x>321</x>
@@ -2036,8 +2085,8 @@
    <slot>synapses(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>237</x>
+     <x>319</x>
-     <y>289</y>
+     <y>603</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2052,8 +2101,8 @@
    <slot>block_size(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>728</x>
+     <x>1157</x>
-     <y>109</y>
+     <y>450</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2068,8 +2117,8 @@
    <slot>block_overlap(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>728</x>
+     <x>1157</x>
-     <y>145</y>
+     <y>504</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2084,8 +2133,8 @@
    <slot>save_brain()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>728</x>
+     <x>1157</x>
-     <y>357</y>
+     <y>661</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2100,8 +2149,8 @@
    <slot>clear_brain()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>1061</x>
+     <x>1157</x>
-     <y>550</y>
+     <y>396</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2116,8 +2165,8 @@
    <slot>generate()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>671</x>
+     <x>1158</x>
-     <y>322</y>
+     <y>608</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2132,8 +2181,8 @@
    <slot>load_sound()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>841</x>
+     <x>868</x>
-     <y>550</y>
+     <y>396</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2148,12 +2197,12 @@
    <slot>setValue(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>241</x>
+     <x>346</x>
-     <y>282</y>
+     <y>498</y>
     </hint>
     <hint type="destinationlabel">
-     <x>343</x>
+     <x>421</x>
-     <y>282</y>
+     <y>509</y>
     </hint>
    </hints>
   </connection>
@@ -2164,12 +2213,12 @@
    <slot>setValue(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>343</x>
+     <x>421</x>
-     <y>282</y>
+     <y>509</y>
     </hint>
     <hint type="destinationlabel">
-     <x>241</x>
+     <x>346</x>
-     <y>282</y>
+     <y>498</y>
     </hint>
    </hints>
   </connection>
@@ -2180,8 +2229,8 @@
    <slot>search_stretch(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>241</x>
+     <x>346</x>
-     <y>282</y>
+     <y>498</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2196,12 +2245,12 @@
    <slot>setValue(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>231</x>
+     <x>305</x>
-     <y>410</y>
+     <y>657</y>
     </hint>
     <hint type="destinationlabel">
-     <x>337</x>
+     <x>421</x>
-     <y>410</y>
+     <y>668</y>
     </hint>
    </hints>
   </connection>
@@ -2212,12 +2261,12 @@
    <slot>setValue(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>337</x>
+     <x>421</x>
-     <y>410</y>
+     <y>668</y>
     </hint>
     <hint type="destinationlabel">
-     <x>231</x>
+     <x>305</x>
-     <y>410</y>
+     <y>657</y>
     </hint>
    </hints>
   </connection>
@@ -2228,8 +2277,8 @@
    <slot>slide_error(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>231</x>
+     <x>305</x>
-     <y>410</y>
+     <y>657</y>
     </hint>
     <hint type="destinationlabel">
      <x>566</x>
@@ -2244,8 +2293,8 @@
    <slot>stickyness_slot(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>385</x>
+     <x>421</x>
-     <y>296</y>
+     <y>455</y>
     </hint>
     <hint type="destinationlabel">
      <x>609</x>
@@ -2260,8 +2309,8 @@
    <slot>stickyness_slot(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>266</x>
+     <x>323</x>
-     <y>296</y>
+     <y>444</y>
     </hint>
     <hint type="destinationlabel">
      <x>609</x>
@@ -2276,8 +2325,8 @@
    <slot>autotune(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>531</x>
+     <x>622</x>
-     <y>477</y>
+     <y>550</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2292,8 +2341,8 @@
    <slot>autotune(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>616</x>
+     <x>720</x>
-     <y>477</y>
+     <y>561</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2308,8 +2357,8 @@
    <slot>load_session()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>535</x>
+     <x>616</x>
-     <y>707</y>
+     <y>799</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2324,8 +2373,8 @@
    <slot>save_session()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>535</x>
+     <x>616</x>
-     <y>744</y>
+     <y>851</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2340,8 +2389,8 @@
    <slot>stereo_mode(bool)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>539</x>
+     <x>721</x>
-     <y>594</y>
+     <y>717</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2356,8 +2405,8 @@
    <slot>algo(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>273</x>
+     <x>421</x>
-     <y>395</y>
+     <y>560</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2372,8 +2421,8 @@
    <slot>target_shape(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>557</x>
+     <x>720</x>
-     <y>233</y>
+     <y>342</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2388,8 +2437,8 @@
    <slot>brain_shape(int)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>824</x>
+     <x>1157</x>
-     <y>432</y>
+     <y>555</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2404,8 +2453,8 @@
    <slot>load_sounds()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>754</x>
+     <x>1013</x>
-     <y>321</y>
+     <y>396</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2420,8 +2469,8 @@
    <slot>select_all()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>813</x>
+     <x>1073</x>
-     <y>74</y>
+     <y>124</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2436,8 +2485,8 @@
    <slot>select_none()</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>862</x>
+     <x>1157</x>
-     <y>74</y>
+     <y>124</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2452,8 +2501,8 @@
    <slot>mic(bool)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>404</x>
+     <x>721</x>
-     <y>601</y>
+     <y>442</y>
     </hint>
     <hint type="destinationlabel">
      <x>454</x>
@@ -2461,6 +2510,22 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>pushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>MainWindow</receiver>
+   <slot>settings()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>680</x>
+     <y>809</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>776</x>
+     <y>849</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
  <slots>
   <slot>play_slot()</slot>
@@ -2518,5 +2583,6 @@
   <slot>select_all()</slot>
   <slot>select_none()</slot>
   <slot>mic(bool)</slot>
+  <slot>settings()</slot>
  </slots>
 </ui>

gui/settings.ui

@@ -0,0 +1,317 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>SettingsDialog</class>
+ <widget class="QDialog" name="SettingsDialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>400</width>
+    <height>522</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>settings</string>
+  </property>
+  <layout class="QVBoxLayout" name="verticalLayout_2">
+   <item>
+    <layout class="QVBoxLayout" name="verticalLayout" stretch="0,0,0">
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout">
+       <item>
+        <widget class="QLabel" name="label">
+         <property name="font">
+          <font>
+           <family>Comic Sans MS</family>
+          </font>
+         </property>
+         <property name="text">
+          <string>device</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QComboBox" name="deviceComboBox"/>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <layout class="QHBoxLayout" name="horizontalLayout_2">
+       <item>
+        <widget class="QLabel" name="label_2">
+         <property name="font">
+          <font>
+           <family>Comic Sans MS</family>
+          </font>
+         </property>
+         <property name="text">
+          <string>sample rate</string>
+         </property>
+        </widget>
+       </item>
+       <item>
+        <widget class="QLineEdit" name="samplerateLineEdit">
+         <property name="sizePolicy">
+          <sizepolicy hsizetype="Fixed" vsizetype="Fixed">
+           <horstretch>0</horstretch>
+           <verstretch>0</verstretch>
+          </sizepolicy>
+         </property>
+         <property name="text">
+          <string>44100</string>
+         </property>
+        </widget>
+       </item>
+      </layout>
+     </item>
+     <item>
+      <widget class="QLabel" name="label_5">
+       <property name="font">
+        <font>
+         <family>Comic Sans MS</family>
+         <pointsize>8</pointsize>
+        </font>
+       </property>
+       <property name="text">
+        <string>(note: this currently should probably match your sample file's input rate as no conversion is run on them - yet)</string>
+       </property>
+       <property name="wordWrap">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <layout class="QHBoxLayout" name="horizontalLayout_3">
+     <item>
+      <widget class="QLabel" name="label_3">
+       <property name="font">
+        <font>
+         <family>Comic Sans MS</family>
+        </font>
+       </property>
+       <property name="text">
+        <string>buffer size</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QComboBox" name="buffersizeComboBox">
+       <property name="currentIndex">
+        <number>5</number>
+       </property>
+       <item>
+        <property name="text">
+         <string>64</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>128</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>256</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>512</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>1024</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>2048</string>
+        </property>
+       </item>
+       <item>
+        <property name="text">
+         <string>4096</string>
+        </property>
+       </item>
+      </widget>
+     </item>
+    </layout>
+   </item>
+   <item>
+    <widget class="QLabel" name="label_4">
+     <property name="font">
+      <font>
+       <family>Comic Sans MS</family>
+      </font>
+     </property>
+     <property name="text">
+      <string>messages</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QLabel" name="messagesLabel">
+     <property name="sizePolicy">
+      <sizepolicy hsizetype="Preferred" vsizetype="Expanding">
+       <horstretch>0</horstretch>
+       <verstretch>0</verstretch>
+      </sizepolicy>
+     </property>
+     <property name="font">
+      <font>
+       <family>Comic Sans MS</family>
+       <pointsize>8</pointsize>
+      </font>
+     </property>
+     <property name="autoFillBackground">
+      <bool>false</bool>
+     </property>
+     <property name="styleSheet">
+      <string notr="true">border: 1px solid;</string>
+     </property>
+     <property name="text">
+      <string/>
+     </property>
+     <property name="alignment">
+      <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QPushButton" name="applyPushButton">
+     <property name="font">
+      <font>
+       <family>Comic Sans MS</family>
+      </font>
+     </property>
+     <property name="text">
+      <string>apply settings</string>
+     </property>
+    </widget>
+   </item>
+   <item>
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="font">
+      <font>
+       <family>Comic Sans MS</family>
+      </font>
+     </property>
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>SettingsDialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>231</x>
+     <y>358</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>SettingsDialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>299</x>
+     <y>364</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>samplerateLineEdit</sender>
+   <signal>textEdited(QString)</signal>
+   <receiver>SettingsDialog</receiver>
+   <slot>samplerate(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>270</x>
+     <y>71</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>394</x>
+     <y>156</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>applyPushButton</sender>
+   <signal>clicked()</signal>
+   <receiver>SettingsDialog</receiver>
+   <slot>apply()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>112</x>
+     <y>321</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>4</x>
+     <y>315</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>deviceComboBox</sender>
+   <signal>currentTextChanged(QString)</signal>
+   <receiver>SettingsDialog</receiver>
+   <slot>output_device(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>323</x>
+     <y>45</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>393</x>
+     <y>64</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buffersizeComboBox</sender>
+   <signal>currentTextChanged(QString)</signal>
+   <receiver>SettingsDialog</receiver>
+   <slot>buffersize(QString)</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>326</x>
+     <y>131</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>395</x>
+     <y>208</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+ <slots>
+  <slot>output_device(QString)</slot>
+  <slot>samplerate(QString)</slot>
+  <slot>buffersize(QString)</slot>
+  <slot>apply()</slot>
+ </slots>
+</ui>

samplebrain.pro

@@ -10,11 +10,14 @@ INCLUDEPATH += . 2
 QT += core gui widgets
 
 # Input
-HEADERS += app/MainWindow.h
+HEADERS += app/MainWindow.h \
+           app/SettingsDialog.h
 
-FORMS += gui/samplebrain.ui
+FORMS += gui/samplebrain.ui \
+         gui/settings.ui
 
 SOURCES += app/MainWindow.cpp \
+           app/SettingsDialog.cpp \
            app/sound_items.cpp \
            app/audio_thread.cpp \
            app/process_thread.cpp \