diff --git a/README.md b/README.md
index 198d1ba..5345d4e 100644
--- a/README.md
+++ b/README.md
@@ -96,4 +96,7 @@ To make a mac app bundle:
     
 This program is free software licenced under GNU General Public
 License version 2 (see LICENCE). Written by [Dave
-Griffiths at Then Try This](http://thentrythis.org).
\ No newline at end of file
+Griffiths at Then Try This](http://thentrythis.org) dave@thentrythis.org.
+
+MFCC algo courtesy of the Aquila library by Zbigniew Siciarz MIT/X11
+licence 2007-2014 (see brain/src/aquila/LICENCE)
\ No newline at end of file
diff --git a/brain/src/aquila/LICENCE b/brain/src/aquila/LICENCE
new file mode 100644
index 0000000..1f49490
--- /dev/null
+++ b/brain/src/aquila/LICENCE
@@ -0,0 +1,22 @@
+Copyright (c) 2007-2014 Zbigniew Siciarz
+
+ Permission is hereby granted, free of charge, to any person
+ obtaining a copy of this software and associated documentation
+ files (the "Software"), to deal in the Software without
+ restriction, including without limitation the rights to use,
+ copy, modify, merge, publish, distribute, sublicense, and/or sell
+ copies of the Software, and to permit persons to whom the
+ Software is furnished to do so, subject to the following
+ conditions:
+
+ The above copyright notice and this permission notice shall be
+ included in all copies or substantial portions of the Software.
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+ OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+ HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ OTHER DEALINGS IN THE SOFTWARE.
\ No newline at end of file
diff --git a/brain/src/block_stream.cpp b/brain/src/block_stream.cpp
index 482e0a8..ea56504 100644
--- a/brain/src/block_stream.cpp
+++ b/brain/src/block_stream.cpp
@@ -36,7 +36,9 @@ block_stream::block_stream() :
 {
   for (u32 i=0; i<NUM_WORKERS; ++i) {
     m_workers.push_back(new worker(i,&m_window));
+#ifndef WIN32
     usleep(1);  
+#endif
   }
 }
 
@@ -141,7 +143,9 @@ void block_stream::worker::run() {
       cerr<<"ending "<<m_id<<endl;
     }
     pthread_mutex_unlock(m_worker_mutex);
+#ifndef WIN32
     usleep(5);
+#endif
   }
 }
 
diff --git a/brain/src/block_stream.h b/brain/src/block_stream.h
index a8bfd33..bc26998 100644
--- a/brain/src/block_stream.h
+++ b/brain/src/block_stream.h
@@ -15,6 +15,7 @@
 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 
 #include <vector>
+#include <pthread.h>
 #include "window.h"
 #include "block.h"
 #include "spiralcore/sample.h"