--- src/csound.h.orig 2013-12-24 23:45:41.000000000 -0800 +++ src/csound.h 2015-01-07 07:38:09.000000000 -0800 @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -49,7 +50,7 @@ private: // Private attributes snd_pcm_t *handle; bool output; - double buffer[2*BUF_SIZE]; // 16 bit , stereo + int32_t buffer[2*BUF_SIZE]; // 16 bit , stereo QMutex LockPointers; QWaitCondition WakeUp; void record();