Fixed resampling, gained over 30 % cpu usage!!!!

src/samplerateconverter.cpp

@@ -64,8 +64,8 @@ void SamplerateConverter::init( void ) {
   // libSamplerateConverter-related
   // Set the converter type for the upsampling and the downsampling
   // interpolator SRC_SINC_BEST_QUALITY
-  _src_state_mic  = src_new(SRC_SINC_BEST_QUALITY, 1, &_src_err);
-  _src_state_spkr = src_new(SRC_SINC_BEST_QUALITY, 1, &_src_err);
+  _src_state_mic  = src_new(SRC_LINEAR, 1, &_src_err);
+  _src_state_spkr = src_new(SRC_LINEAR, 1, &_src_err);
 
   int nbSamplesMax = (int) ( getFrequence() * getFramesize() / 1000 );
   _floatBufferDownMic  = new float32[nbSamplesMax];