static void ChangePcmTone(FILE *inFile, FILE *outFile, float TempoChange, float PitchSemiTones, float RateChange)
{
SoundTouch soundTouch;
// Setup the 'SoundTouch' object for processing the sound
soundTouch.setSampleRate(8000);
soundTouch.setChannels(1);
soundTouch.setTempoChange(TempoChange);
soundTouch.setPitchSemiTones(PitchSemiTones); //’˝œÚ «x÷·¿≠≥§£¨4±»Ωœ¿ÌœÎ
soundTouch.setRateChange(RateChange); //’˝œÚ «x÷·¿≠≥§£¨50
//soundTouch.setTempoChange(20);
//soundTouch.setPitchSemiTones(6.0f); //’˝œÚ «x÷·¿≠≥§£¨4±»Ωœ¿ÌœÎ
//soundTouch.setRateChange(0); //’˝œÚ «x÷·¿≠≥§£¨50
//soundTouch.setTempoChange(1.0);
//soundTouch.setPitchSemiTones(20);
//soundTouch.setRateChange(-2.0);
soundTouch.setSetting(SETTING_USE_QUICKSEEK, 0);
soundTouch.setSetting(SETTING_USE_AA_FILTER, 1);
soundTouch.setSetting(SETTING_SEQUENCE_MS, 40);
soundTouch.setSetting(SETTING_SEEKWINDOW_MS, 15);
soundTouch.setSetting(SETTING_OVERLAP_MS, 8);
#if 0
if (params->speech)
{
// use settings for speech processing
soundTouch.setSetting(SETTING_SEQUENCE_MS, 40);
soundTouch.setSetting(SETTING_SEEKWINDOW_MS, 15);
soundTouch.setSetting(SETTING_OVERLAP_MS, 8);
fprintf(stderr, "Tune processing parameters for speech processing.\n");
}
#endif
// Process the sound
process(&soundTouch, inFile, outFile);
fflush(outFile);
}
void SoundTouch_setTempoChange(void *stouch, float percentTempo)
{
SoundTouch *soundTouch = (SoundTouch *)stouch;
soundTouch->setTempoChange(percentTempo);
}