public void SetSoundTouchProfile(SoundTouchProfile soundTouchProfile)
{
if (currentSoundTouchProfile != null &&
playbackRate != 1.0f &&
soundTouchProfile.UseTempo != currentSoundTouchProfile.UseTempo)
{
if (soundTouchProfile.UseTempo)
{
soundTouch.SetRate(1.0f);
soundTouch.SetPitchOctaves(0f);
soundTouch.SetTempo(playbackRate);
}
else
{
soundTouch.SetTempo(1.0f);
soundTouch.SetRate(playbackRate);
}
}
this.currentSoundTouchProfile = soundTouchProfile;
soundTouch.SetUseAntiAliasing(soundTouchProfile.UseAntiAliasing);
soundTouch.SetUseQuickSeek(soundTouchProfile.UseQuickSeek);
}
public VarispeedSampleProvider(ISampleProvider sourceProvider, int readDurationMilliseconds, SoundTouchProfile soundTouchProfile)
{
soundTouch = new SoundTouch();
// explore what the default values are before we change them:
//Debug.WriteLine(String.Format("SoundTouch Version {0}", soundTouch.VersionString));
//Debug.WriteLine("Use QuickSeek: {0}", soundTouch.GetUseQuickSeek());
//Debug.WriteLine("Use AntiAliasing: {0}", soundTouch.GetUseAntiAliasing());
SetSoundTouchProfile(soundTouchProfile);
this.sourceProvider = sourceProvider;
soundTouch.SetSampleRate(WaveFormat.SampleRate);
channelCount = WaveFormat.Channels;
soundTouch.SetChannels(channelCount);
sourceReadBuffer = new float[(WaveFormat.SampleRate * channelCount * (long)readDurationMilliseconds) / 1000];
soundTouchReadBuffer = new float[sourceReadBuffer.Length * 10]; // support down to 0.1 speed
}