InitRamp
fPausing = InitRamp(&fPauseGain, 0.0,
fPausing = InitRamp(&fPauseGain, 1.0,
_gs_ramp* InitRamp(float* value, float set, float frames, bigtime_t duration);
fGainRamp = InitRamp(&fGain, gain, fFormat.frame_rate, duration);
fPanRamp = InitRamp(&fPan, pan, fFormat.frame_rate, duration);