kVolumeFactor
_DbToGain(_ExponentialToLinear(kVolumeDbMin)) * kVolumeFactor,
_DbToGain(_ExponentialToLinear(kVolumeDbMax)) * kVolumeFactor,
kVolumeFactor, new BMessage(MSG_SET_VOLUME));
* kVolumeFactor);
int32 pos = (int32)(floorf(gain * kVolumeFactor + 0.5));
float pos = fVolumeSlider->Value() / (float)kVolumeFactor;