|mv||Pointer to the multi-voice.|
|ratio||New pitch (SRC ratio) to apply.|
||Ratio is between the legal 0.0 - 8.0 limits.|
||Ratio is less than 0. It is clamped to 0.|
||Ratio is greater than 8.0. It is clamped to 8.0.|
Applies the given sample rate conversion ratio (pitch) to the multi-voice mv. The pitch may be changed while the multi-voice is active and running.
2013/10/20 Initial Version