static extern AudioUnitStatus AudioUnitSetProperty(IntPtr inUnit, AUNGraphicParams inID, AudioUnitScopeType inScope, int inElement, ref uint inData, uint inDataSize);
static extern unsafe AudioUnitStatus AudioUnitGetProperty(IntPtr inUnit, AUNGraphicParams inID, AudioUnitScopeType inScope, uint inElement, ref uint outData, ref uint ioDataSize);