public RESULT setMixMatrix(float[] matrix, int outchannels, int inchannels, int inchannel_hop) { return FMOD_ChannelGroup_SetMixMatrix(rawPtr, matrix, outchannels, inchannels, inchannel_hop); } public RESULT getMixMatrix(float[] matrix, out int outchannels, out int inchannels, int inchannel_hop)