#ifndef _INSTRUMENTPARAMETERS_H_ #define _INSTRUMENTPARAMETERS_H_ struct sInstrumentParameters { unsigned char iVolume; unsigned char iPanning; signed char iDetune; unsigned char iDuty; unsigned char iAttack; // 1..255 unsigned char iDecay; // 1..255 unsigned char iSustain; // 0..127 unsigned char iRelease; // 1..255 unsigned char iTremoloAmplitude; unsigned char iTremoloFrequency; unsigned char iPortamentoLength; unsigned char iSweepLength; signed short iSweepOffset; unsigned char iModulationAmplitude; unsigned char iModulationFrequency; unsigned char iArpeggio; unsigned char pad; }; typedef struct sInstrumentParameters InstrumentParameters; void InstrumentParameters_Init(InstrumentParameters * pParameters); #endif // _INSTRUMENTPARAMETERS_H_