12-polyphonic "chiptune" MIDI synthesizer for LPC1768 (Standalone version)
Dependencies: ClockControl PowerControl mbed
Diff: Instrument.cpp
- Revision:
- 4:b2423ad4b248
- Parent:
- 0:727737138ac5
--- a/Instrument.cpp Tue Nov 18 17:05:49 2014 +0000 +++ b/Instrument.cpp Tue Dec 09 15:04:13 2014 +0000 @@ -53,7 +53,6 @@ /** Set wave frequency */ void Instrument::setFrequency(uint16_t f) { this->frequency = f; - this->duration = 0; // Reset duration calculatePhaseDelta(); // Recalculate phase delta } @@ -75,6 +74,11 @@ calculateMasterVolume(); } +/** Reset sounding duration to zero */ +void Instrument::resetDuration() { + this->duration = 0; +} + /** Get sampling rate */ uint16_t Instrument::getSamplingRate() { return this->samplingRate; @@ -145,7 +149,7 @@ /** (Re)calculate phase delta per sample */ void Instrument::calculatePhaseDelta() { - phase = 0x0000; + // phase = 0x0000; phaseDelta = (uint16_t) ((uint32_t) frequency * WAVETABLE_LENGTH * 256 / samplingRate); }