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Merge pull request #26 from LLK/bugfix/playnote-volume

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Playnote uses volume from vm to set gain
This commit is contained in:
Eric Rosenbaum 2017-02-10 14:08:14 -05:00 committed by GitHub
commit 4eb12ea075
2 changed files with 11 additions and 5 deletions
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9
src/InstrumentPlayer.js
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@ -34,12 +34,17 @@ function InstrumentPlayer (outputNode) {
* @param {number} note - a MIDI note number
* @param {number} sec - a duration in seconds
* @param {number} instrumentNum - an instrument number (0-indexed)
* @param {number} vol - a volume level (0-100%)
*/
InstrumentPlayer.prototype.playNoteForSecWithInst = function (note, sec, instrumentNum) {
InstrumentPlayer.prototype.playNoteForSecWithInstAndVol = function (note, sec, instrumentNum, vol) {
var gain = vol / 100;
this.loadInstrument(instrumentNum)
.then(() => {
this.instruments[instrumentNum].play(
note, Tone.context.currentTime, {duration : sec}
note, Tone.context.currentTime, {
duration : sec,
gain : gain
}
);
});
};

7
src/index.js
View file

@ -91,15 +91,16 @@ AudioEngine.prototype.loadSounds = function (sounds) {
};
/**
* Play a note for a duration on an instrument
* Play a note for a duration on an instrument with a volume
* @param {number} note - a MIDI note number
* @param {number} beats - a duration in beats
* @param {number} inst - an instrument number (0-indexed)
* @param {number} vol - a volume level (0-100%)
* @return {Promise} a Promise that resolves after the duration has elapsed
*/
AudioEngine.prototype.playNoteForBeatsWithInst = function (note, beats, inst) {
AudioEngine.prototype.playNoteForBeatsWithInstAndVol = function (note, beats, inst, vol) {
var sec = this.beatsToSec(beats);
this.instrumentPlayer.playNoteForSecWithInst(note, sec, inst);
this.instrumentPlayer.playNoteForSecWithInstAndVol(note, sec, inst, vol);
return this.waitForBeats(beats);
};