sample source for WT
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5 changed files with 44 additions and 28 deletions
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@ -1,5 +1,5 @@
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import { noteToMidi, valueToMidi, getSoundIndex } from './util.mjs';
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import { getAudioContext, registerSound } from './index.mjs';
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import { getAudioContext, registerSound, registerWaveTable } from './index.mjs';
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import { getADSRValues, getParamADSR, getPitchEnvelope, getVibratoOscillator } from './helpers.mjs';
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import { logger } from './logger.mjs';
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@ -79,14 +79,14 @@ export const getSampleBufferSource = async (hapValue, bank, resolveUrl) => {
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bufferSource.buffer = buffer;
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bufferSource.playbackRate.value = playbackRate;
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const { s, loopBegin = 0, loopEnd = 1, begin = 0, end = 1 } = hapValue;
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const { loopBegin = 0, loopEnd = 1, begin = 0, end = 1 } = hapValue;
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// "The computation of the offset into the sound is performed using the sound buffer's natural sample rate,
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// rather than the current playback rate, so even if the sound is playing at twice its normal speed,
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// the midway point through a 10-second audio buffer is still 5."
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const offset = begin * bufferSource.buffer.duration;
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const loop = s.startsWith('wt_') ? 1 : hapValue.loop;
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const loop = hapValue.loop;
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if (loop) {
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bufferSource.loop = true;
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bufferSource.loopStart = loopBegin * bufferSource.buffer.duration - offset;
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@ -267,16 +267,13 @@ export const samples = async (sampleMap, baseUrl = sampleMap._base || '', option
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return samples(json, baseUrl || base, options);
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}
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const { prebake, tag } = options;
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processSampleMap(
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sampleMap,
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(key, bank) =>
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registerSound(key, (t, hapValue, onended) => onTriggerSample(t, hapValue, onended, bank), {
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type: 'sample',
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samples: bank,
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baseUrl,
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prebake,
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tag,
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}),
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(key, bank) => {
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registerSample(key, bank, { baseUrl, prebake, tag })
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},
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baseUrl,
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);
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};
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@ -366,3 +363,22 @@ export async function onTriggerSample(t, value, onended, bank, resolveUrl) {
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return handle;
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}
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function registerSample(key, bank, params) {
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registerSound(key, (t, hapValue, onended) => onTriggerSample(t, hapValue, onended, bank), {
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type: 'sample',
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samples: bank,
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...params
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})
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}
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export function registerSampleSource(key, bank, params) {
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const isWavetable = key.startsWith('wt_');
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if (isWavetable) {
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registerWaveTable(key,bank, params)
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} else {
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registerSample(key, bank, params)
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}
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}
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