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feat: sampler no longer quantizes to nearest semitone but can work between pitches

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fixes #447
This commit is contained in:
Yotam Mann 2020-06-17 17:15:56 -04:00
parent de95b27af0
commit 4435329b03
1 changed files with 5 additions and 3 deletions
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8
Tone/instrument/Sampler.ts
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@ -1,6 +1,6 @@
import { ToneAudioBuffer } from "../core/context/ToneAudioBuffer";
import { ToneAudioBuffers } from "../core/context/ToneAudioBuffers";
import { intervalToFrequencyRatio } from "../core/type/Conversions";
import { ftomf, intervalToFrequencyRatio } from "../core/type/Conversions";
import { FrequencyClass } from "../core/type/Frequency";
import { Frequency, Interval, MidiNote, NormalRange, Note, Time } from "../core/type/Units";
import { optionsFromArguments } from "../core/util/Defaults";
@ -176,12 +176,14 @@ export class Sampler extends Instrument<SamplerOptions> {
notes = [notes];
}
notes.forEach(note => {
const midi = new FrequencyClass(this.context, note).toMidi();
const midiFloat = ftomf(new FrequencyClass(this.context, note).toFrequency());
const midi = Math.round(midiFloat) as MidiNote;
const remainder = midiFloat - midi;
// find the closest note pitch
const difference = this._findClosest(midi);
const closestNote = midi - difference;
const buffer = this._buffers.get(closestNote);
const playbackRate = intervalToFrequencyRatio(difference);
const playbackRate = intervalToFrequencyRatio(difference + remainder);
// play that note
const source = new ToneBufferSource({
url: buffer,