Andras Schmelczer
c40c5d97db
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33 lines
1.1 KiB
TypeScript
33 lines
1.1 KiB
TypeScript
import type { VibePreset } from '../vibes';
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import type { GardenAudioChord, GardenAudioVibeProfile } from './garden-audio-config';
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export const PITCH_SEMITONES_PER_OCTAVE = 12;
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const DEFAULT_PROGRESSION: ReadonlyArray<GardenAudioChord> = [
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{ rootOffset: 0, quality: 'major' },
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{ rootOffset: 9, quality: 'minor' },
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{ rootOffset: 5, quality: 'major' },
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{ rootOffset: 7, quality: 'major' },
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];
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const DEFAULT_ROOT_MIDI = 57;
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const DEFAULT_SCALE: ReadonlyArray<number> = [0, 2, 4, 7, 9];
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const getProfileScale = (vibe: VibePreset): Array<number> => {
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const scale = vibe.audio.scale?.length ? vibe.audio.scale : DEFAULT_SCALE;
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return [...scale];
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};
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const getProfileProgression = (vibe: VibePreset): Array<GardenAudioChord> =>
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(vibe.audio.progression?.length ? vibe.audio.progression : DEFAULT_PROGRESSION).map(
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(chord) => ({ ...chord })
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);
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export const getVibeProfile = (vibe: VibePreset): GardenAudioVibeProfile => {
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return {
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...vibe.audio,
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rootMidi: DEFAULT_ROOT_MIDI + vibe.audio.notePitchOffset,
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scale: getProfileScale(vibe),
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progression: getProfileProgression(vibe),
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};
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};
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