@audio/voice
Voice synthesis (speech analysis/processing lives in
@audio/speech-*).
| Package | What |
|---|---|
@audio/voice-glottis |
LF (Fant–Liljencrants–Lin) / Rosenberg glottal source — generator |
@audio/voice-tract |
Kelly-Lochbaum waveguide tract — Pink Trombone class (zakaton fork) — filter |
@audio/voice-voder |
Dudley 1939 Voder recreation (gmoe/voder) — frame sequencer |
Three distinct signatures, chained glottis → tract for articulatory synthesis, or voder standalone:
import { glottis, tract, voder, VOWELS, BANDS } from '@audio/voice'
let excitation = glottis({ f0: 120, duration: 0.5 }) // → Float32Array (generator)
let vowel = tract(excitation, { shape: 'a' }) // Float32Array → Float32Array (filter)
let speech = voder([
{ gains: [0,0,1,0,0,0,0,0,0,0], f0: 110, duration: 0.4 }, // frame: 10-band gains
]) // frames[] → Float32Arrayglottis(opts: {f0=120, duration=1, fs=44100, model='lf', Rd=1.7, jitter=0.005, shimmer=0.03, aspiration=0.01, seed}) → Float32Array
tract(excitation: Float32Array, opts: {shape='a' (vowel name in VOWELS | area array), sections=24, lipReflection=-0.85, glottalReflection=0.75, damping=0.996, fs=44100}) → Float32Array
voder(frames: Array<{gains: number[10], voiced=true, f0=110, duration=0.15}>, opts: {fs=44100, amp=0.8, seed}) → Float32Array — BANDS = the 10 channel center frequencies (225 Hz–7.5 kHz).
The site-todo "Voice generator (via natural tract gen)" idea. TTS = external/ML lane (see @audio/neural). Consumers: mridangam-syllable experiments, De-Slop resynthesis, speech-world.