GameCult/AquaSynth
Watch
9
0
Fork
You've already forked AquaSynth
 0
Code Issues Pull requests 4 Projects Releases Packages Wiki Activity Actions

Expose burst in tract playground

Browse source
This commit is contained in:
Meta Vens 2026-05-26 20:21:41 +01:00
commit 8ac425c888
2 changed files with 16 additions and 12 deletions
Download patch file Download diff file Expand all files Collapse all files

10
tools/vocal-tract-playground/README.md
View file

@ -17,8 +17,10 @@ http://localhost:5125/
This is a tract-voice control witness. It exposes the same Pink
Trombone-shaped controls that Aqua DSL now lowers through `tract`: frequency,
intensity, tenseness, tongue index/diameter, velum, constriction
index/diameter, turbulence, lip opening, and radiation reflection controls.
index/diameter, turbulence, burst, lip opening, and radiation reflection
controls.
The browser synth runs a small 44-cell/28-cell waveguide-style witness so the
knobs are touchable while the Faust lowering keeps maturing toward exact Pink
Trombone parity.
The browser synth runs a small waveguide-style witness so the knobs are
touchable while the Faust graph lowering keeps maturing toward Pink Trombone
parity. It is a control playground, not the canonical DSP owner; the canonical
audio path is still the Aqua DSL -> Faust graph lowering.

18
tools/vocal-tract-playground/app.js
View file

@ -10,6 +10,7 @@ const controlSpecs = [
["Constriction index", "constrictionIndex", "tract", 32, 2, 43, "cell"],
["Constriction diameter", "constrictionDiameter", "tract", 1.0, -0.7, 3.4, "diam"],
["Turbulence", "turbulence", "source", 0.18, 0, 1, ""],
["Burst", "burst", "source", 0.25, 0, 1, ""],
["Lip opening", "lipOpening", "tract", 1.5, 0.35, 2.5, "diam"],
["Glottal reflection", "glottalReflection", "spectral", 0.75, -0.95, 0.95, ""],
["Lip reflection", "lipReflection", "spectral", -0.85, -0.98, 0.1, ""],
@ -21,31 +22,31 @@ const presets = {
frequency: 140, intensity: 0.72, tenseness: 0.58, tongueIndex: 13,
tongueDiameter: 2.7, velum: 0.01, constrictionIndex: 32,
constrictionDiameter: 1.4, turbulence: 0.08, lipOpening: 1.7,
glottalReflection: 0.75, lipReflection: -0.85, gain: 0.72
burst: 0.25, glottalReflection: 0.75, lipReflection: -0.85, gain: 0.72
},
ee: {
frequency: 165, intensity: 0.68, tenseness: 0.72, tongueIndex: 27,
tongueDiameter: 1.05, velum: 0.01, constrictionIndex: 34,
constrictionDiameter: 1.2, turbulence: 0.04, lipOpening: 1.1,
glottalReflection: 0.75, lipReflection: -0.85, gain: 0.68
burst: 0.25, glottalReflection: 0.75, lipReflection: -0.85, gain: 0.68
},
oo: {
frequency: 128, intensity: 0.72, tenseness: 0.55, tongueIndex: 12,
tongueDiameter: 2.9, velum: 0.01, constrictionIndex: 38,
constrictionDiameter: 1.5, turbulence: 0.03, lipOpening: 0.55,
glottalReflection: 0.75, lipReflection: -0.9, gain: 0.74
burst: 0.25, glottalReflection: 0.75, lipReflection: -0.9, gain: 0.74
},
ss: {
frequency: 130, intensity: 0.48, tenseness: 0.22, tongueIndex: 28,
tongueDiameter: 0.75, velum: 0.01, constrictionIndex: 34,
constrictionDiameter: 0.35, turbulence: 0.95, lipOpening: 1.2,
glottalReflection: 0.65, lipReflection: -0.82, gain: 0.78
burst: 0.25, glottalReflection: 0.65, lipReflection: -0.82, gain: 0.78
},
ma: {
frequency: 132, intensity: 0.66, tenseness: 0.52, tongueIndex: 14,
tongueDiameter: 2.2, velum: 0.33, constrictionIndex: 18,
constrictionDiameter: 0.8, turbulence: 0.12, lipOpening: 1.35,
glottalReflection: 0.78, lipReflection: -0.84, gain: 0.72
burst: 0.25, glottalReflection: 0.78, lipReflection: -0.84, gain: 0.72
}
};
@ -286,7 +287,8 @@ function createTractSynth(sampleRate) {
const thinness = Math.max(0, Math.min(1, 8 * (0.7 - s.constrictionDiameter)));
const openness = Math.max(0, Math.min(1, 30 * (s.constrictionDiameter - 0.3)));
const frontLift = 0.35 + 0.65 * Math.max(0, Math.min(1, s.constrictionIndex / 44));
const amount = rand() * s.turbulence * thinness * openness * s.intensity * frontLift * 1.8;
const pressure = Math.max(s.turbulence, s.burst);
const amount = rand() * s.turbulence * pressure * thinness * openness * s.intensity * frontLift * 1.8;
const i = Math.floor(s.constrictionIndex);
const delta = s.constrictionIndex - i;
if (i + 1 < sections) {
@ -345,7 +347,7 @@ function createTractSynth(sampleRate) {
function updateTransient(s) {
const opening = s.constrictionDiameter - lastConstrictionDiameter;
if (opening > 0.18 && lastConstrictionDiameter < 0.28) {
transient += opening * s.intensity * (0.18 + s.turbulence * 0.42);
transient += opening * s.intensity * (0.18 + s.turbulence * 0.42) * s.burst;
}
lastConstrictionDiameter = s.constrictionDiameter;
}
@ -524,7 +526,7 @@ function drawWave(cx, cy, length, scale) {
function drawReadout(width, height) {
ctx.fillStyle = "#f0f4ed";
ctx.font = "700 22px system-ui, sans-serif";
ctx.fillText(`tract voice sections=44 nose=28 freq=${state.frequency.toFixed(1)}Hz tense=${state.tenseness.toFixed(2)} velum=${state.velum.toFixed(2)}`, 28, 42);
ctx.fillText(`tract graph witness freq=${state.frequency.toFixed(1)}Hz tense=${state.tenseness.toFixed(2)} velum=${state.velum.toFixed(2)} burst=${state.burst.toFixed(2)}`, 28, 42);
ctx.fillStyle = "#a8b3a3";
ctx.font = "15px system-ui, sans-serif";
ctx.fillText("Aqua DSL tract voice controls: source, tongue, velum, constriction, turbulence, radiation", 28, height - 24);