andras/fleeting-garden
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Minor improvements

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This commit is contained in:
Andras Schmelczer 2026-05-26 20:59:01 +01:00
commit 4e24df1511
9 changed files with 175 additions and 100 deletions
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28
src/audio/garden-audio-graph.ts
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@ -28,10 +28,10 @@ const graphTuning = {
latencyHint: 'interactive',
outputFilterType: 'highpass',
compressor: {
thresholdDb: -18,
kneeDb: 18,
ratio: 2.1,
attackSeconds: 0.018,
thresholdDb: -22,
kneeDb: 12,
ratio: 4.5,
attackSeconds: 0.006,
releaseSeconds: 0.18,
},
} as const;
@ -87,10 +87,12 @@ export class GardenAudioGraph {
const context = new AudioContextConstructor({
latencyHint: graphTuning.latencyHint,
});
const outputBus = context.createGain();
const masterGain = context.createGain();
const highPass = context.createBiquadFilter();
const compressor = context.createDynamicsCompressor();
outputBus.gain.value = 1;
masterGain.gain.value = 0;
highPass.type = graphTuning.outputFilterType;
highPass.frequency.value = outputHighPassFrequencyHz;
@ -100,15 +102,17 @@ export class GardenAudioGraph {
compressor.attack.value = graphTuning.compressor.attackSeconds;
compressor.release.value = graphTuning.compressor.releaseSeconds;
masterGain.connect(highPass);
// Keep peak control independent from the user's volume slider.
outputBus.connect(highPass);
highPass.connect(compressor);
compressor.connect(context.destination);
compressor.connect(masterGain);
masterGain.connect(context.destination);
this.context = context;
this.masterGain = masterGain;
this.noiseBuffer = this.createNoiseBuffer(context);
this.createDelay(context, masterGain);
this.createBuses(context, masterGain);
this.createDelay(context, outputBus);
this.createBuses(context, outputBus);
return context;
}
@ -224,7 +228,7 @@ export class GardenAudioGraph {
}
}
private createDelay(context: AudioContext, masterGain: GainNode): void {
private createDelay(context: AudioContext, outputBus: GainNode): void {
const delayInput = context.createGain();
const delayNode = context.createDelay(graphTuning.delayMaxSeconds);
const delayFeedback = context.createGain();
@ -250,7 +254,7 @@ export class GardenAudioGraph {
delayFeedback.connect(delayNode);
delayNode.connect(returnLowPass);
returnLowPass.connect(delayOutput);
delayOutput.connect(masterGain);
delayOutput.connect(outputBus);
this.delayInput = delayInput;
this.delayNode = delayNode;
@ -258,10 +262,10 @@ export class GardenAudioGraph {
this.delayOutput = delayOutput;
}
private createBuses(context: AudioContext, masterGain: GainNode): void {
private createBuses(context: AudioContext, outputBus: GainNode): void {
const eventBus = context.createGain();
eventBus.gain.value = graphTuning.eventBusGain;
eventBus.connect(masterGain);
eventBus.connect(outputBus);
this.eventBus = eventBus;
this.pianoBuses.clear();