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Use target smoothing for continuous spatial audio

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This commit is contained in:
Jage9
2026-02-22 21:27:27 -05:00
parent 3d741b358a
commit 6c453d56ff
4 changed files with 9 additions and 6 deletions
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2
client/public/version.js
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@@ -1,5 +1,5 @@
// Maintainer-controlled web client version.
// Format: YYYY.MM.DD Rn (example: 2026.02.20 R2)
window.CHGRID_WEB_VERSION = "2026.02.22 R191";
window.CHGRID_WEB_VERSION = "2026.02.22 R192";
// Optional display timezone for timestamps. Falls back to America/Detroit if unset/invalid.
window.CHGRID_TIME_ZONE = "America/Detroit";

3
client/src/audio/audioEngine.ts
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@@ -30,6 +30,7 @@ type SoundSpec = {
type OutputMode = 'stereo' | 'mono';
const SPATIAL_RAMP_SECONDS = 0.2;
const SPATIAL_TIME_CONSTANT_SECONDS = SPATIAL_RAMP_SECONDS / 3;
export class AudioEngine {
private audioCtx: AudioContext | null = null;
@@ -301,7 +302,7 @@ export class AudioEngine {
const gainValue = mix?.gain ?? 0;
const listenGain = Number.isFinite(peer.listenGain) ? Math.max(0, peer.listenGain as number) : 1;
const panValue = mix?.pan ?? 0;
peer.gain.gain.linearRampToValueAtTime(gainValue * listenGain, this.audioCtx.currentTime + SPATIAL_RAMP_SECONDS);
peer.gain.gain.setTargetAtTime(gainValue * listenGain, this.audioCtx.currentTime, SPATIAL_TIME_CONSTANT_SECONDS);
if (peer.panner) {
const resolvedPan = this.outputMode === 'mono' ? 0 : Math.max(-1, Math.min(1, panValue));
peer.panner.pan.setValueAtTime(resolvedPan, this.audioCtx.currentTime);

5
client/src/audio/itemEmitRuntime.ts
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@@ -28,6 +28,7 @@ const ITEM_EMIT_BASE_GAIN = 1;
const SUBSCRIBE_PRELOAD_SQUARES = 5;
const UNSUBSCRIBE_HYSTERESIS_SQUARES = 8;
const SPATIAL_RAMP_SECONDS = 0.2;
const SPATIAL_TIME_CONSTANT_SECONDS = SPATIAL_RAMP_SECONDS / 3;
/** Maps a 0-100 speed control to playback-rate range used by emitted audio. */
function resolveEmitPlaybackRate(raw: unknown): number {
@@ -224,10 +225,10 @@ export class ItemEmitRuntime {
const gainValue = mix?.gain ?? 0;
const panValue = mix?.pan ?? 0;
const emitVolume = volumePercentToGain(item.params.emitVolume, 100);
output.gain.gain.linearRampToValueAtTime(gainValue * emitVolume, audioCtx.currentTime + SPATIAL_RAMP_SECONDS);
output.gain.gain.setTargetAtTime(gainValue * emitVolume, audioCtx.currentTime, SPATIAL_TIME_CONSTANT_SECONDS);
if (output.panner) {
const resolvedPan = this.audio.getOutputMode() === 'mono' ? 0 : Math.max(-1, Math.min(1, panValue));
output.panner.pan.linearRampToValueAtTime(resolvedPan, audioCtx.currentTime + SPATIAL_RAMP_SECONDS);
output.panner.pan.setTargetAtTime(resolvedPan, audioCtx.currentTime, SPATIAL_TIME_CONSTANT_SECONDS);
}
}
}

5
client/src/audio/radioStationRuntime.ts
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@@ -166,6 +166,7 @@ type RadioSpatialConfig = {
const SUBSCRIBE_PRELOAD_SQUARES = 5;
const UNSUBSCRIBE_HYSTERESIS_SQUARES = 8;
const SPATIAL_RAMP_SECONDS = 0.2;
const SPATIAL_TIME_CONSTANT_SECONDS = SPATIAL_RAMP_SECONDS / 3;
export class RadioStationRuntime {
private readonly sharedRadioSources = new Map<string, SharedRadioSource>();
@@ -296,10 +297,10 @@ export class RadioStationRuntime {
});
const gainValue = mix?.gain ?? 0;
const panValue = mix?.pan ?? 0;
output.gain.gain.linearRampToValueAtTime(gainValue, audioCtx.currentTime + SPATIAL_RAMP_SECONDS);
output.gain.gain.setTargetAtTime(gainValue, audioCtx.currentTime, SPATIAL_TIME_CONSTANT_SECONDS);
if (output.panner) {
const resolvedPan = this.audio.getOutputMode() === 'mono' ? 0 : Math.max(-1, Math.min(1, panValue));
output.panner.pan.linearRampToValueAtTime(resolvedPan, audioCtx.currentTime + SPATIAL_RAMP_SECONDS);
output.panner.pan.setTargetAtTime(resolvedPan, audioCtx.currentTime, SPATIAL_TIME_CONSTANT_SECONDS);
}
}
}