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Handle mono wav #10

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Handle mono wav #10

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2b7257b
set the channel interpretation on the AudioContext to speakers so that
Jul 13, 2023
bed9490
fix formatting by removing the tabs
Jul 13, 2023
1260c59
more formatting on the comment line
Jul 13, 2023
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16 changes: 16 additions & 0 deletions src/main/resources/META-INF/resources/frontend/src/audio-stream-player.js
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Original file line number Diff line number Diff line change
Expand Up @@ -41,6 +41,17 @@ export const AudioStreamPlayer = (() => {

this._multiChannelGainNode = new MultiChannelGainNode(this._gainNode);

// Set channel interpretation to speakers so that a mono audio source is output on two channels
console.log('setting channel interpretation to speakers');

const oscillator = this._context.createOscillator();
const gainNode = this._gainNode;

oscillator.connect(gainNode);
gainNode.connect(this._context.destination);

oscillator.channelInterpretation = "speakers";

// Could use StereoPannerNode instead, but it is missing in Safari :-(
this._pannerNode = this._context.createPanner();
this._pannerNode.panningModel = 'equalpower';
Expand Down Expand Up @@ -229,6 +240,11 @@ export const AudioStreamPlayer = (() => {
audio => {
const currentChunkTimestamp = Math.max(0, this._position - this._chunkOverlapTime);
player.buffer = audio;

//console.log('switching to 2-channel mono: ', audio.length);
//audio.output.L = input.M;
//audio.output.R = input.M;

if (this._tryResume && timestamp === currentChunkTimestamp) {
this._tryResume();
}
Expand Down