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feat(audio): support LPCM and fix waveform distortion

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edisoncm-ti
2025-06-08 20:41:59 -03:00
parent 614ad7cbdf
commit 44e0ff2250
2 changed files with 11 additions and 1 deletions
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11
src/api/integrations/channel/whatsapp/whatsapp.baileys.service.ts
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@@ -3024,6 +3024,8 @@ export class BaileysStartupService extends ChannelStartupService {
inputAudioStream.end(audioBuffer);
}
const isLpcm = isURL(audio) && /\.lpcm($|\?)/i.test(audio);
return new Promise((resolve, reject) => {
const outputAudioStream = new PassThrough();
const chunks: Buffer[] = [];
@@ -3041,7 +3043,14 @@ export class BaileysStartupService extends ChannelStartupService {
ffmpeg.setFfmpegPath(ffmpegPath.path);
ffmpeg(inputAudioStream)
let command = ffmpeg(inputAudioStream);
if (isLpcm) {
this.logger.verbose('Detected LPCM input – applying raw PCM settings');
command = command.inputFormat('s16le').inputOptions(['-ar', '24000', '-ac', '1']);
}
command
.outputFormat('ogg')
.noVideo()
.audioCodec('libopus')