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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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1
package.json
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@ -58,6 +58,7 @@
"@prisma/client": "^6.1.0", "@prisma/client": "^6.1.0",
"@sentry/node": "^8.47.0", "@sentry/node": "^8.47.0",
"amqplib": "^0.10.5", "amqplib": "^0.10.5",
"audio-decode": "^2.2.3",
"axios": "^1.7.9", "axios": "^1.7.9",
"baileys": "github:EvolutionAPI/Baileys", "baileys": "github:EvolutionAPI/Baileys",
"class-validator": "^0.14.1", "class-validator": "^0.14.1",

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); inputAudioStream.end(audioBuffer);
} }
const isLpcm = isURL(audio) && /\.lpcm($|\?)/i.test(audio);
return new Promise((resolve, reject) => { return new Promise((resolve, reject) => {
const outputAudioStream = new PassThrough(); const outputAudioStream = new PassThrough();
const chunks: Buffer[] = []; const chunks: Buffer[] = [];
@ -3041,7 +3043,14 @@ export class BaileysStartupService extends ChannelStartupService {
ffmpeg.setFfmpegPath(ffmpegPath.path); 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') .outputFormat('ogg')
.noVideo() .noVideo()
.audioCodec('libopus') .audioCodec('libopus')