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fix: precise TTS word-boundary timing and remove wasted sync calculations

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- ffmpeg-service/main.py: replace ffsubsync path with exact word-boundary timing from edge_tts for TTS subtitles. Karaoke styling preserved.
- server/services/ttsSync.ts: fix word count to match TTS-cleaned text, remove artificial punctuationPause subtraction, strip punctuation tokens from count.
- server/routes/reels.ts: remove redundant ttsSyncService calls in preview/background; word_duration is ignored by Python, these only wasted TTS generations.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
This commit is contained in:
MichaelandClaude Opus 4.7 committed 2026-05-04 13:13:55 +02:00
1 parent 9ce735dc23
commit 37aba33425
3 files changed
+43 -68
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server/routes/reels.ts
+2 -22
View File
@@ -350,17 +350,7 @@ reelsRouter.post('/reels/preview', async (req: Request, res: Response) => {
console.error('Error fetching watermark configuration', e);
}
// Calculer le word_duration synchronisé si TTS activé
let finalWordDuration = wordDuration;
if (ttsEnabled && overlayText) {
try {
const sync = await ttsSyncService.calculateSyncTiming(overlayText, ttsVoice);
finalWordDuration = sync.wordDuration;
console.log(`🎯 TTS Sync (preview): ${sync.wordCount} mots, ${sync.audioDuration.toFixed(2)}s audio, word_duration=${finalWordDuration.toFixed(3)}s`);
} catch (syncErr) {
console.warn('⚠️ TTS sync failed (preview), using default word_duration:', syncErr);
}
}
const finalWordDuration = wordDuration;
// Traiter la vidéo via FFmpeg
const result = await ffmpegService.processReelFromUrl(resolveInternalUrl(media.originalUrl), {
@@ -593,17 +583,7 @@ async function processReelBackground(
console.error('Error fetching watermark configuration', e);
}
// Calculer le word_duration synchronisé si TTS activé
let finalWordDuration = wordDuration ?? 0.6;
if (ttsEnabled && overlayText && ttsVoice) {
try {
const sync = await ttsSyncService.calculateSyncTiming(overlayText, ttsVoice);
finalWordDuration = sync.wordDuration;
console.log(`🎯 TTS Sync (background): ${sync.wordCount} mots, ${sync.audioDuration.toFixed(2)}s audio, word_duration=${finalWordDuration.toFixed(3)}s`);
} catch (syncErr) {
console.warn('⚠️ TTS sync failed (background), using default word_duration:', syncErr);
}
}
const finalWordDuration = wordDuration ?? 0.6;
const ffmpegResult = await ffmpegService.processReelFromUrl(resolveInternalUrl(media.originalUrl), {
text: overlayText,