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evo-dubbing-tts-synthesis

Synthesizes target-language speech from text using Kokoro TTS, with speed/duration control to fit precise time windows. Handles SRT parsing, text extraction, and produces WAV segments.

tasks-evolved/multilingual-video-dubbing/environment/skills/evo-dubbing-tts-synthesis/SKILL.md

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Sep 10, 2026
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# evo-dubbing-tts-synthesis

Synthesizes target-language TTS audio fitted to SRT time windows using Kokoro.

## Key Functions

- `parse_srt_file(path)` - Parse SRT file, return list of dicts with index, text, start_sec, end_sec, duration_sec
- `read_target_language(path)` - Read target language code from file
- `synthesize_segment(text, lang_code, voice, speed)` - Generate audio array using Kokoro
- `fit_audio_to_window(text, lang_code, voice, target_duration)` - Synthesize and adjust speed to fit window
- `generate_tts_segments(segments_srt, source_srt, target_srt, lang_code, output_dir)` - Full pipeline

## Usage