larssand a17054d8d0 Switch the video guide narrator from espeak-ng to Piper (neural TTS) ...

espeak-ng's formant synthesis was reported as barely intelligible. Piper is a small
local neural TTS with the same offline, no-cloud-service properties but far more
natural speech; its default WAV output format already matched what the sync pipeline
assumed, so only the synthesis call itself needed to change.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>

2026-09-11 17:47:31 +02:00

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