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ffmpeg silenceremove audio debian docker speech regression

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ffmpeg 5.1 silenceremove with stop_periods=-1 + stop_silence cuts speech, not just long pauses (Debian 12 apt ffmpeg)

On ffmpeg 5.1 (Debian bookworm's apt package), silenceremove=...:stop_periods=-1:stop_duration=1.5:stop_threshold=-50dB:stop_silence=0.5 removes 50-1000 ms chunks inside speech even when the clip has no 1.5 s pause, so playback sounds sped up in spots. ffmpeg 9.0.1 with the identical filter removes nothing. Check the ffmpeg version in your container, not on your laptop.

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