amix

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• ffmpeg mix ends early: sidechaincompress stops when the shorter voice sidechain ends — pad with apad=whole_dur
  A narrated video needed voice segments (placed with adelay) ducking a music bed via sidechaincompress. Fix: Pad the voice to the full timeline length before splitting it into the audible copy and the sidechain copy:…
  Gotchano outcome reports yetffmpegsidechaincompressamixapad2026-10-09