🔇(summary) make ffmpeg quiet

In the refactoring of the prepare pipeline, ffmpeg
was added in non quiet mode.

CHANGELOG.md

@@ -8,11 +8,14 @@ and this project adheres to
 
 ## [Unreleased]
 
-
 ### Changed
 
 - 🐛(agents) fix bug when closing metadata-collector
 
+### Fixed
+
+- 🔇(summary) make ffmpeg quiet #1404
+
 ## [1.18.0] - 2026-06-03
 
 ### Added

src/summary/summary/core/file_service.py

@@ -224,6 +224,8 @@ def extract_audio_from_video(media_info: MediaInfo) -> Path:
 
     extract_command = [
         "ffmpeg",
+        "-v",
+        "quiet",
         "-i",
         str(media_info.path),
         "-vn",