원하는 시간 길이(1.0sec), 음량(13/18/20dB)의 사운드를 생성

  admin☠ ffmpeg -f lavfi -i "sine=frequency=10:duration=1.0" -t 1.0 ~/Desktop/wav/sine10Hz.wav
  admin☠ ffmpeg -i sine10Hz.wav -af "volume=20dB" -t 1.0 sine10Hz-20db.mp3
  admin☠ ffmpeg -i sine10Hz.wav -af "volume=18dB" -t 1.0 sine10Hz-18db.mp3
  admin☠ ffmpeg -i sine10Hz.wav -af "volume=13dB" -t 1.0 sine10Hz-13db.mp3
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mac.automator

2019-02-13 18:11

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