and then download it. You can lower the sound quality if you want to process it faster. Below is a code sample. --- import subprocess # Define input and output paths input_path = "/mnt/data/test.mp4" output_path = "/mnt/data/test_audio_ffmpeg.mp3" # Run ffmpeg command to extract audio # -y: overwrite without asking # -vn: no video # -ab 64k: audio bitrate (lower for faster, smaller file) command = [ "ffmpeg", "-i", input_path, "-vn", "-ab", "64k", "-ar", "44100", # sample rate "-y", output_path ] # Execute the command subprocess.run(command, stdout=subprocess.PIPE, stderr=subprocess.PIPE) # Return output path output_path mp4をmp3にして /mnt/dataでやりとりして ffmpegつかって 中知ってる前提で プロンプトを書く