-n, --netrc use .netrc authentication data
## Post-processing Options:
- --extract-audio convert video files to audio-only files (requires
+ -x, --extract-audio convert video files to audio-only files (requires
ffmpeg or avconv and ffprobe or avprobe)
--audio-format FORMAT "best", "aac", "vorbis", "mp3", "m4a", or "wav";
best by default