Opus format is newer than mp3 and has better compression than mp3 Youtube streams for nonpremium users with variable bitrate up to 160kbps in opus format. Insert a value between 0 (better) and 9 (worse) for VBR or a specific audio-quality 0 <- Specify ffmpeg/avconv audio quality, (requires ffmpeg or avconv and ffprobe or avprobe) extract-audio <- (-x) Convert video files to audio-only files v <- (-verbose) Print various debugging information Where movieTitle is the title of the video on youtube. In this case it gives you file named movieTitle.mp3 o '%(title)s.%(ext)s' <- (-output) Output filename template, w <- (-no-overtwrites) Do not overwrite filesДЄnd is present in the directory then continue with the next video) i <- (-ignore-errors) Continue on download errors,ДЇor example to skip unavailable videos in a playlist. c <- (-continue) Force resume of partially downloaded files.Д«y default, youtube-dl will resume downloads if possible.ДЄs docs state maybe it is default, but I put it to make sure it is set. Or the link to one of the songs from playlist while playing playlist (link with list word): youtube-dl -f 'bestaudio/best' -ciw -o '%(title)s.%(ext)s' -v -extract-audio -audio-format mp3 -audio-quality 0 -yes-playlist ''Д¬ommand options explanation: -f 'bestaudio/best' <- Choose the best audio format.ДЄs there is only audio format listed only the audio is downloaded. You can put a link to a playlist (link with playlist word): youtube-dl -f 'bestaudio/best' -ciw -o '%(title)s.%(ext)s' -v -extract-audio -audio-format mp3 -audio-quality 0 -yes-playlist To download audio from all movies from a channelД¬ommand is the same, but you should put link to the channel instead of link to a single video: youtube-dl -f 'bestaudio/best' -ciw -o '%(title)s.%(ext)s' -v -extract-audio -audio-quality 0 -audio-format mp3 When audio-quality is set to 0 mp3 goes up to 300kbps preserving original quality. When audio-quality is default ( 5 in 0-9 scale) mp3 bitrate is limited to 160kbps which means that some sound quality is lost during compression. Opus format is newer than mp3 and has better compression than mp3 preserving the same quality. Without this option mp3 audio-quality is set by default to 5 in 0-9 scale where 0 is the best quality and 9 the worst quality. audio-quality 0 tells youtube-dl to save audio file in the best quality (when converting to mp3). Without this option you lose some sound quality during mp3 compression. Option -audio-quality 0 is very important there! It downloads only audio (without video) and converts it to mp3. To perform this command you need ffmpeg installed (audio and video converter which youtube-dl uses for convertion) To download audio from a single movie: youtube-dl -f 'bestaudio/best' -ciw -o '%(title)s.%(ext)s' -v -extract-audio -audio-quality 0 -audio-format mp3 Do I need to pick one here? Or is the last one MP4 HD720 the best option and then convert it to MP3? What is the best choice to get the best audio file? The first five are audio only.

I want to download the best audio from the following video: I have just download youtube-dl so I can download video and audio files from youtube.

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