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youtube-dl and ffmpeg download audio
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| #download | |
| youtube-dl -F <URL> # see all format | |
| youtube-dl -f <format> <URL> # download format | |
| # DASH decode | |
| ffmpeg -i input.m4a -vn -acodec copy output.m4a # Solve: writing DASH m4a. Only some players support this container. Install ffmpeg or avconv to fix this automatically. | |
| #mp3 | |
| ffmpeg -codecs help | grep 'mp3' # check mp3 codecs | |
| ffmpeg -i input.m4a -acodec libmp3lame -ab 128k output.mp3 | |
| #or | |
| ffmpeg -i input.wav -vn -ar 44100 -ac 2 -ab 192k -f mp3 output.mp3 | |
| #ref: | |
| #https://ubuntuforums.org/showthread.php?t=1614765 | |
| #http://superuser.com/questions/441361/strip-metadata-from-all-formats-with-ffmpeg | |
| #http://superuser.com/questions/837067/convert-youtube-dash-audio-youtube-dl-to-m4a-aac-dl |
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