Hot answers tagged youtube
You can convert to audio only formats using youtube-dl itself, although it still downloads the video and then converts it. To do this, use -x or --extract-audio to the command, for example: youtube-dl -x http://www.youtube.com/watch?v=0iyeUcFKRv4&feature=c4-overview&list=UU1KPy3cAAj0i0RIFC_SzjMg
youtube-dl --help explains how: Post-processing Options: -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", ...
A command line alternative to download and immediately convert to a desired format is to send a file downloaded with cclive to avconv with the cclive option --exec. Examples: Download video, then extract the audio track to keep the original encoding: cclive -f best <videolink> --exec "avconv -i '%n' -acodec copy <name>.<extension>" ...
YouTube Center is excellent user script, which works accross browsers, doesn't involve bloating your OS with ton of Youtube downloaders unless you're a strictly 320 kbps person for your audio files. Besides, you have Handbrake at your disposal which involves bit of a manual work but will do exactly what you want. :)
Maybe this won't help you, but I had similar problem - my Tuxguitar didn't make any sound while Youtube was on. I solved it by installing Fluidsynth and Qsynth, then making some random changes in Qsynth (and then Tuxgutar) settings. I found it (also with instructions) here, on the bottom of the page. http://ubuntuforums.org/showthread.php?t=2132761
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