How can I extract audio from a YouTube video?

Question

I would like to hear Linus' talk about Git from youtube on my way to work, which means I'm looking for an elegant way to extract .wav or .mp3 from a YouTube video.

Answer 1

I have had success with video2mp3.net – it is free and online!

Answer 2

Add the YouTube to MP3 firefox add-on.

Answer 3

I used the Online FLV convertor for this . Just give the url and select way of output you want .

Answer 4

install Youtube-dl and FFmpeg then use the following commandline

Download the video

youtube-dl http://www.youtube.com/watch?v=YOURVIDEO 

Then convert the video using ffmpeg

ffmpeg -i YOURVIDEO.flv .wav

Answer 5

mplayer x.flv -vo null -ao pcm
lame -V2 audiodump.wav talk.mp3

This will extract the audio in wav format and encode it to a VBR mp3 with lame.

Answer 6

Youtube Downloader

It includes a video>audio converter.

Answer 7

In Safari 6 for OS X you can open the video from the web inspector and download it by pressing ⌥↩ on the location bar.

1. Enable the develop menu from the advanced preferences
2. Press ⌥⌘I and open or reload the page for the video
3. Double-click the videoplayback resource under the other folder
4. Focus the location bar and press ⌥↩ (option-return)

You can extract the audio without re-encoding with ffmpeg. It can be installed with Homebrew.

ffmpeg -i video.mp4 -acodec copy sound.aac

Answer 8

Here's my review on YouTube to audio converters.

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video2mp3 comes in first, closely followed by abcyoutube. Both cache popular videos, so there's 0 conversion time.

Answer 9

EDIT: This answer was originally intended to another question (that got merged into this question), where the user was the owner of the videos. This will not work if you don't own the videos yourself.

1. Go to http://www.youtube.com/my_videos,
2. Click on the down arrow besides the video title
3. choose "download as MP4" (or other file format if applies)
4. use software installed on your computer to extract the audio from the file

(I don't own a mac, so I can't recommend a mac software for this final step).

Answer 10

VDownloader

The reviewers didn't find anything against it.

Answer 11

I don't trust the software like vixy.net, I think they track all my youtube activity.

convert2mp3.net is my favorite now, they converted a rare video (so the video wasn't cached) to mp3 in less than one minute.

listentoyoutube.com needed ca. 5-6 minutes for the same video.

video2mp3.net needed more than two hours to extract the sound from the same video and they want to accept a java applet.