how do i capture system sounds

like say ime watching a youtube vid and i just want the audio

if there is none then is there a program for extracting audio from video(without changing the quality)

1. Download the Video.
2. type this commnd

Quote:

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mplayer -dumpaudio video.flv -dumpfile audio.mp3

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OR. Audio in online video is of poor quality so you can use ffmeg insted of mplayer

Quote:

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ffmpeg -i video.flv -ab 128 -ar 44100 audio.mp3

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ok thanks, but now ime wondering, how do i do that to mp4 files cause not all youtube vids use flv

you can also use AVIDemux
Its easier than CLI.

ok thanks for the info