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Ripping a Single Audio Stream from a File or DVD
This entry is part of a series, Efficient Audio and Video Encoding in Linux Command Line»
Valid for Fedora 10.
First get stream information and look which streams are available.
ffmpeg -i [INPUT].avi
When we have an avi (mpeg, mov, mp4) or another simple multimedia file with a single audio track:
ffmpeg -i [INPUT].avi -vn -acodec -ao pcm:fast:file=audio.wav -vc null -vo null
When we have an avi (mp4, mkv) or another multimedia file with multiple audio tracks (use -map option):
ffmpeg -i [INPUT].avi -vn -map 0:1 -acodec -ao pcm:fast:file=audio.wav -vc null -vo null
Ripping a 5.1 ac3 audio track form a multimedia file into a native ac3 format without re-encoding:
ffmpeg -i [INPUT].avi -vn -acodec ac3 -ac 6 -ab 384K -map 0:1 audio.ac3
Ripping an audio track from a DVD:
mplayer dvd:// -v | grep "audio stream" # find audio stream ids mplayer title.vob -ao pcm:file=audio.wav -vc dummy -aid 128 -vo null
Post-processing of a PCM file:
normalize audio.wav
PCM (2 channels) to ipod’s aac:
neroAacEnc -if audio.wav -of audio.m4a
PCM to MP3:
lame -h audio.wav audio.mp3
Example of direct ripping into an mp3 file from a multimedia file:
ffmpeg -i [INPUT].mkv -vn -acodec libmp3lame -ac 2 -ab 192K audio.mp3
Entries in this series:
- Create Video Preview Thumbnails with Ffmpeg
- Mencoder Two-Pass Encoding with Mpeg4 Codec
- Convert Folder with flac Files to mp3
- Multiplex Audio and Video Streams
- Create DVD MPEG file from AVI with Mencoder
- Convert Single APE File to m4a Ipod-Playable Files on Linux
- Fixing Wrong or Different Frame Rate of a Video File and Container
- Ripping a Single Audio Stream from a File or DVD
- ffmpeg with aac support in Fedora 12
May 31st, 2009 in
Audio Encoding, How-Toes, Linux | tags: ac3, avi, command line, convert, demux, encode audio, Fedora 10, how-to, ipod, Linux, mkv, mov, mp3, mp4, mpeg, multiple track, rip, single track
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