Last Change: 2018-09-07, 16:50
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toolame − MPEG-1 layer 2 audio encoder
toolame [options] <infile> [outfile.mp3]
toolame is a very fast (6x realtime on a 550mhz celeron) MPEG-1 layer 2 audio encoder with a command-line syntax nearly identical to that of the lame MPEG-1 layer 3 audio encoder. Because of patent issues surrounding the layer 3 encoder, the ability of most mpeg audio players to play layer 2 files, and the similarity in command-line syntax, toolame makes a very good drop-in replacement for lame and other layer 3 encoders under most circumstances.
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−h, |
Show summary of options. |
−s sfrq,
input sample rate in kHz (default is 44.1).
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−a |
downmix from stereo to mono. |
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−x |
force byte-swapping of input. |
−m mode,
channel mode: s/d/j/m (default is j).
−p psy,
psychoacoustic model 1/2 (default is 1).
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−b br, |
total bitrate in kbps (default is 192). |
−v lev,
vbr mode
-5 constant bitrate file at the lowest allowable
0 raises average bitrate by about 5%
5 raises average bitrate by about 20%
10 raises average bitrate by about 50%
15 raises average bitrate by about 75%
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−f |
fast mode (turns off psy model). |
−q num,
quick mode. only calculate psy model every num frames.
−d emp,
de-emphasis n/5/c (default is n).
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−c |
mark as copyright. |
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−o |
mark as original. |
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−e |
add error protection. |
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-r |
force padding bit/frame off. |
The input file must have 16 bits per sample.
toolame was written by Michael Cheng <mikecheng AT planckenergy DOT com>.
This manual page was written by Brian Ristuccia <brianr AT osiris DOT 978 DOT org>, for the Debian project (but may be used by others under the same license as toolame itself).