japa − jack or alsa perceptual analyser
japa {-h|-A|-J} [options]
Japa (JACK and ALSA Perceptual Analyser), is a ’perceptual’ or ’psychoacoustic’ audio spectrum analyser. Possible uses include spectrum monitoring while mixing or mastering, evaluation of ambient noise, and (using pink noise), equalisation of PA systems. For more information see /usr/share/doc/japa/README.gz.
One out of −A and −J must be given.
−h |
Show summary of options. |
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−J |
Use jack. |
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−A |
Use alsa. |
−d <device>
If using alsa: Specify alsa device. Defaults to hw:0.0.
−r <rate>
If using alsa: Specify sample frequency. Defaults to 48000.
−p <period>
If using alsa: Specify period size. Defaults to 1024.
−n <nfrags>
If using alsa: Specify number of fragments. Defaults to 2.
japa was written by Fons Adriaensen <fons AT kokkinizita DOT net>.
This manual page was written by Helmut Grohne <helmut AT subdivi DOT de>, for the Debian project (but may be used by others).