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The Advanced Linux Sound Architecture (ALSA) - utilities
0cfe406618
Alsabat reports error when noise above threshold be detected.
Use either of the options below to designate the threshold. (e.g.
if the ratio of noise to signal is 5%, the snr is about 26dB.)
--snr-db <value in dB>
--snr-pc <value in %>
The noise detection is performed in time domain. On each period
of the sine wave being analyzed, alsabat substracts a clean sine
wave from the source, calculates the RMS value of the residual,
and compares the result with the threshold. At last, alsabat
returns the number of periods with noise above threshold. 0 is
returned when the source is clean.
Signed-off-by: Lu, Han <han.lu@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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|---|---|---|
| alsa-info | ||
| alsaconf | ||
| alsactl | ||
| alsaloop | ||
| alsamixer | ||
| alsaucm | ||
| amidi | ||
| amixer | ||
| aplay | ||
| bat | ||
| iecset | ||
| include | ||
| m4 | ||
| po | ||
| seq | ||
| speaker-test | ||
| topology | ||
| utils | ||
| .gitignore | ||
| acinclude.m4 | ||
| ChangeLog | ||
| configure.ac | ||
| COPYING | ||
| gitcompile | ||
| INSTALL | ||
| Makefile.am | ||
| README | ||
| TODO | ||
Advanced Linux Sound Architecture - Utilities ============================================= This package contains the command line utilities for the ALSA project. The package can be compiled only with the installed ALSA driver and the ALSA C library. alsaconf - the ALSA driver configurator script alsactl - an utility for soundcard settings management aplay/arecord - an utility for the playback / capture of .wav,.voc,.au files amixer - a command line mixer alsamixer - a ncurses mixer amidi - a utility to send/receive sysex dumps or other MIDI data iecset - a utility to show/set the IEC958 status bits You may give a look for more information about the ALSA project to URL http://www.alsa-project.org. Jaroslav Kysela <perex@perex.cz>