mirror of
https://github.com/alsa-project/alsa-utils
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b7ed45a015
Signed-off-by: Erik Ackermann <kurterikackermann@gmail.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
182 lines
4.8 KiB
Groff
182 lines
4.8 KiB
Groff
.\" -*- nroff -*-
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.\" macros
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.de EX \" Begin Example
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. IP
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. ft CW
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. nf
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. ne \\$1
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..
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.de EE \" End Example
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. ft P
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. fi
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. PP
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..
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.TH SPEAKER\-TEST 1 "April 2nd, 2011" speaker\-test
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.SH NAME
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speaker\-test \- command\-line speaker test tone generator for ALSA
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.SH SYNOPSIS
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.B speaker\-test [\-options]
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.SH DESCRIPTION
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\fBspeaker\-test\fP generates a tone that can be used to test the speakers of a computer.
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\fBspeaker\-test\fP by default will test the \fIdefault\fP device. If you
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want to test another sound device you will have first to get a list of
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all of the sound cards in your system and the devices associated with
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those cards. Notice that there might be for example, one device for
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analog sound, one for digital sound and one for HDMI sound.
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To get the list of available cards and devices you can run \fBaplay \-L\fR.
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.P \fBaplay\fR's output will be similar to this one:
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.nf
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$ aplay \-L
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null
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Discard all samples (playback) or generate zero samples (capture)
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default:CARD=ICH5
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Intel ICH5, Intel ICH5
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Default Audio Device
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front:CARD=ICH5,DEV=0
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Intel ICH5, Intel ICH5
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Front speakers
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surround40:CARD=ICH5,DEV=0
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Intel ICH5, Intel ICH5
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4.0 Surround output to Front and Rear speakers
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(...)
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.fi
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.P Each of the devices is listed in the beginning of the definition so,
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in the above example, there are four devices listed: null, default, front
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and surround40. So, if you want to test the last device you can
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run \fBspeaker\-test \-Dsurround40:ICH5 \-c 6\fR. The \fB\-c\fR option will
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indicate that the six audio channels in the device have to be tested.
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.SH OPTIONS
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.TP
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\fB\-c\fP | \fB\-\-channels\fP \fINUM\fP
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\fINUM\fP channels in stream
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.TP
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\fB\-D\fP | \fB\-\-device\fP \fINAME\fP
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PCM device name \fINAME\fP
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.TP
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\fB\-f\fP | \fB\-\-frequency\fP \fIFREQ\fP
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sine wave of \fIFREQ\fP Hz
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.TP
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\fB\-\-help\fP
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Print usage help
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.TP
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\fB\-b\fP | \fB\-\-buffer\fP \fITIME\fP
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Use buffer size of \fITIME\fP microseconds.
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When 0 is given, use the maximal buffer size.
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The default value is 0.
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.TP
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\fB\-p\fP | \fB\-\-period\fP \fITIME\fP
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Use period size of \fITIME\fP microseconds.
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When 0 is given, the periods given by \fB\-P\fP option is used.
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The default value is 0.
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.TP
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\fB\-P\fP | \fB\-\-nperiods\fP \fIPERIODS\fP
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Use number of periods. The default value is 4.
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.TP
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\fB\-r\fP | \fB\-\-rate\fP \fIRATE\fP
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stream of \fIRATE\fP Hz
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.TP
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\fB\-t\fP | \fB\-\-test\fP \fBpink\fP|\fBsine\fP|\fBwav\fP
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\fB\-t pink\fP means use pink noise (default).
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Pink noise is perceptually uniform noise -- that is, it sounds like every frequency at once. If you can hear any tone it may indicate resonances in your speaker system or room.
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\fB\-t sine\fP means to use sine wave.
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\fB\-t wav\fP means to play WAV files, either pre-defined files or given via \fB\-w\fP option.
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You can pass the number from 1 to 3 as a backward compatibility.
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.TP
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\fB\-l\fP | \fB\-\-nloops\fP \fICOUNT\fP
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Specifies the number of loops. Zero means to run infinitely.
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When \fB\-s\fP option below with a valid channel is given, \fBspeaker\-test\fP will perform
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always a single-shot without looping.
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.TP
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\fB\-s\fP | \fB\-\-speaker\fP \fICHANNEL\fP
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Do a single-shot speaker test for the given channel. The channel number starts from 1.
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The channel number corresponds to left, right, rear-left, rear-right, center, LFE,
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side-left, side-right, and so on.
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For example, when 1 is passed, it tests the left channel only once rather than both channels
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with looping.
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.TP
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\fB\-w\fP | \fB\-\-wavfile\fP \fIFILE\fP
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Use the given WAV file for the playback instead of pre-defined WAV files.
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.TP
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\fB\-W\fP | \fB\-\-wavdir\fP \fIDIRECTORY\fP
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Specify the directory containing WAV files for playback.
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The default path is \fI/usr/share/sounds/alsa\fP.
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.TP
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\fB\-m\fP | \fB\-\-chmap\fP \fIMAP\fP
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Pass the channel map to override.
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If the playback in a specific channel order or channel positions is
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required, pass the channel position strings to this option.
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.TP
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\fB\-X\fP | \fB\-\-force-frequency\fP
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Allow supplied \fIFREQ\fP to be outside the default range of 30-8000Hz. A minimum of 1Hz is still enforced.
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.SH USAGE EXAMPLES
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Produce stereo sound from one stereo jack:
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.EX
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speaker\-test \-Dplug:front \-c2
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.EE
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Produce 4 speaker sound from two stereo jacks:
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.EX
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speaker\-test \-Dplug:surround40 \-c4
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.EE
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Produce 5.1 speaker sound from three stereo jacks:
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.EX
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speaker\-test \-Dplug:surround51 \-c6
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.EE
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To send a nice low 75Hz tone to the Woofer and then exit without touching any other speakers:
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.EX
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speaker\-test \-Dplug:surround51 \-c6 \-s1 \-f75
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.EE
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To do a 2\-speaker test using the spdif (coax or optical) output:
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.EX
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speaker\-test \-Dplug:spdif \-c2
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.EE
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Play in the order of front\-right and front-left from the front PCM
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.EX
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speaker\-test \-Dplug:front \-c2 \-mFR,FL
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.EE
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.SH SEE ALSO
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.BR aplay(1)
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.SH AUTHOR
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The speaker\-test program was written by James Courtier-Dutton.
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Pink noise support was added by Nathan Hurst.
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Further extensions by Takashi Iwai.
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