Man Page

Manual Section... (1) - page: speaker-test

 

NAME

speaker-test - command-line speaker test tone generator for ALSA  

SYNOPSIS

speaker-test [-options]

 

DESCRIPTION

speaker-test generates a tone that can be used to test the speakers of a computer.

 

OPTIONS

-c | --channels NUM
NUM channels in stream

-D | --device NAME
PCM device name NAME

-f | --frequency FREQ
sine wave of FREQ Hz

--help
Print usage help

-b | --buffer TIME
Use buffer size of TIME microseconds. When 0 is given, use the maximal buffer size. The default value is 0.

-p | --period TIME
Use period size of TIME microseconds. When 0 is given, the periods given by -P option is used. The default value is 0.

-P | --nperiods PERIODS
Use number of periods. The default value is 4.

-r | --rate RATE
stream of RATE Hz

-t | --test pink|sine|wav
-t pink means use pink noise (default).

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.

-t sine means to use sine wave.

-t wav means to play WAV files, either pre-defined files or given via -w option.

You can pass the number from 1 to 3 as a backward compatibility.

-l | --nloops COUNT

Specifies the number of loops. Zero means to run infinitely.

When -s option below with a valid channel is given, speaker-test will perform always a single-shot without looping.

-s | --speaker CHANNEL
Do a single-shot speaker test for the given channel. The channel number starts from 1. The channel number corresponds to left, right, rear-left, rear-right, center, LFE, side-left, side-right, and so on.

For example, when 1 is passed, it tests the left channel only once rather than both channels with looping.

-w | --wavfile
Use the given WAV file for the playback instead of pre-defined WAV files.

-W | --wavdir
Specify the directory containing WAV files for playback. The default path is /usr/share/sounds/alsa.

 

USAGE EXAMPLES

Produce stereo sound from one stereo jack:

  speaker-test -Dplug:front -c2

Produce 4 speaker sound from two stereo jacks:

  speaker-test -Dplug:surround40 -c4

Produce 5.1 speaker sound from three stereo jacks:

  speaker-test -Dplug:surround51 -c6

To send a nice low 75Hz tone to the Woofer and then exit without touching any other speakers:

  speaker-test -Dplug:surround51 -c6 -s1 -f75

 

AUTHOR

The speaker-test program was written by James Courtier-Dutton. Pink noise support was added by Nathan Hurst. Further extensions by Takashi Iwai.


 

Index

NAME
SYNOPSIS
DESCRIPTION
OPTIONS
USAGE EXAMPLES
AUTHOR

This document was created by man2html, using the manual pages.
Time: 15:26:21 GMT, June 11, 2010

Leave a Reply

You must be logged in to post a comment.