man speaker-test (Commandes) - command-line speaker test tone generator for ALSA

NAME

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

SYNOPSIS

speaker-test [-D|--device FILE] [-r|--rate RATE] [-c|--channels NUM] [-f|--frequency FREQ] [-p|--period TIME] [-n|--noise TIME] [-s|--speaker 1|2]

speaker-test --help

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
-p | --period TIME
period size of TIME microseconds
-r | --rate RATE
stream of RATE Hz
-t | --test 1|2
-t1 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.

-t2 means use sine wave.

-s | --speaker 1|2
Test speaker 1 or speaker 2 only, rather than both

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.