AUDIOTEST(1) User Commands AUDIOTEST(1)


NAME


audiotest - test audio device

SYNOPSIS


audiotest [-2457] [-l] [-r rate] [dev] ...


DESCRIPTION


The audiotest utility runs a test for the named audio device (or all
audio devices found on the system if none is given). The test includes
playing an audio sample over each channel and measuring the rate of
playback for clock drift.

OPTIONS


The following options are supported:

-l
Loop mode. The test is run in an infinite loop.


-r rate
Sample rate. By default 48000Hz is used.


-2
Stereo (2-channel) mode. This is the default mode. Playback assumes
2 channels are present.


-4
Quadraphonic mode (4-channel surround). The test assumes that four
surround channels are present.


-5
Surround sound mode (5.1). The test checks the left, right,
surround left, surround right, and center channels. The low
frequency effects channel is not tested.


-7
Surround sound mode (7.1). The test checks the left, right,
surround left, surround right, back surround left, back surround
right, and center channels. The low frequency effects channel is
not tested.


If multiple modes are specified, the last one specified is used.


OPERANDS


dev
The path to the device to test, for example, /dev/dsp0.


SEE ALSO


audioconvert(1), audiorecord(1), audio(4I)

BUGS


audiotest has no way to detect the number of actual audio channels
supported by the physical device.


audiotest does not test the low-frequency effects (LFE) channel.


There is no test for audio capture, volume controls, or other advanced
device features.


February 8, 2020 AUDIOTEST(1)