1 AUDIOTEST(1)                     User Commands                    AUDIOTEST(1)
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   3 
   4 
   5 NAME
   6        audiotest - test audio device
   7 
   8 SYNOPSIS
   9        audiotest [-2457] [-l] [-r rate] [dev] ...
  10 
  11 
  12 DESCRIPTION
  13        The audiotest utility runs a test for the named audio device (or all
  14        audio devices found on the system if none is given). The test includes
  15        playing an audio sample over each channel and measuring the rate of
  16        playback for clock drift.
  17 
  18 OPTIONS
  19        The following options are supported:
  20 
  21        -l
  22              Loop mode. The test is run in an infinite loop.
  23 
  24 
  25        -r rate
  26              Sample rate. By default 48000Hz is used.
  27 
  28 
  29        -2
  30              Stereo (2-channel) mode. This is the default mode. Playback
  31              assumes 2 channels are present.
  32 
  33 
  34        -4
  35              Quadraphonic mode (4-channel surround). The test assumes that
  36              four surround channels are present.
  37 
  38 
  39        -5
  40              Surround sound mode (5.1). The test checks the left, right,
  41              surround left, surround right, and center channels. The low
  42              frequency effects channel is not tested.
  43 
  44 
  45        -7
  46              Surround sound mode (7.1). The test checks the left, right,
  47              surround left, surround right, back surround left, back surround
  48              right, and center channels.  The low frequency effects channel is
  49              not tested.
  50 
  51 
  52 
  53        If multiple modes are specified, the last one specified is used.
  54 
  55 
  56 OPERANDS
  57        dev
  58               The path to the device to test, for example, /dev/dsp0.
  59 
  60 
  61 SEE ALSO
  62        audioconvert(1), audiorecord(1), audio(7I)
  63 
  64 BUGS
  65        audiotest has no way to detect the number of actual audio channels
  66        supported by the physical device.
  67 
  68 
  69        audiotest does not test the low-frequency effects (LFE) channel.
  70 
  71 
  72        There is no test for audio capture, volume controls, or other advanced
  73        device features.
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  76 
  77                                February 8, 2020                   AUDIOTEST(1)