audioplay(1) - NetBSD Manual Pages

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AUDIOPLAY(1)            NetBSD General Commands Manual            AUDIOPLAY(1)


NAME

     audioplay - play audio files


SYNOPSIS

     audioplay [-iqVh] [-v volume] [-b balance] [-p port] [-d device] [-f
               [-c channels] [-e encoding] [-P precision] [-s sample-rate]]
               [files ...]


DESCRIPTION

     The audioplay program copies the named audio files, or the standard input
     if no files are named, to the audio device.  The special name ``-'' is
     assumed to mean the standard input.  The input files must contain a valid
     audio header, and the encoding must be understood by the underlying
     driver.


OPTIONS

     The following options are available:

     -i      If the audio device cannot be opened, exit now rather than wait
             for it.

     -q      Be quiet.

     -V      Be verbose.

     -h      Print a help message.

     -v      Set the volume (gain) to volume.  This value must be between 0
             and 255.

     -b      Set the balance to balance.  This value must be between 0 and 63.

     -p      Set the output port to port.  The valid values of port are
             ``speaker'', ``headphone'' and ``line''.

     -d      Set the audio device to be device.  The default is /dev/sound.

     -f      Force playing, even if the format is unknown.  The -f flag can be
             used in addition with the following flags to change the number of
             channels, encoding, precision and sample rate.

     -c      when combined with the -f option, sets the number of channels to
             its argument.

     -e      when combined with the -f option, sets the encoding to its argu-
             ment.  Possible values are mulaw, ulaw, alaw, slinear, linear,
             ulinear, adpcm, ADPCM, slinear_le, linear_le, ulinear_le,
             slinear_be, linear_be, ulinear_be, mpeg_l1_stream,
             mpeg_l1_packets, mpeg_l1_system, mpeg_l2_stream, mpeg_l2_packets,
             and mpeg_l2_system.

     -P      when combined with the -f option, sets the precision to its argu-
             ment.  This value must be either 4, 8, 16, 24 or 32.

     -s      when combined with the -f option, sets the sample rate to its
             argument.  This value must be a valid value for the audio device
             or an error will be returned.


ENVIRONMENT

     AUDIOCTLDEVICE  the audio control device to be used.

     AUDIODEVICE     the audio device to be used.


EXAMPLES

     Play a raw dump taken from an audio CD ROM:

           audioplay -f -c 2 -P 16 -s 44100 -e slinear_le filename

     The audioctl(1) program can be used to show the available supported
     encodings:

           audioctl encodings


NOTES

     audioplay can be used to play Sun/NeXT audio files, and also RIFF WAVE
     audio files.  audioplay can be configured in the ``Netscape'' web browser
     as the program to use when playing audio files.


ERRORS

     If the audio device or the control device can not be opened, and error is
     returned.

     If an invalid parameter is specified, an error is returned.  The set of
     valid values for any audio parameter is specified by the hardware driver.


SEE ALSO

     audioctl(1), audiorecord(1), aria(4), audio(4), audioamd(4), auich(4),
     autri(4), auvia(4), clcs(4), clct(4), cmpci(4), eap(4), emuxki(4),
     esm(4), eso(4), ess(4), fms(4), gus(4), guspnp(4), neo(4), sb(4), sv(4),
     wss(4), yds(4), ym(4)


HISTORY

     The audioplay program was first seen in SunOS 5.  The NetBSD audioplay
     was first made available in NetBSD 1.4.


AUTHORS

     The audioplay program was written by Matthew R. Green
     <mrg@eterna.com.au>.

NetBSD 2.0                     January 13, 2002                     NetBSD 2.0