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Annotation of src/usr.bin/audioctl/audioctl.1, Revision 1.12

1.12    ! aaron       1: .\" $OpenBSD: audioctl.1,v 1.11 2000/11/21 13:58:06 aaron Exp $
1.4       provos      2: .\" $NetBSD: audioctl.1,v 1.7 1998/04/27 16:55:23 augustss Exp $
1.1       provos      3: .\" Copyright (c) 1997 The NetBSD Foundation, Inc.
                      4: .\" All rights reserved.
                      5: .\"
                      6: .\" Author: Lennart Augustsson
                      7: .\"
                      8: .\" Redistribution and use in source and binary forms, with or without
                      9: .\" modification, are permitted provided that the following conditions
                     10: .\" are met:
                     11: .\" 1. Redistributions of source code must retain the above copyright
                     12: .\"    notice, this list of conditions and the following disclaimer.
                     13: .\" 2. Redistributions in binary form must reproduce the above copyright
                     14: .\"    notice, this list of conditions and the following disclaimer in the
                     15: .\"    documentation and/or other materials provided with the distribution.
                     16: .\" 3. All advertising materials mentioning features or use of this software
                     17: .\"    must display the following acknowledgement:
                     18: .\"        This product includes software developed by the NetBSD
                     19: .\"        Foundation, Inc. and its contributors.
                     20: .\" 4. Neither the name of The NetBSD Foundation nor the names of its
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                     24: .\" THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
                     25: .\" ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
                     26: .\" TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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                     36: .Dd May 4, 1997
                     37: .Dt AUDIOCTL 1
                     38: .Os
                     39: .Sh NAME
                     40: .Nm audioctl
                     41: .Nd control audio device
                     42: .Sh SYNOPSIS
1.6       aaron      43: .Nm audioctl
1.11      aaron      44: .Op Fl n
1.1       provos     45: .Op Fl f Ar file
                     46: .Fl a
1.6       aaron      47: .Nm audioctl
1.11      aaron      48: .Op Fl n
1.1       provos     49: .Op Fl f Ar file
1.5       aaron      50: .Ar name
                     51: .Op Ar ...
1.6       aaron      52: .Nm audioctl
1.11      aaron      53: .Op Fl n
1.1       provos     54: .Op Fl f Ar file
                     55: .Fl w
1.5       aaron      56: .Ar name=value
                     57: .Op Ar ...
1.1       provos     58: .Sh DESCRIPTION
1.7       aaron      59: The
1.1       provos     60: .Nm
                     61: command displays or sets various audio system driver variables.
1.5       aaron      62: If a list of variables is present on the command line,
1.1       provos     63: .Nm
                     64: prints the current value of those variables for the specified device.
1.8       aaron      65: By default,
1.1       provos     66: .Nm
1.8       aaron      67: operates on the
                     68: .Pa /dev/audioctl
                     69: device.
1.1       provos     70: .Pp
1.8       aaron      71: The options are as follows:
1.10      aaron      72: .Bl -tag -width Ds
1.8       aaron      73: .It Fl a
                     74: Print all device variables and their current values.
                     75: .It Fl w Ar name=value
                     76: Attempt to set the specified variable
                     77: .Ar name
                     78: to
                     79: .Ar value .
                     80: .It Fl f Ar file
                     81: Specify an alternative audio control device.
                     82: .It Fl n
                     83: Suppress printing of the variable name.
                     84: .El
1.1       provos     85: .Sh EXAMPLES
                     86: To set the playing sampling rate to 11025 you can enter
1.8       aaron      87: .Pp
1.1       provos     88: .Dl audioctl -w play.sample_rate=11025
1.8       aaron      89: .Pp
1.1       provos     90: Note that many of the variables that can be inspected and changed
1.8       aaron      91: are reset when the device is opened.
                     92: This can be circumvented like so:
                     93: .Pp
1.1       provos     94: .Dl (cat file.au; audioctl -f /dev/stdout -a) > /dev/audio
1.8       aaron      95: .Pp
1.1       provos     96: or
1.8       aaron      97: .Pp
1.1       provos     98: .Dl (audioctl -f /dev/stdout -w blocksize=1024; cat file.au) > /dev/audio
1.8       aaron      99: .Sh ENVIRONMENT
                    100: .Bl -tag -width AUDIOCTLDEVICE
                    101: .It Ev AUDIOCTLDEVICE
1.9       aaron     102: Audio control device to use.
                    103: .El
1.1       provos    104: .Sh FILES
                    105: .Bl -tag -width /dev/audioctl
                    106: .It Pa /dev/audioctl
1.8       aaron     107: default audio control device
1.1       provos    108: .El
                    109: .Sh SEE ALSO
                    110: .Xr mixerctl 1 ,
                    111: .Xr audio 4 ,
                    112: .Xr sysctl 8
                    113: .Sh HISTORY
                    114: The
                    115: .Nm
                    116: command first appeared in
                    117: .Nx 1.3 .