Annotation of src/usr.bin/audioctl/audioctl.1, Revision 1.8
1.8 ! aaron 1: .\" $OpenBSD: audioctl.1,v 1.7 1999/06/05 01:21:18 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.
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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
1.1 provos 44: .Op Fl f Ar file
45: .Op Fl n
46: .Fl a
1.6 aaron 47: .Nm audioctl
1.1 provos 48: .Op Fl f Ar file
49: .Op Fl n
1.5 aaron 50: .Ar name
51: .Op Ar ...
1.6 aaron 52: .Nm audioctl
1.1 provos 53: .Op Fl f Ar file
54: .Op Fl n
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:
! 72: .Bl -tag -width "-w name=value"
! 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
! 102: The audio control device to use.
1.1 provos 103: .Sh FILES
104: .Bl -tag -width /dev/audioctl
105: .It Pa /dev/audioctl
1.8 ! aaron 106: default audio control device
1.1 provos 107: .El
108: .Sh SEE ALSO
109: .Xr mixerctl 1 ,
110: .Xr audio 4 ,
111: .Xr sysctl 8
112: .Sh HISTORY
113: The
114: .Nm
115: command first appeared in
116: .Nx 1.3 .