xref: /freebsd/usr.bin/beep/beep.1 (revision e9e8876a4d6afc1ad5315faaa191b25121a813d7)
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2.\" Copyright (c) 2021 Hans Petter Selasky <hselasky@FreeBSD.org>
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24.\" $FreeBSD$
25.\"
26.Dd November 4, 2021
27.Dt beep 1
28.Os
29.Sh NAME
30.Nm beep
31.Nd play a beep sound
32.Sh SYNOPSIS
33.Nm
34.Op Fl F Ar frequency
35.Op Fl D Ar duration_ms
36.Op Fl r Ar sample_rate_hz
37.Op Fl d Ar oss_device
38.Op Fl g Ar gain
39.Op Fl B
40.Op Fl h
41.Sh DESCRIPTION
42The
43.Nm
44utility is used to playback a beep on the soundcard.
45.Pp
46The options are as follows:
47.Bl -tag -width "-f device"
48.It Fl F
49Sets the center frequency of the beep in Hz.
50The default is 440 Hz .
51.It Fl D
52Sets the duration of the beep in milliseconds.
53The default is 150 ms .
54.It Fl d
55Sets the soundcard to use.
56The default is /dev/dsp .
57.It Fl r
58Sets the soundcard samplerate in Hz.
59The default is 48000 Hz.
60.It Fl g
61Sets the waveform gain, between 0 and 100 inclusively.
62The default is 75.
63.It Fl B
64Runs the
65.Nm
66utility in the background.
67.It Fl h
68Display summary of options.
69.El
70.Sh EXAMPLES
71.Pp
72Playback default beep sound using /dev/dsp .
73.Bl -tag -width Ds -offset indent
74.It $ beep
75.El
76.Sh SEE ALSO
77.Xr mixer 3 ,
78.Xr sound 4 ,
79.Sh HISTORY
80The
81.Nm
82utility first appeared in FreeBSD 14.0.
83.Sh AUTHORS
84.An Hans Petter Selasky Aq Mt hselasky@FreeBSD.org
85