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beep(1) FreeBSD General Commands Manual beep(1) NAME beep - play a beep sound SYNOPSIS beep [-F frequency] [-D duration_ms] [-r sample_rate_hz] [-d oss_device] [-g gain] [-B] [-h] DESCRIPTION The beep utility is used to playback a beep on the soundcard. The options are as follows: -F Sets the center frequency of the beep in Hz. The default is 440 Hz . -D Sets the duration of the beep in milliseconds. The default is 150 ms . -d Sets the soundcard to use. The default is /dev/dsp . -r Sets the soundcard samplerate in Hz. The default is 48000 Hz. -g Sets the waveform gain, between 0 and 100 inclusively. The default is 75. -B Runs the beep utility in the background. -h Display summary of options. EXAMPLES Playback default beep sound using /dev/dsp . $ beep SEE ALSO mixer(3), sound(4), HISTORY The beep utility first appeared in FreeBSD 14.0. AUTHORS Hans Petter Selasky <hselasky@FreeBSD.org> FreeBSD 14.0-RELEASE-p11 November 4, 2021 FreeBSD 14.0-RELEASE-p11