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Command: sv | Section: 4 | Source: OpenBSD | File: sv.4
SV(4) FreeBSD Kernel Interfaces Manual SV(4)
NAME
sv - S3 SonicVibes audio device
SYNOPSIS
sv* at pci?
audio* at sv?
DESCRIPTION
The sv driver provides support for S3 SonicVibes (S3-617) chipset-based
cards. Disabling the SRS 3-D spatial feature of the chip is recommended
for higher quality audio. This can be done in software by issuing the
following command:
$ mixerctl outputs.spatial=off
SEE ALSO
audio(4), intro(4), pci(4)
HISTORY
This driver is based on the eap(4) driver by Lennart Augustsson. The sv
device driver first appeared in OpenBSD 2.6.
BUGS
The "FM" DAC, wavetable synth, and MIDI port are not supported.
Recording at a rate different from playback is supported by the chip but
not the driver. The mixer does not allow control of reverb, digital
loopback, or 3-D SRS features. The chip does not support exact record
speeds (it seems) of 11025Hz, 22050Hz, and so on, used by Windows audio.
Usually, the actual record is rate is around +/- 50Hz of the specified.
FreeBSD 14.1-RELEASE-p8 November 2, 2009 FreeBSD 14.1-RELEASE-p8