SV(4)                     OpenBSD Programmer's Manual                    SV(4)

NAME
     sv - S3 SonicVibes device driver

SYNOPSIS
     sv* at pci? dev ? function ?
     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

           mixerctl -w outputs.spatial=off

     command.


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.

SEE ALSO
     audio(4),  mixer(4)

HISTORY
     This driver is based on the eap driver by Lennart Augustsson.  The sv de-
     vice driver appeared in NetBSD 1.4.

OpenBSD 2.6                      July 13, 1998                               1
