NAME    [Toc]    [Back]

     sv - S3 SonicVibes audio device driver

SYNOPSIS    [Toc]    [Back]

     sv* at pci? dev ? function ?
     audio* at sv?

DESCRIPTION    [Toc]    [Back]

     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.

SEE ALSO    [Toc]    [Back]

     audio(4), intro(4), pci(4)

HISTORY    [Toc]    [Back]

     This  driver  is  based  on the eap(4) driver by Lennart Augustsson.  The sv
     device driver appeared in OpenBSD 2.6.

BUGS    [Toc]    [Back]

     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.

OpenBSD     3.6                           July      13,      1998