SV(4) | Device Drivers 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.

November 2, 2009 | Debian