[weblacky]

Relnotes from the 1.1 tarball (more position honts):

At boot time, the input and output sample clocks on the
VigraSound board may be initialized to an inconsistent
state. This may result in distorted sound during
recording or playback. To ensure that the sample clocks
are properly initialized, toggle the input and output
rates once after boot up. This may be accomplished from
within an application by calling ALsetparams(), or an
end-user may use the Audio Control Panel apanel) to
toggle the sample rates after boot up.

The VigraSound board acts as a VME bus master during
DMA-based audio transfers. If the VigraSound board is
installed incorrectly by either not installing it in
the first (leftmost) VME slot, or if a slot is left
empty or a board to the left of the audio board does
not correctly pass daisy-chained VME signals, then the
system may crash on the first access to audio. Make
sure that the VigraSound board is in the first VME slot
to assure correct operation.

The real-time nature of audio I/O places critical
demands on the VME bus. The presence of other VME
boards on the same VME bus as the VigraSound audio
board may cause improper operation including audio
dropouts or worse. If audio performance is impaired,
the other VME bus board may need to be removed. Sirius
Video has been tested with the VigraSound board and
they are known to operate correctly together on
Onyx/Challenge systems running IRIX 5.3.