SOUND BOARD CHIPSET: INTERWAVE
by Advanced Micro Devices (AMD)
Last update: 12/26/97
- Phone:
- ??
- Fax:
- ??
- BBS:
- ??
- e-mail:
- rjm@io.org for Robert Manley
- web:
- http://www.amd.com (AMD),
http://www.io.org/~rjm (Robert Manley)
- Type:
- Wavetable
- OS/2 Drivers:
- Available (shareware, US$30)
- Drivers from:
-
http://www.polsci.wvu.edu/sander,
http://www.io.org/~rjm
- Boards using this chipset include:
- Gravis UltraSound (GUS) PnP & PnP Pro;
Core Dynamics DynaSonix series; Reveal WavExtreme Pro (SC800); STB SoundRage;
probably others
- Comments:
- This chipset was apparently designed jointly by AMD and Advanced
Gravis, and represents the next stage in development of the Gravis
technology. Boards using this chipset typically have a wavetable ROM
and also accept RAM for expanded or higher-quality wavetable sample
sets. To the best of my knowledge, neither AMD nor any of the
companies producing boards based on this chipset provide OS/2 driver
support, but the shareware Manley GUS drivers do (version 1.20 or
higher, in a public beta test as of 11/9/96). These drivers do not
currently use the boards' on-board ROMs, so you'll need RAM (1-2MB
should be adequate for most MIDI files) to get MIDI playback, as well
as disk-based sample sets which should come with the board or which
are available from Gravis. VTD does work with these drivers on a GUS
PnP board. Aside from the GUSes and one report of partial success
with a Reveal SC800, I don't know which board(s) the Manley drivers
support. These drivers support OS/2, DOS, and Windows sound, though
they limit the user to three MIDI device startups until registered.
Also, Windows sound works only with the 1.0-level drivers from Gravis;
the 2.0-level Windows drivers that Gravis has recently released
reportedly do not work under Win-OS/2. Sander van Leeuwen, the
current maintainer of the Manley drivers, is working on full Win-OS/2
drivers for all GUS and InterWave-based boards, but I have no
information on when this may be finished. SoundBlaster emulation for
DOS programs is not yet completed. The InterWave chipset is unusual in
that it supports true full duplex operation. As mentioned in the Technology section, though, this doesn't do
much good for VTD operation. It does reportedly work with Internet
telephony applications. The Interwave chipset appears to be on the
way out; of the four manufacturers listed above, only one (Core Dynamics) appears still to be making
Interwave-based sound cards.
Copyright © 1996, 1997 Rod Smith, rodsmith@rodsbooks.com
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