From: Richard Atkinson (rga24_at_cantab.net)
Date: 2002-09-09 11:48:09
I have tracked down the author of the SFX Sound Expander design. Here's an
email she wrote about the history of the SFX series products.
Richard
---------- Forwarded message ----------
Date: Mon, 9 Sep 2002 10:33:38 +0100
From: James Srinivasan
To: rga24_at_cantab.net
Subject: FW: Sound things
> -----Original Message-----
> From: Lyndsay Williams
> Sent: 09 September 2002 10:32
> To: James Srinivasan
> Subject: RE: Sound things
>
>
> James,
>
> Thanks for this.
>
>
> History: I designed a sound sampler for Sinclair Spectrum
> computer in 1982, demonstrated it to Richard Watts who
> contracted for Music Sales Ltd (London) who then sold the
> design to Commodore.
>
>
> http://www.funet.fi/pub/cbm/schematics/cartridges/c64/sfx/sfx-sch.gif
> was designed by me and Richard Watts, we were the first
> people to use Yamaha chip and I know I designed the circuit
> as there was a timing error in keyboard interface and Ic2!
>
> I designed the hardware for the sound expander and sound
> sampler done for Commodore and some of the early software,
> Music Maker, Sound Studio, Sound Expander .
>
> I didn't know the Commodore SFX was priced high, they
> certainly sold a lot and we did a series of products for
> Commodore for several years.
>
>
> Interesting to see
> http://www.floodgap.com/retrobits/ckb/secret/cbm-sfx-int-better.jpg
Again, this was the version we did before I decided the PC "might" be a
standard for entertainment as well as business apps. Nobody had done a
sound card for PC until then (certainly Apple et al) - 1987, but if
anyone want to correct me that is fine. I checked with the original
company Richard Watts Associates where I was contracted to last year to
verify this.
Feeel free to pass this email on.
Lyndsay
-----Original Message-----
From: James Srinivasan
Sent: 09 September 2002 09:46
To: Lyndsay Williams
Subject: Sound things
While talking about sound card things to one of my friends over the
weekend, I mentioned your early work on FM synths. He's interested in
the area himself and was wondering if you know who designed this
cartridge:
http://www.funet.fi/pub/cbm/schematics/cartridges/c64/sfx/sfx-sch.gif
Other relevant links:
http://www.floodgap.com/retrobits/ckb/secret/sfx.html
http://www.floodgap.com/retrobits/ckb/secret/cbm-sfx-better.jpg
http://www.floodgap.com/retrobits/ckb/secret/cbm-sfx-int-better.jpg
Thanks,
James
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