[sdiy] DX7 chip die photos

[Mike Bryant]

Or maybe they designed into the chip but it didn't work for some reason ?


-----Original Message-----
From: Synth-diy [mailto:synth-diy-bounces at synth-diy.org] On Behalf Of Rainer Buchty
Sent: 15 November 2021 13:28
To: Tom Wiltshire
Cc: Synth-diy
Subject: Re: [sdiy] DX7 chip die photos

On Sun, 14 Nov 2021, Tom Wiltshire wrote:

> So with a bit more “oomph” in the support processors, the DX7 could 
> have been multitimbral? Interesting possibility!

It probably was more among the lines of not having thought about it, as polytimbrality back then wasn't much of a thing apart from maybe keyboard splitting, I guess.

An ~1MHz 6303 should've provided enough juice to keep the registers updated, I guess, even with requiring 16 LFOs instead of just one.

After all, a 1MHz 6809 works wonders in the Mirage running Soundprocess OS -- and there it would even need to serve audio-rate interrupts.

Rainer
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