Archive of the former Yahoo!Groups mailing list: Korg Poly800/EX800 Users

previous by date index next by date
previous in topic topic list next in topic

Subject: Re: [korgpolyex] Re: What would everybody think if...

From: Michael Hawkins <korgpolyex800@...>
Date: 2017-01-31

Can you change the MIDI to use a higher speed? 31,250 is too slow. I'd like to speed that up for starters. Probably close to 100Kbps. Even 250Kbps if possible.
If I drive this "new" synth with an STM32 then I'd like to use high speed so that there's no lag.

If I were to treat each chip as a single voice and allow for expanding by simply plugging in more.
The new upgrade would allow initially adding just 2 of these chips giving you two playing modes.
A mono mode where you have a five DCO paraphonic filter.
A single mode where you have ten note polyphony and two filters (one on each group of five). Similar to Poly original.
A double mode where you have 5 notes polyphony and two filters. Similar to Poly original.

And then you would be able to add more chips up to 8 (maybe even 16).
And then the modes would get very powerful including a 5 DCO per note mode giving 8 (or 16) note polyphony and a filter per voice.
And possible some others in between.

Since the chips are $15 that means that the voices for the kit would be $30 initially and then you add as your budget allows. You have to spend $120USD to get to eight chips. That is potentially 40 voices in pure mono mode. And combinations such as 8x5, 7x5, 6x5, 5x6, 4x10, 3x12, 2x20.

With all of that, then how would feel about the sound quality limitations?
Does the sound quality reach the level of the Poly? If not, on a scale of 1 to 10, how far short do these things fall?
Is the filter bad enough to discount using these chips entirely?
What if we put the Poly filter on the output stage after all of these chips so that we can use the Poly filter to overcome the limitations of the chip filters?

/Mike



From: "bperkins211@... [korgpolyex]" <korgpolyex@yahoogroups.com>
To: korgpolyex@yahoogroups.com
Sent: Monday, January 30, 2017 8:31 PM
Subject: [korgpolyex] Re: What would everybody think if...

 
I have two of those dsp-g1 chips.  Just recently was messing around with one.
I have mixed feelings on the sound quality.
The filter isnt all that great and the EG's are not very intuitive to use.

I do have the source code for them..  can easily change the MIDI to any ttl serial info to change parameters..

I designed the GUI for him when he first came out with it on a hackster kickstarter site..


/Blaine