Some questions about the Delfina DSP

[golem]

Karlos wrote:
Hi,

Despite having no real use for one I'm actually tempted to get a delfina DSP for the spare 1200. However, I'm curious about what the 56002 on the card is actually used for.

Hi Karlos, I posted a link a while back when I was thinking about getting a Delfina. But a much better and guaranteed to work development system all round is the Sound-art Chameleon. http:\\www.chameleon.synth.net
Be warned though DSP math is uber-geek. I think you'd like it  :-D

[Dragster]

I'd be willing to pay for an updated-bug-free delfina.library too!

I'd be awesome!

D.

[bloodline]

<--- Is that Vince Clarke and Eric Radcliffe?





oh... that chameleon rack unit looks cool!!!

[Karlos]

golem wrote:
Be warned though DSP math is uber-geek. I think you'd like it  :-D

It isn't that bad, really. It looks it when you see it formally expressed, but in the end it's all pretty much down to multiply-accumulate :-)

Last DSP stuff I did was on a Zilog 16-bit DSP.

[golem]

bloodline wrote:
<--- Is that Vince Clarke and Eric Radcliffe?

Yes. Circa Erasure - Wonderland when they used a bank of CZ-101s sequenced by BBC micro.
Is your name bloodline because of the Recoil/Alan Wilder LP?
[/hijack thread]

[bloodline]

golem wrote:

bloodline wrote:
<--- Is that Vince Clarke and Eric Radcliffe?

Yes. Circa Erasure - Wonderland when they used a bank of CZ-101s sequenced by BBC micro.

Hmmm... Judging by Vince's hair I assumed it was from the Assemby period :-)

Is your name bloodline because of the Recoil/Alan Wilder LP?
[/hijack thread]

Indeed it is! New Album Subhuman out soon ;-)

[Karlos]

Ok, we've established that the clockport Delfina is almost useless for my original idea since it doesn't have the bandwidth to support multiple streams at 44kHz.

However, it looks like it could manage around 5 - 6 mono 22kHz 16-bit source streams before total bus saturation which means it might be able to serve as a cut down sampler. There are also various lossy 8-bit delta encodings one could apply to the source data increase that again, giving a more respectible polyphony.

The second idea I had might still be ok, which was to investigte the possiblility of a tiny softsynth that runs entirely on the DSP (it has several useful lookup tables in ROM) and simply controlled by signals from the CPU that are ultimately raised by MIDI input. The clockport has more than ample bandwidth for this.