[sdiy] Atmel "Dream Synthesizer"

Theo t.hogers at home.nl
Sat Aug 14 08:45:16 CEST 2004


Hi Tim
Have been looking at these Holtek music uCs, kind of worried about
availability.
IMO These things could be either pretty interesting or pretty boring.
Verdict depends on some questions I could not find a answer for in the
(limited) data sheets that are on the Holtek site.

Think they may pretty well suited for things like a one IC drum computer,
drawbar organ or wavetable synth.
But cause the sample end point is part of the sample data and the way the
loop point operates,
it only gets interesting if the loop point calculation works modulo.
The idea is; jump far enough back and you jump forward, question is how far
can you jump.

The other thing is, is there a possibility to do FX?, doesn't seem that way
:(
Maybe some chorus or delay, offering a voice to the rompler demon gods.
However there is mention of special data modus for use with external
(sample) data, but no how, why, when and where.

As you have development boards, do you have the full documentation?
If so, could you shine some light on the above, especially the loop point
behavior.
(or let me have a peek and find out my self)?

Regards
Theo





----- Original Message -----
From: Tim Johnson <ifixaudio at hotmail.com>
To: <synth-diy at dropmix.xs4all.nl>
Sent: Saturday, August 14, 2004 6:19 AM
Subject: RE: [sdiy] Atmel "Dream Synthesizer"


> Hi Tim, Group,
> I was also wondering if anyone has worked with these Holtek devices.
> I have development boards but unfortunately can't write code.
>
> http://www.holtek.com/products/mcu_5.htm
>
> Jim
>
> >From: Tim Parkhurst <tparkhurst at siliconbandwidth.com>
> >To: synth-diy at dropmix.xs4all.nl
> >Subject: [sdiy] Atmel "Dream Synthesizer"
> >Date: Fri, 6 Aug 2004 16:18:18 -0700
> >
> >It's Atmel, it's a synthesizer, it's digital, and I thought maybe this
> >might
> >be of interest (especially to the digital/DSP/wavetable crowd). The name
is
> >pretty goofy but they've got some nifty development boards, including
some
> >with built in A/D and D/A converters. Yes, it looks like it's aimed
mostly
> >at sound cards and cell phones (no flame threads, please), but it still
> >looked interesting. Maybe the sound cards and devel systems could be
> >hacked.
> >
> >http://www.atmel.com/dyn/products/devices.asp?family_id=618
> >
> >http://www.atmel.com/dyn/products/tools.asp?family_id=618
> >
> >
> >
> >Tim (wants a rack with 10 MIDI controlled cell phones) Servo
> >
> >"Imagination is more important than knowledge." - Albert Einstein
> >
>
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