Re: Low cost starter kits? (audio)

Muse <amusingmuses@xxxxxxxxx> wrote in
news:1191434805.721734.8020@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:

On Oct 3, 1:18 pm, "mnentwig" <mnent...@xxxxxxxxxxx> wrote:
Hello,

maybe a PC with a decent sound card may be a good start. At least
that's the way I'd go if I wanted to concentrate on the algorithms
side.

For example, I have an example program on my web site that can be
easily modified into a real-time guitar
effect:http://www.elisanet.fi/mnentwig/webroot/looprecord/index.html

Add
double drive=3.0;
int i; for (i=0; i < framesPerBuffer; ++i){
outputBuffer[i]=tanh(drive*inputBuffer[i]);

}

into "audioCallback" and we've got the best overdrive money can buy.
Includes free aliasing :)

Making it work on a real DSP board will only be more difficult, and
the compile cycle can't be any faster than running it straight on a
PC.

A good sound card can achieve a roundtrip latency of 6 ms, probably
less. Good enough for rock'n'roll, if you ask me.

Cheers

Markus

Thanks but no thanks Markus, I can already do this on a computer, but
I want to do it on a DSP so that I can learn about DSPs and embedded
device programming etc. If you think a guitar pedal is not a good
project for a DSP (and I can't see why not) feel free to recommend a
better use of such a DSP board, and... a board.

So, any suggestions on a good starter kit for DSP anyone?



You can use any Analog Devices EZ-KIT for this.

You can also use our dspstak 21369zx with ICE and an I/O card. This will
be more expensive but more flexible. In all of these cases, a free KIT
version of VisualDSP is included.

We also have an older solution (DSP-8300) that includes tools. It is a
credit card sized module that uses an AC-97 codec and an ADI ADSP-2186M
DSP. This would be much smaller and cheaper than an EZ-KIT. It is also
less useful as a learning tool since Blackfin and SHARC are better
choices for DSP.

Details on our web site.

Al Clark
Danville Signal Processing, Inc.
.

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