Hello, a complete newbie here.

Is there such a thing: a DSP box or module that I can program my own effects (filters)into and run a signal though it?

In other words, a DSP board that has analogue in/out and a USB. I will connect it to my computer via USB, use some software like Max MSP to create my own filter,  download it to the box, then I will run some music though it and it will manipulate the signal, applying the filter and sending out. Basically, an unlimited affects box/board.

thank you,
Herman



Rochey

have a look for some dedicated VST effects processors out there.

muse research make some.

/r
Expat Audio Home: http://www.expataudio.com

Kingston

Is there such a thing: a DSP box or module that I can program my own effects (filters)into and run a signal though it?

In other words, a DSP board that has analogue in/out and a USB.

Yes there is.

http://line6.com/tcddk/

[edit]

and a far more flexible and powerful solution,

http://www.parallax.com/propeller/

example DSP gadget:

http://www.instructables.com/id/Pocket-Chiptunes-Player/
« Last Edit: March 02, 2013, 06:36:41 AM by Kingston »

AMZ-FX

OpenStomp Coyote-1

http://www.openstomp.com/

Looks like it is still available for purchase. They have a forum with additional info and code.

-Jack

Free Schematics and Projects - http://www.muzique.com/
My Guitar Effects Blog - http://www.muzique.com/news/
Follow me on Twitter - http://twitter.com/#!/AmzFx

dmlandrum

The OpenStomp actually uses the Parallax Propeller. The Propeller isn't really the best chip for DSP, as it lacks a hardware multiply, but people have made it work. The Prop 2 is adding hardware multiply plus a few other niceties, like single-cycle instructions and higher clock rates, but the release date is still in the future.

And I wasn't aware of the Line6 option. That's interesting.
Darren Landrum

Be comforted that in the face of all aridity and disillusionment
And despite the changing fortunes of time,
There is always a big future in computer maintenance.

Interesting suggestions, thank you.

One way I wanted to interface the effects box is through something like "Puredata" or "MaxMSP" I will post my findings.

Herman

mhelin

Use any Cortex-M4 microcontroller, there are couple of evaluation boards with them though they don't usually have analog audio I/O.

For an example NGX LPC4330-Xplorer board:

http://ngxtech.com/knowledgebase/index.php?title=NGX_LPC4330-Xplorer_LPC-Xpresso_User_Manual

For better sound quality you must DIY the converter part though. Too bad there aren't (m)any quality CODEC boards available, usual ones use cheap WM8731 CODEC. TI and Cirrus have some EVM's that might be better.
Mikko

dmlandrum

I'm really interested in the Cortex M4 for this kind of application, too.

There's a board called the Teensy 3.0 that has a 48MHz Cortex M4 on it for $19:

http://www.pjrc.com/store/teensy3.html

It can be programmed in the Arduino environment, apparently. At 48MHz, it's not the most powerful option, but for $19, it doesn't have to be.
Darren Landrum

Be comforted that in the face of all aridity and disillusionment
And despite the changing fortunes of time,
There is always a big future in computer maintenance.

Andy Peters

Use any Cortex-M4 microcontroller, there are couple of evaluation boards with them though they don't usually have analog audio I/O.

The Silicon Labs ARM Cortex-M0 parts have an I2S interface built in. I think some of the NXP ARMs do too.

Of course you might as well just go with a DSP.

-a
"On the Internet, nobody can hear you mix a band"

The ST Microelectronics STM32M4F has I2S, SPI and I2C. And a floating point unit (that's the F in Cortex M4F). They make a nice board for it as well.

As for writing something in PD or Max and running it on a microcontroller, AFAIK that's not possible.


 

Related Topics

  Subject / Started by Replies Last post
5 Replies
658 Views
Last post January 29, 2019, 10:47:40 AM
by Xilef
0 Replies
310 Views
Last post August 19, 2019, 05:30:50 PM
by sahib
9 Replies
807 Views
Last post August 28, 2019, 11:11:52 PM
by fazer
39 Replies
1034 Views
Last post February 22, 2020, 10:37:03 AM
by JohnRoberts