Pedal to USB

cpsmusic · 14th October 2010, 12:48 PM

Hi,

I'm a computer programmer (mainly multimedia), and I've dabbled in analog electronics (I've built a couple of valve guitar amps and distortion pedals as well as other music gear). I'm also a guitarist.

I'd like to build a distortion "pedal/interface" that I can use for recording. More specifically, I'd like to add a USB port to the pedal/interface.

I think I'm OK with the pedal and the computer aspects of the project but
I haven't done much in the way of digital electronics - how difficult would this be to do?

I was thinking of doing something like running a runoffgroove amp simulator (Thor?) into their Condor cabinet simulator and then into a TI PCM2906B and finally into the computer via either the SPDIF input or the USB port.

Would this be (a) easy, (b) hard, or (c) forget it?

Any suggestions?

Cheers,

Chris

Nigel Goodwin · 15th October 2010, 08:34 PM

I would suggest probably (c) - USB is VERY, VERY complicated, both at the PC side and the external unit.

benb · 15th October 2010, 10:57 PM

That TI chip looks like it would work, but you would need USB drivers on the PC side, bla bla bla.

But it appears to do the same thing as any off-the-shelf USB audio recording interface that includes drivers and probably even recording software (and if not, Audacity works). Is there something special you want to do with the signal once it's in the computer? It's possible to do some real-time (or near-real-time with all the buffering and stuff) processing on audio by writing VST plug-ins.

That way you can concentrate more on whatever audio processing code you want to do, and less on system stuff that's already been done.

Jarno · 16th October 2010, 11:13 AM

Sounds like a great idea, but I'd just rehouse one of those Lightsnake cables:
Lightsnake

Or, build it into a guitar: USB guitar diy

cpsmusic · 16th October 2010, 11:31 AM

Quote:

Originally Posted by Jarno

Sounds like a great idea, but I'd just rehouse one of those Lightsnake cables:
Lightsnake

Or, build it into a guitar: USB guitar diy

Thanks, I think that the Lightsnake cable will do the job.

Cheers,

Chris

TechnoBeaver · 17th October 2010, 08:58 PM

I have a Stealthplug, works OK.

14th October 2010, 12:48 PM	#1
cpsmusic diyAudio Member Join Date: Oct 2010	Pedal to USB Hi, I'm a computer programmer (mainly multimedia), and I've dabbled in analog electronics (I've built a couple of valve guitar amps and distortion pedals as well as other music gear). I'm also a guitarist. I'd like to build a distortion "pedal/interface" that I can use for recording. More specifically, I'd like to add a USB port to the pedal/interface. I think I'm OK with the pedal and the computer aspects of the project but I haven't done much in the way of digital electronics - how difficult would this be to do? I was thinking of doing something like running a runoffgroove amp simulator (Thor?) into their Condor cabinet simulator and then into a TI PCM2906B and finally into the computer via either the SPDIF input or the USB port. Would this be (a) easy, (b) hard, or (c) forget it? Any suggestions? Cheers, Chris

15th October 2010, 08:34 PM	#2
Nigel Goodwin diyAudio Member Join Date: Jul 2005 Location: North Derbyshire	I would suggest probably (c) - USB is VERY, VERY complicated, both at the PC side and the external unit. __________________ Nigel Goodwin

16th October 2010, 11:13 AM	#4
Jarno diyAudio Member Join Date: Sep 2002 Location: Rosmalen, The Netherlands	Sounds like a great idea, but I'd just rehouse one of those Lightsnake cables: Lightsnake Or, build it into a guitar: USB guitar diy __________________ Oemptempa petoempetapap

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15th October 2010, 10:57 PM	#3
benb diyAudio Member Join Date: Apr 2010	That TI chip looks like it would work, but you would need USB drivers on the PC side, bla bla bla. But it appears to do the same thing as any off-the-shelf USB audio recording interface that includes drivers and probably even recording software (and if not, Audacity works). Is there something special you want to do with the signal once it's in the computer? It's possible to do some real-time (or near-real-time with all the buffering and stuff) processing on audio by writing VST plug-ins. That way you can concentrate more on whatever audio processing code you want to do, and less on system stuff that's already been done.

17th October 2010, 08:58 PM	#6
TechnoBeaver diyAudio Member Join Date: Apr 2010 Location: Ontario	I have a Stealthplug, works OK.

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