November 2009 \ Features \ Tech \ OpenStomp: Open Source, Meet the Guitar World

OpenStomp: Open Source, Meet the Guitar World

Eric Moyer’s OpenStomp effects module allows users to write and edit their sounds on a level never before granted by the guitar industry, but will people actually do it?


Premier Guitar November 2009



In the guitar world, analog purists typically look at digital proponents with a wary, disdainful eye—these are the people, after all, that believe technology can trump tradition, a touchy subject in the guitar world. Eric Moyer, the California-based creator of the open source OpenStomp—a device so unabashedly digital and computerized that many of its deepest functions require a technical degree— shrugs it off with in Huntington Beach surfer style.

“I love digital effects pedals. The sound quality of analog stuff is great, but there’s a versatility with digital stuff that I just adore,” said Moyer from his office, located a stone’s throw from the ocean. “I’m a huge fan of the Line 6 stuff—I love being able to get in there and tweak things, and there are some things that you just can’t do in analog.”


Eric Moyer
Moyer, who pays his bills with a start-up medical device company and describes himself as a “techhead, an iPhone guy,” is the sole mind behind the OpenStomp Coyote-1, a completely digital and customizable effects processor housed in an unassuming purple box.

Simply put, any user can use Moyer’s homegrown software, called OpenStomp Workbench, to build patches and assign functions to the unit’s four top-mounted knobs and two sturdy footswitches; more intrepid users—likely those with computer science degrees and an affinity for assembly programming language—can use the software to design their own effect “modules,” such as echo, delay and distortion. Those modules can then be used by anyone and strung together, virtual wire by virtual wire, into the aforementioned patches and loaded onto the unit.

If the Coyote-1 sounds like a truly boutique, niche product, aimed at techhead guitarists who would rather spend their time compiling code than evaluating boutique ODs, you’re partly right. Moyer sunk 16 months of his time into the development of the Open Stomp, and bypassed the use of a typical DSP chip for the Propellor, a multicore processor similar to the one found in a Playstation 3 (the standard DSP route, “just wasn’t interesting enough to get me out of bed in the morning and make me do it.”). That’s not to mention that the process of creating new modules for the OpenStomp requires some savvy programming skills, enough so that Moyer has been solely responsible for most of the existing modules, mostly utility modules such as choruses, tremolos and distortions, and currently numbering 15 in all.

But the brilliance and greater appeal of the Coyote-1 reveals itself in its ability to redefine how guitarists interact with the effects. While the OpenStomp system is certainly capable of standard digital tasks like aping classic overdrives and crisp delays, its greater strength lies in its ability to allow users with average computer skills to create previously unheard effects in OpenStomp Workbench, by stringing together pre-programmed modules, all in a graphical interface that resembles a paint program.


OpenStomp Workbench

“A very simple example would be to take a chorus effect and an echo effect and just chain them together, so now you get chorus and echo at the same time. But a more complex example would be if you took an LFO module and chained [its output] to the on-off function of a distortion effect. Now you get a distortion effect that cuts in and out rhythmically. And if you get enough weird low-level modules like this—LFOs, pitch detectors, volume gates—you can start to create these unique, creative things by simply chaining them together.”

“I don’t want to spend a lot of time trying to be a ‘me too’ pedal,” Moyer added. “I want to take things in different directions and try to do things that haven’t been done before. There’s merit to having chorus and distortion and delay, because people can relate to them, but it’s time to take a hard left and create some weird effects.”

In fact, it’s such a revolutionary concept that Moyer has had a hard time communicating the possibilities to guitarists, who are used to connecting effect pedals with a few inches of cabling and turning them on and off. It can take a while to mentally click, and Moyer has accepted that as his efforts have turned from design to marketing and community building.

“It’s a different paradigm than people are used to. It’s something that they haven’t been able to build before. It takes some vision to get there on your own. I don’t kid myself—if you talk about something like an effect where your distortion cuts in and out rhythmically, it’s not the kind of thing you’re going to bust out on every song. I don’t by any stretch expect to replace something like a [Line 6] POD XT Live, but there are workhorse effects in there that you could run all day onstage, and there are some bizarre things you can do with the OpenStomp that you just can’t get anywhere else. It falls into that boutique digital pedal niche.”

But for guitarists who buy into the paradigm and have some spare time and a digital aptitude, the OpenStomp platform could provide them with a new set of tools for self-expression. The Coyote-1’s open source nature gives it a wide range of capabilities, and while Moyer guessed that some more advanced features like amp modeling may be beyond the horsepower of the Propellor processor, he noted that “people keep finding new ways to pull new tricks with it, so it’s hard to say what’s truly capable in the end.”


For now, Moyer is hard at work on Mac and Linux versions of the OpenStomp Workbench—two major constituents of the open source movement—and is continuing to sell the Coyote-1, one by one through his website, to any musician curious enough to plunk down the $349 entry fee.

It seems to be spreading, slowly but steadily. The OpenStomp forum continues to attract new members, and the discussions are getting more robust, more technical. There are more ideas tossed around and more options pondered—how can I do this? Is this possible? You can literally see people beginning to engage with the technology to create brand new sounds, which was Moyer’s goal when he first came up with the project on a caffeine-drenched evening in June of 2007.

“This is kind of a jump to the left, in a fun way. I don’t expect the POD XTs of the world to disappear one day in favor of open source effects, and there’s good reason for those guys to keep their intellectual property internal. But there’s a big space in here that nobody is playing in, and there’s a lot of fun to be had,” said Moyer. “I’m not surprised the big guys haven’t gone and done it, because it’s a boutique product, but I don’t eat my dinner at night based on how these things sell, so I’m free to just try and make something cool.”

openstomp.com

     

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Comments

(14 comments) display by
UsernameComment
Ray Matuza
on 12/29/2009
It's a brilliant idea! However, guitarists as we know can be stubborn and a narrow minded lot at times, looking for instant gratification. Think about this, in the 40+ years stomp boxes have been around,our feet for the most part still hover around the basics: distortion, delay, wah with a little chorus, flange or phase thrown in for good measure.
Dan Marois
on 12/03/2009
"aimed at techhead guitarists who would rather spend their time compiling code than evaluating boutique ODs," or playing guitar? :)
TS9
on 11/17/2009
Pedals won't die, no but if people want this that's cool. But people love pedals. Stomps are cheap, fun and cool. I personally won't sit any more and scroll through edits/patches/blah to get a freaking chorus sound. Let's see where this is at in 5/10 years Greg(12 hr 49 min ago poster)

;70
Greg
on 11/17/2009
To the guy who thinks this will die out the thing is the new 24 bit d/a converters are very powerful, I'm currently running a T-Rex room mate and you can't tell its not an analogue reverb at all.
Sound processing by digital products is based on the quality of the algorithms if these are done using your ears rather than an oscilloscope then there's no reason why you can't mirror analogue effects and that’s what you get with the very best digital FX on the market today. While this product may not change the world it will make sure comercial offerings keep pushing the sound quality up.
bad dog
on 11/17/2009
U2's Edge must be drooling over this one! A little strange, but nice!
nolv
on 11/15/2009
What a great idea! @Woolie:seems that only the graphical editor is based on C#. Moreover, it seems that nothing prevents anybody to write another editor with another language.
Pedal Master
on 11/15/2009
This will die. WE guitar nuts love analog!! Knobs and cords, not patches, editing and parameters. Didn't we learn anything from the Quadraverb era?? Rack=PA pedals=guitar.
MarkinBoston
on 11/14/2009
What a great concept. I love it. I just wish the price were lower. I think it would spur sales. Also, a website that people could post code & patches to for sharing would be great. I'd love to have a clone of a Fender reverb (or DOD Grinder amp reverb, one of my faves), plus a really good echoplex type echo would be totally cool.
Dallas Hodgson
on 11/14/2009
Line6 has had a similar thing for some time - built around the Freescale Symphony DSP, as I recall. Hardware, development and all - it's based on their ToneCore pedal line. Love the look of this pedal, tho - it's nice to have an LCD display!
J
on 11/13/2009
I think it's way cool! Power back to the people. I like to f**k with electronics anyway, so those of us with such a bent should be thrilled. Better to spend our hard earned dollars on something we can really dig into than an effect pedal that does close to (or not really) what we want...



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