31–40 of 50 posts
Is there some mute button I'm missing? I've tried with both Chrome and Edge to play the pre-recorded riffs for a few different pedals and am not getting any sound. I verified I have volume on my end with a youtube video.
I have so many questions as to how they're handling controlling knob changes! From the pictures it looks like they've yanked the pots out and hooked the boards up to their rig, which raises more questions. This is something I've tried myself, and it's not trivial. Digipots won't work in the signal path and are noisy and imprecise, so companies that do this (there are very few!) like Chase Bliss use vactrols. Using th…
Most of them are controlled with Digipots, but yeah indeed it was not easy to get it working for all the different setups.
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Did you run into noise issues? I actually haven't tried a digipot in a signal path (they do work great for other controls like LFOs and the delay time on a PT2399), but everything I've read online has told me to avoid it. I'm not hearing any in the demos so clearly it's workable!
The digipotis were actually one of the hardest problems for this project. Additional to the many pot values and different tapers, you need to also cover a wide variety of voltages that can even be centered around zero (it is an audio signal after all), so you need to be able to handle negative voltage. DigiPots also have a capacitance, so when you have to replace high values like 1M-Ohm you will wind up with a low pa…
Earlier quoted context omitted.
Most of them are controlled with Digipots, but yeah indeed it was not easy to get it working for all the different setups.
Did you run into noise issues? I actually haven't tried a digipot in a signal path (they do work great for other controls like LFOs and the delay time on a PT2399), but everything I've read online has told me to avoid it. I'm not hearing any in the demos so clearly it's workable!
The relais modules are on the outside of the case, but on the left you will see a flatband cable (digital) run inside of the case, where the digipoti modules will sit. So all analog signals never leave the original case and the metal housing shields all kinds of external interference.
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Yikes.
Yeah. Makes you wonder why the PI was even needed.
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It's a inhouse design with a PCM3060 as audio codec.
After doing my research: Thomann is a very large reseller (1700 employees according to wikipedia) in musical equipment. What's the story behind how a reseller got into designing custom raspberry pi add-on boards to demo third party pedals online?
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After doing my research: Thomann is a very large reseller (1700 employees according to wikipedia) in musical equipment. What's the story behind how a reseller got into designing custom raspberry pi add-on boards to demo third party pedals online?
Thomann are a brilliant company, old school customer service, competitive prices, great selection. I hate that Brexit has made buying from them not worth it.
https://thumbs.static-thomann.de/thumb/thumb1000x/pics/image...
to
https://thumbs.static-thomann.de/thumb/thumb1000x/pics/image...
I know exactly what you mean with "old school customer service". I really hope these niched retailers stray strong against Amazon.
My method was to have users record samples, re-amp them through each pedal, record the output and then make that available back to the user.
It wasn't live/realtime. And the pedal setting has to be pre-defined.
It worked, but it was limited. My intention was to use it for rare / vintage / analog pedals.
Fun project, but this execution is waaaaay better. Very glad someone got it.
