Question I have is, which audio interface would people recommend, I see behringer is highly recommended, but that seems to have an output for headphones, I guess this is what I really want to do,I want to output the raspberry pi to my twin reverb, so I was thinking more in the lines of ART USB Dual Tube Pre, but its a tad bit more expensive then I'm willing to fork, I already have an Apogee Duet 2 (super expensive) which works awesome, but I have a gut feeling will not work with the raspberry pi due to its Apple bias....at any rate, i basically want my raspberry pi to be a looper more than all the other effects, but i would like to have those effects as well if possible...I guess I was wondering if someone can give me advice as to what audio interface will work with raspberry pi and be able to output it to a guitar amp.... so i can use it more like a real live effects pedal... (I will be using the Korg nano controller to trigger the effects, just need to know whats a good USB sound card/audio interface for the raspberry pi..I'm just looking for an audio interface that will be good for outputing to a guitar amp.... and at a cheaper price... hoping around 50 bucks... if its even possible...Try the Behringer guitar link or a clone - they work fine with it. Let me know if you need any more help!you'll need a preamp since your guitar output is pretty low.I knew I should have gotten an amp with an fx loop. So you'll have to get creative there. Raspberry Pi model B+. Then your record() function becomes pretty hairy because you'll have to write it yourself. This DIY Guitar Pedal project is for guitarists, hackers, and programmers that want to learn about digital signal processing, effects, synthesizers, and experiment without deep knowledge of DSP, electronics, or hardcore programming. Treat the pedal as a button:Programming You'll want to put NOOBS on a flash drive and just use a regular Linux distro. as When you have a big project with embedded stuff, I like splitting it up into smaller things so that it can be tackled more easily.Preamp. :(I'd be concerned about timing and performance.

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Every time you're done recording, add each value of the sound being recorded to the sound that's being played.If you don't have a library to do this, you may be able to read the analog data directly from your microphone. You should just setup NOOBS and take it from there, plenty of tutorials online :)Audio out. Music has always been driven forward in part by the technology used to make it. You can continually read data from your microphone and store it in an array, then pipe that data to your audio out, and you might be able to get something.On the arduino this might be easier because you have 10-bit analog input pins (the rpi is strictly digital). That should work. That way you can play on top of your loop.Your script itself should be running in a while() loop and have two different states, RECORDING and PLAYING. I thought you were planning on programming this yourself.Yeah, just install NOOBS, run the default linux distro and install the program you linked. You might have to read a GPIO pin and emulate a keystroke accordingly. Boss RC-30 looper pedal

Tbh, I'd never thought of building a pedal with a raspberry pi mostly cuz it seems overkill, although for a looping pedal it solves the memory issue of where do you store the samples (I might eventually try building this :P). I started to tinker in pure data, and writing a little blog about it - it might help you get started on the hardware side. The site may not work properly if you don't If you do not update your browser, we suggest you visit Press J to jump to the feed. Raspberry PI as a guitar Looper/effects pedal (Advice for Audio Interface) So I've been reading quite a bit about this, I'm really interested in this project. Make sure you can get audio outputted from that linux module through the headphone jack!Good luck, dude! You can bypass this step by using another pedal as your raspberry pi source, but it'd be much better if you're able to have the preamp built.RPi audio input. That would solve all of my problems. The easiest route will be to purchase a cheap USB sound card. They sell tiny ones for <$20 on amazon.Get a jack converter and try it out.

At first I thought I could somehow save money by doing this. It should periodically detect the pedal state, and flip to RECORDING or PLAYING accordingly.First detect when the pedal changes (otherwise you might hold down your pedal and switch between states rapidly)Then you can have an if statement in your script, if PEDAL and state eq RECORDING, then state = PLAYING. Installing the OS and getting the program you found to run smoothly. However, I am really interested in seeing if I can get this to work at all. Archived. Here’s how to make a little pedal for electric guitar. That's going to be pretty advanced. I'd recommend building some sort of true bypass box with buffers on the effected side to match the input/output impedence of the interface to your rig - these things aren't normally designed to go into a guitar amp.What software were you planning to use?