Real-time guitar effects with Raspberry Pi, Pd and Arduino

Here’s a video demonstrating real-time guitar effects processed on a Raspberry Pi running Pure Data. The effects are triggered by a home-made Arduino-based stompbox.

I have already written a general introduction on how to set up your RPi and install PD on it. I’ll be writing more posts about this in the coming days.

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15 Responses to Real-time guitar effects with Raspberry Pi, Pd and Arduino

  1. sershei says:

    Yes, now is more weird, because from the post on https://guitarextended.wordpress.com/2013/01/27/real-time-guitar-effects-with-raspberry-pi-pd-and-arduino/ as also from the youtube video on http://www.youtube.com/watch?v=NwJNeouLqgQ&feature=player_embedded the video appears unavailable but from the email that youtube has sent me with your reply the I can see the video just fine… I’m from Uruguay, South America Congratullations for the device, I love it Regards

    2013/1/27 Guitar Extended

    > ** > guitarextended posted: “Here’s a video demonstrating real-time guitar > effects processed on a Raspberry Pi running Pure Data. The effects are > triggered by a home-made Arduino-based stompbox. I’ll be writing more posts about this in the > “

  2. Pingback: RPi as guitar effects processor : Installing and configuring Pd | Guitar Extended

  3. Patrick says:

    Nice work! Do you think it could handle amp/cab impulse responses?

  4. Pingback: Raspberry Pi multi-effects : Overview of the setup | Guitar Extended

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  6. Ambitious Young 'Un says:

    I’m curious, is there any reason you didn’t use the Arduino to run the processing for the guitar effects? I’m planning on making a multi-pedal somewhat similar to yours, but I was hoping to make it without using a microprocessor, to make it a little bit cheaper.

    • When I started this project two years ago there weren’t any fancy Arduino boards, so it wasn’t possible to do any quality audio directly on it. The new board they are about to release (like the ones they are making in partnership with Intel) might change that, but it still wasn’t possible to use an Arduino to process the sound of a guitar in a decent way (in terms of sound quality and effects variety).
      If you want good sound and flexibility a better route would be to use something like a Raspberry Pi and connect your buttons directly to its GPIO to get rid of the Arduino layer.

      • Ambitious Young 'Un says:

        Okay. I was wondering whether the chip in the Arduino would be powerful enough. Do you know of any compact Raspberry Pi -like processors? Ultimately, what I’d like to be able to do is enclose the entire pedal circuit inside of my guitar cavity, and use force sensors to activate the effects, all without making any major modifications to my guitar. Thanks so much for all your help!

      • See my latest post for some alternatives to the RPi.

  7. Pingback: Raspberry Pi and realtime audio effects / digital signal processing? | DL-UAT

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