PiSound for Video Synth

Pisound
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Hello, I did install @okyeron EYESY on RasPi4 8GB w/ Pisound and it’s working very well! Thanks to @okyeron and to the Blokas community for the support.

I have some experience with Linux, Arduino and C, plus the Google-fu is strong with me, so I mixed several information and tutorials together and when I encountered a problem I found a solution than it was more empirical or based on information I gathered here in the community or on some other forums.

I would like to post a step-by-step guide for not programmer like me to set their Pi for EYESY without too much headache :slight_smile:

One of the tutorial I followed is “Headless Pi start to finish” from @mzero and I was guessing if it’s possible to repost part of it into my guide (giving due credits, of course).

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Awesome to read. I finally receive back my raspberry pi, and connected it to the PiSound (I had to use my Rpi in another project). So the plan is to try to install all this in the coming week. I’ll report back here. @jqrsound I’ll look for updates when you post that step by step.

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Yeah, it’s really fun to play with Eyesy and PD, also the MIDI implementation is great :slight_smile:

The step-by-step guide is actually ready, because I did copy/paste every step while I was installing and setting the Pi, as a reminder for myself in case I had to start again from the beginning.

But I read on the Community Guidelines that I’m not suppose to post somebody’s else work, so I don’t know if I’m allowed (everybody is credited of course, I’m not taking any prize).
I’d like to ask @Giedrius or the moderators how can I post it.

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Yes, that should be totally fine. :slight_smile: That bit is about copyrighted work that could cause legal troubles, like uploading music you have no rights to as file attachments to your post (in other word, piracy). Linking to other people’s content is fine, and referencing and reusing tutorials posted by other users should be completely ok. :slight_smile:

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@ponnuki yeah, today I had some spare time, so I posted the guide :smiley:
@Giedrius I hope is all fine, formatting and such.

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26

Wow this is a such detail explanation! I’ll go trough it maybe tonight, but I’ll skip the X window part and VNC as I am comfortable on the command line. Thanks for all the work!

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You’re welcome :slight_smile:
I hope it’ll work for others too, so far everything is stable and EYESY responds well to Midi and Audio.
My plan is to use it live connected to an MPC One, but let’s see when the time will come if the heat won’t be a major problem.

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Sweet - yeah I have a few Midi device that I’ll be happy to connect to! Also working with a Octatrack, where I can configure the midi out, but I’d like the midi to also come from my synth so the visual are based on the audio + midi. Anyway, looking forward to experiment with this.

1 Like
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Cool, than maybe check Step 17 to enable Midi Thru :slight_smile:
I thought about using the RasPi in insert for both audio and Midi, but the audio part it’s too risky in a live setup, so I only enabled Midi Thru.

My setup will be like:

MPC Midi Out → Pisound Midi In → Pisound Midi Thru/Out → Synth Midi In
MPC Audio Out → Mixer 1-2
Synth Audio Out → Mixer 3
Mixer Aux 1-2 → Pisound Audio In L-R (L for MPC, R for Synth)

Okyeron also wrote: you can use the stereo input in your Modes, in Python there are accessible via etc.audio_left and etc.audio_right in the scripts, etc.audio_in remains L+R.

Please share your live set when it’ll be ready, I’m curious!

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I got Eyesy up an running on a 3b+, Raspbian Lite, no desktop but I don’t have a PiSound so just used a USB Alesis io2 express (class compliant - works with Patchbox OS no problem) and disabled built in sound and made this the default card at 48000.

Eyesy is in python mode (ofLua does not work at all) runs well for about 1-2 minutes and responds to sound input and I can change modes and scenes and alter knobs via TouchOsc but then crashes with the following error in the Web Editor

Traceback (most recent call last):
File "main.py", line 173, in 
sound.recv()
File "/home/pi/Eyesy/engines/python/sound.py", line 76, in recv
avg_l +=audioop.getsample(ldata, 2, (i * 3) + j)
audioop.error: Index out of range
eyesy-python.service: Main process exited, code=exited, status=1/FAILURE
eyesy-python.service: Failed with result 'exit-code'.

I suspect my Alsa settings are incorrect somewhere, has anyone used an external USB card and got Eyesy working on a pi?

Thanks

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That’s still pretty much a work in progress and I think I’m missing some important system setup stuff that’s needed.

Have you changed anything in sound.py? It could be the period size there is not matching up with your soundcard?

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I have not changed anything in sound.py but i will open it up and try to match my card settings. many thanks for this, I imagine this may be the issue

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I figured out what was causing the crashes, my sound card (Alesis io2 express) can only run at 24 bit depth and cannot do 16 bits, I bought a cheap usb sound card, changed sound.py to reflect 44100 and 1 channel input and all runs perfectly now

Many thanks for an awesome port of Eyesy, i got my new card today and am having such fun with it, will have to upgrade to a pisound soon

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