@xylf Can you list? You need to put this patch in the root folder of:
https://www.automatonism.com/the-software

Also be sure to install else library.
Help -> Find external (be patient Deken doesn't output statut (like success)

Fix a missing else/ but I hear only pulse...
1570349467021-dfam.pd

@cfry What OS? Be sure to run pd in realtime (using the -rt flag). Do you have glitches with the simple Test audio from the menu (without the arduino patch open)? It might be related to your audio buffer.

@jancsika

Nice! Very nice.

@zigmhount My FX are both externals and abstractions, I am not using LV2 or ladspa plugins. Since you have a single core, I don't think you should use multiple instances of pd or [pd~]. I might be wrong.

@zigmhount The fact that this computer is a single core doesn't change much for pd (since it's single-thread process). I am running a similar setup (4 samples poly for a drumkit) using a low-latency setup with fx (delay, reverb, disto). I think everything that you need is doable with pd, but yes, you need some optimization (switch~) and monitor the cpu.

Be sure to start pd in realtime too (pd -rt -jack -channels 2 -mididev 1 -alsamidi)

Good luck

I still think that $600USD is expensive but I'm cheap I don't know about the commercial viability of a groovebox... but I will share 2 interesting products for inspiration.

ELK audio (low latency 1ms custom kernel) - not sure about the boot time - me I don't mind when I need to wait 40sec before making noise... It doesn't say PD on the website, but of course it would be possible. That's a commercial products AFAIK. https://elk.audio/audio-os/

Zynthian - https://zynthian.org/ & https://shop.zynthian.org/shop/product/zynthian-kit-v4-1-358?category=13

@svanya I recall an object called [pipe] - not sure if it would help. That's a bit strange.

@CrouchingPython There is no error with your patch, but like you probably know already it doesn't produce sound (your patch send midi out to an external connected software or hardware). Media - Test audio and midi is your friend, it will start the DSP and you can test in / out of both audio and midi.

@ddw_music You can have a quick look at pdmtl abstraction:
https://github.com/aalex/pdmtl

Look for all musical.* might have something there that would help you a bit?

+1

Try this:
https://forum.pdpatchrepo.info/topic/13041/crackled-audio-from-pd-on-raspberry-pi-4/10

@lacuna said:

• Much more important to me would be making a backup of this forum.

We have backup, but yes I agree that we need to mirror it (what if I die). Like I said it would be a good time to upgrade the solution (nodebb) - there is a bug with this forum (eating all the cpu). I wish I had more time, very difficult these days.

and I could easily embed (using a iframe) the wiki in the forum (adding a icon in the menu opening the page, something like what we did for: https://forum.pdpatchrepo.info/dataflow)

http://pdpatchrepo.info/patches was a good idea, but I don't think I will invest time in it. We have https://patchstorage.com/platform/pd-vanilla/ that is better.

I can "easily" add a wiki on the server, but like I said to @beem https://puredata.info/ is a bit everything (both sharing patch & information). I agree that it's a bit of a mess.

Also it's been a while since I search google for similar information (guides, tutorial, wiki, documentation). I think we should at least list them here in this post (or a new post called "knowledge base" of something similar and then we can see if we need it.

Would also like to invest time in upgrading this forum, we are running a very old version

@tiemget Basically you need to install and configure jack (you will need to open a terminal and use the command line). Like you can see, it's far from plug and play. If you have motivation and time it's doable

1. open a terminal type: sudo apt update && sudo apt install qjackctl
2. find qjackctl in the menu, open it, Setup... choose your soundcard in Interface and start using Frames/Period of 1024
3. launch pd from the command-line pd -rt -jack -channels 2 -alsamidi

Or [mrpeach/midifile] (maybe in deken)

@nicnut A dedicated soundcard is the way to go AFAIK. Also using jack and controlling the buffer (if you don't need low latency then use a big buffer like 1024).

@tiemget Are you using jack? You can run pd using alsa, but it will be the only application accessing your soundcard. Installing and using jack allows you to route audio and control the buffer size (128,256,512). If you are new to linux, have a seat you are in for a ride ;p

@tiemget How to you launch pd? ie: pd -rt -jack -channels 2... or maybe you are using alsa?

@tiemget How do you start pd (show us the command line)