<![CDATA[How to send guitar signal to Pd?]]>Hi, I'm a complete Pd and audio engineering beginner trying to connect an electric guitar to my Macbook and process the signal to create some effects for a school project. I'm trying to use JACK for that purpose, but I searched the entire internet including this forum, and can't seem to figure out how to do it.

What I'm working with is:

  • jack -> USB Behringer cable
  • Pd 0.51.1
  • JACK 1.9.16 installed with an installer from jackaudio.org and running the bundled Qjackctl
  • macOS Catalina 10.15.6

When I run JACK in messages I can see that it recognizes the USB guitar interface C-Media USB Device:
image.png

In the connection graph I can only see these available:
Screenshot 2020-10-29 at 22.47.57.png

Also while having JACK running, I go to MEDIA -> JACK in Pd and in the logs I get "Can't open Jack (it seems not to be installed)" error message.

I've also tried alternatives to JACK like Soundflowe or Blackhole, but don't understand how to use it to send the guitar signal to Pd or even how to send it to the speakers (is that even possible?).

My JACK settings look like this:
Screenshot 2020-10-29 at 22.53.31.png

Any help would be greatly appreciated!

]]>http://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pdRSS for NodeSun, 19 Jul 2026 15:06:28 GMTThu, 29 Oct 2020 21:55:23 GMT60<![CDATA[Reply to How to send guitar signal to Pd? on Thu, 29 Oct 2020 21:55:23 GMT]]>Hi, I'm a complete Pd and audio engineering beginner trying to connect an electric guitar to my Macbook and process the signal to create some effects for a school project. I'm trying to use JACK for that purpose, but I searched the entire internet including this forum, and can't seem to figure out how to do it.

What I'm working with is:

  • jack -> USB Behringer cable
  • Pd 0.51.1
  • JACK 1.9.16 installed with an installer from jackaudio.org and running the bundled Qjackctl
  • macOS Catalina 10.15.6

When I run JACK in messages I can see that it recognizes the USB guitar interface C-Media USB Device:
image.png

In the connection graph I can only see these available:
Screenshot 2020-10-29 at 22.47.57.png

Also while having JACK running, I go to MEDIA -> JACK in Pd and in the logs I get "Can't open Jack (it seems not to be installed)" error message.

I've also tried alternatives to JACK like Soundflowe or Blackhole, but don't understand how to use it to send the guitar signal to Pd or even how to send it to the speakers (is that even possible?).

My JACK settings look like this:
Screenshot 2020-10-29 at 22.53.31.png

Any help would be greatly appreciated!

]]>http://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pdhttp://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pdThu, 29 Oct 2020 21:55:23 GMT<![CDATA[Reply to How to send guitar signal to Pd? on Thu, 29 Oct 2020 23:12:55 GMT]]>JACK would be for routing audio between apps. If the signal chain is only guitar > soundcard > Pd > soundcard > amp then I'd say the first test should be without JACK. (With computers, usually best to avoid complication initially.)

Just yesterday in a class I was picking up mic audio in Pd, but not using Jack.

hjh

]]>http://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pd/2http://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pd/2Thu, 29 Oct 2020 23:12:55 GMT<![CDATA[Reply to How to send guitar signal to Pd? on Sat, 31 Oct 2020 20:44:07 GMT]]>Okay, it's because I was looking at https://guitarextended.wordpress.com/ and he was using JACK. Thanks for clarifying, it works now :)

]]>http://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pd/3http://forum.pdpatchrepo.info/topic/13111/how-to-send-guitar-signal-to-pd/3Sat, 31 Oct 2020 20:44:07 GMT