Hello, guys.

I am just starting PD now, but I am confronted at MIDI setup problem. I can't play MIDI algorithm. So I just opened up MIDI setup window, on the output devices I can't find 'AU DLS'. I am using Mac OSX. With MaxMSP, everything is OK. And when I choose 'to max 1', I can send MIDI messages from PD to Max without any problem. But, in PD window, I can't use GM MIDI. And I am afraid of not setting up MIDI part. Anybody can helps me out? Really appreciate it.

And, when using raspberry pi, I got the same problem too.

@JOO I'm no Mac power user (and I know nothing about RPi), but the way I connect Pd's MIDI output to a software synth is via one of the IAC busses I created in AudioMIDI setup. I configure Pd to use one of the busses as its output device and the software synth to use that same bus as its MIDI source. If there's another way please let me know!

@jameslo Thanks for your reply.
Yeah, I think I did check up IAC driver. I checked 'IAC driver bus 1' in the MIDI settings window of Pd and clicked OK button, and I confirmed that there is an icon 'IAC driver' in the pannel of MIDI studio in my Mac. But still no sound output. MIDI messages are blocked in somewhere else. I couldn't find.

@JOO What software synth are you using? In my case I think Mohave didn't come with a GM synth installed (like Windows 10 does), so I had to install SimpleSynth and configure it to read from the bus.

I feel so foolish answering Mac set up questions because I'm usually the one asking them Here is someone who had the same problem 10 years ago: https://forum.pdpatchrepo.info/topic/4119/general-midi-au-dls-synth-where-oh-where