Coming back to this thread since I've solved the issue, and even though it's an openFrameworks thing, it might be helpful to others looking here.

I cloned openFrameworks from GitHub ( https://github.com/openframeworks/openFrameworks) and made the following changes: In the libs/openFrameworks/sound directory, I changed lines lines 96 and 224 from ofSoundStream.h, and line 25 from ofBaseSoundStream.h, replacing UNSPECIFIED with JACK (to be honest, I'm not sure if this is really necessary). Then, in a test app with ofxPd, in testApp.h I included the following line inside the testApp class: ofSoundStream soundStream;

plus the sample variable rate like this: int samplerate;

and in testApp.cpp, inside the setup function, I created an instance of the ofSoundStreamSettings like this: ofSoundStreamSettings settings;

I initialized the sample rate: sampleRate = 48000;

then I setup JACK like this: auto devices = soundStream.getDeviceList(ofSoundDevice::Api::JACK); settings.setOutDevice(devices[0]);

and finally I made the ofSoundStreamSettings like this: settings.setOutListener(this); settings.sampleRate = sampleRate; settings.numOutputChannels = 2; settings.numInputChannels = 0; settings.bufferSize = ofxPd::blockSize()*ticksPerBuffer; soundStream.setup(settings);

Initially I left the settings of Dan: ofSoundStreamSetup(2, numInputs, this, sampleRate, ofxPd::blockSize()*ticksPerBuffer, 3);

but compiling failed and prompted me to use the ofSoundStreamSettings object.

An that's it, it worked with JACK!

Thanks for the tips and Dan, thanks a lot for the addon, it's great!

On Thu, Jun 2, 2016 at 11:30 PM, Alexandros Drymonitis adrcki@gmail.com wrote:

Thanks for the tips guys. I'll try it out and if I manage I'll come back here for the record, even though it's an openFrameworks issue.

On Wed, Jun 1, 2016 at 9:48 PM, ub@xdv ub@xdv.org wrote:

...

On 01.06.2016 17:55, Alexandros Drymonitis wrote:

...

I'm trying to use the ofxPd addon and even though the examples provided compile fine on my computer exchanging data between OF and Pd (I did

some

...

tests with some modified examples too), I can't find a way to use the

addon

...

with Jack.

i have no direct experience, but maybe this part of the readme is interesting for you: """ libpd as utilized in ofxPd does not handle any of the audio interfacing itself, but is called via the ofSoundStream system within OpenFrameworks. If you have any issues with the sound interface / audio apis themselves, please log an issue to the OpenFrameworks Github repo. """

https://github.com/danomatika/ofxPd#audio-interfacing--debugging-audio-issue...

the topic of ofSoundStream with jack really seems to be curiously absent from the public discussions. there is an old thread, suggesting to use rtAudio, compiled with --enable-jack instead of ofSoundStream. might be worth looking into: https://forum.openframeworks.cc/t/openframeworks-with-linux-jack/4242

...

Any ideas? A search I did didn't seem to give any insight (of course someone might show up with a link with very specific instruction, but haven't found something myself). I'm on Debian Jessis XFCE with openFrameworks-0.8.4 and the respective ofxPd addon.

...

I also tried to find libpd's mailing list (or is it a forum?), but it

seems

...

to be down, hence I'm sending the mail here.

cheers, ub

...

Thanks

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