Recently I am testing using Jack on Windows, apparently everything works fine with all the audio processing, but something in the settings does not seem right ...

I use a system with 6 inputs and 6 outputs in Pure Data. I define this in Pure Data, but when viewing in Jack, he shows me only 2 Pure Data inputs and outputs for 8 of the system. Any idea what it might be?

I'm using M-Audio Eight on a Windows 10 64bit

Thanks!

@edcarvalhu First thought (I use windows with Asio4All..... not Jack.... so I probably cannot help)........ maybe jack only sees ports with activity?
Do they show up if you put an [adc~ 1 2 3 4 5 6] and [dac~1 2 3 4 5 6] in your patch and turn dsp on in Pd?
Second thought....... Have you tried re-starting them both a few times..... maybe Pd first and then Jack..... maybe the other way round?
Third thought...... Does the "Refresh" button in Jack pick up the missing ports?
David.

@whale-av Yes, I've tried all the alternatives before ... :/

@edcarvalhu Maybe you still have to edit the jackrouter.ini file to set the maximum number of virtual channels available?............ http://mixbus.harrisonconsoles.com/forum/thread-2632.html
David.

Not using Windows, but did you try launching PD from a command prompt? Something like:
pd -rt -channels 6

Hum not sure if you can specify ASIO:JackRouter or just -jack?

have you tried setting them up in the qjackctl patchbay dialogue?

by the way is there a specific reason why you're not using asio4all? if I were running Windows that is definitely what id be using

UPDATING...

Changing the JackRouter.ini file, as suggested by @ whale-av, worked! But in parts ...
1º - I'm testing Jack on two Windows machines. A descktop and a notebook. Same version of PD and system.

2º - On both machines the JackRouter.ini file contained 4 channels as standard.

3º - On the notebook, when I started the PD, I got 4 channels on Jack. In the descktop the result is the print attached above.

4º - After changing the JackRouter.ini file on the notebook, I got the expected result. But ...

5º - In the descktop I still got two PD channels in Jack.

6º - I installed PD 0.48 on the descktop and Jack introduced me to the channels corresponding to those edited in the JackRouter.ini file.

7º - I tried the versions 0.49 and 0.50 of the PD in the descktop and I am still presented with only two channels in Jack, even reinstalling Jack and changing JackRouter.ini.

8º - In Cubase LE I also have the same problem ...

ps: sorry, english is not my native language

@liamorourke said:
have you tried setting them up in the qjackctl patchbay dialogue?

by the way is there a specific reason why you're not using asio4all? if I were running Windows that is definitely what id be using

Yes. first: I received several pops at various times with a big design last year, which only disappeared with a very high latency. Second: I need to work with the lowest possible latency. Finally, I am studying the use of PD with other audio software.

@edcarvalhu You installed the 32/64bit version of Jack "currently being tested" on the Desktop computer? Pd 0.49 and 0.50 are 64-bit..... 0.48 is 32-bit...... and that might explain your experience.
If you have the 32/64 bit version then you will need to report a bug to the Jack developers I think.
It could be that Jack is needing a windows 64-bit DLL that you don't have on the Desktop machine?
However Jack needs its own 64-bit dll registered manually...... https://jackaudio.org/faq/jack_on_windows.html

regsvr32 "C:\Program Files (x86)\Jack v1.9.8\64bits\JackRouter.dll"

.........from a Command prompt..... having unregistered previous versions.....

For Cubase...... it is possible that the "in 1" is a 2 channel "in". Some programs report 2-channel pairs for asio....... not each channel individually.

I agree with @liamorourke though...... that Asio4All is the best solution for low latency windows asio.
You don't get a virtual channel router though. But you can use https://www.vb-audio.com/Cable/ for internal routing.
But if you want to use the JackRouter you can still register other asio drivers with Jack.... see the FAQ above for details.
Each virtual cable gives you 8in and 8out @ up to 192kHz 24-bit..... and you can install 5....... so 40ch..... and they will resample if necessary.
David.

Desktop solution:

There was a "JackRouter.dll" file (probably 32 old test bits from Jack's installation ...) inside the System32 folder. I deleted it and redid the regsvr32 process for the 64bits folder. Result: 8 channels available on the PD/JACK !!

Now I will investigate the routing of a MIDI device to two or more software ...

Thanks to the collaborators!