[PD] Maximum playback/capture with jack

Pedro Lopes pedro.lopes at ist.utl.pt
Sun Aug 29 13:57:33 CEST 2010

I've just opened jack (via qjackctl) and pdextended (rt enabled in an
rt kernel).

It seems to work, I tryed 48 out and in and they all appear on qjack
frontend GUI, I can connect and route any combination of inputs.

What I did was go to Pd main GUI > media > Audio Settings > and change
number of channels numberbox to 48 in and same for out.

Have you tryed this way?

Best regards,
p.s.: although its working Im testing this in a really lame netbook,
so It gets all scrambled and slow with so many ins. I can try in my
laptop and confirm if the aforementioned procedure works too.
On Sun, Aug 29, 2010 at 10:58 AM, Christoph Kuhr <christoph.kuhr at web.de> wrote:
> Hi everyone,
> I have a problem using jack audio...
> I want puredata to register 48channels of capture and 8 of playback.
> But i get only 18channels running.
> Else pd says:
> "error: JACK: unable to connect to JACK server
> JACK: jack returned status 17
> error: JACK error: cannot deliver port registration request
> error:JACK: can only register 18 input ports (instead of requested 48)"
> Is pd limited to 26 channels IO?
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Pedro Lopes (ongoing MSc)
contact: pedro.lopes at ist.utl.pt
website: http://web.ist.utl.pt/Pedro.Lopes

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