[PD] Maximum playback/capture with jack

[Christoph Kuhr]

Today i had closer look:

I have 26i 26o for the system
And i have netjack with 24o 2i
So pd is always limited to 126-78(26+26+24+2)ports no matter in which  
combination i try ins and outs... Seems to be a jack issue...




Am 29.08.2010 um 17:48 schrieb Pedro Lopes <pedro.lopes at ist.utl.pt>:

> I have tried with the pd config, with 40 ins and outs. (see attached
> image) and works. And I also can run other apps like japa,
> meterbridge, mocp, whatever.
>
> Apparently the thing in jack is:
> - each application can register as many in/outs as they demand (when
> you change pd to 40/40) those appear in the qjackctl frontend
> - there should be a maximum defined somewhere, I couldn't find it
> easy, must be in jack documentation
> - for the audio card, jack can only send ins/outs at the max of the
> audio card true in/out - obviously =P
>
> Report if you have any luck.
>
> Best regards,
> Pedro
>
> On Sun, Aug 29, 2010 at 4:36 PM, Pedro Lopes  
> <pedro.lopes at ist.utl.pt> wrote:
>> No my mistake, I was looking at device input channels, so their
>> directly binded to the soundcard, hence they are not virtual.
>>
>> I'm gonna try another workaround...
>>
>> On Sun, Aug 29, 2010 at 3:23 PM, Christoph Kuhr <christoph.kuhr at web.de 
>> > wrote:
>>> which one do you mean?
>>> i only have it in german...
>>> there is something like system-input/output ports, but they  
>>> configure
>>> alsa, not jack itself ?!?
>>> and another item max port, which is 256...
>>>
>>>
>>> Am 29.08.2010 16:07, schrieb Pedro Lopes:
>>>> ahhh.. in qjack there's a setting (qjack > setup) for max input and
>>>> output ports, if you tell him nothing its running "default" which  
>>>> is
>>>> probably the values you reported.
>>>>
>>>> On Sun, Aug 29, 2010 at 3:00 PM, Christoph Kuhr <christoph.kuhr at web.de 
>>>> > wrote:
>>>>
>>>>> Yes, i did so too...
>>>>> It seems to me, that jack is limited on his total ports...
>>>>> netsource 2i 24o
>>>>> Pd 24i 8o
>>>>> System 24i 26o
>>>>>
>>>>> This is running so far
>>>>> But any other jack client can connect anymor... Not jack rack,  
>>>>> not japa
>>>>> etc...
>>>>>
>>>>> Has the number of ports to do with the used bufferlength in any  
>>>>> way... I
>>>>> mean do they influence each other?
>>>>>
>>>>>
>>>>>
>>>>> Am 29.08.2010 um 13:57 schrieb Pedro Lopes  
>>>>> <pedro.lopes at ist.utl.pt>:
>>>>>
>>>>>
>>>>>> 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,
>>>>>> Pedro
>>>>>> 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?
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> _______________________________________________
>>>>>>> Pd-list at iem.at mailing list
>>>>>>> UNSUBSCRIBE and account-management ->
>>>>>>> http://lists.puredata.info/listinfo/pd-list
>>>>>>>
>>>>>>>
>>>>>>
>>>>>>
>>>>>> --
>>>>>> Pedro Lopes (ongoing MSc)
>>>>>> contact: pedro.lopes at ist.utl.pt
>>>>>> website:http://web.ist.utl.pt/Pedro.Lopes
>>>>>>
>>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>
>>
>>
>> --
>> Pedro Lopes (ongoing MSc)
>> contact: pedro.lopes at ist.utl.pt
>> website: http://web.ist.utl.pt/Pedro.Lopes
>>
>
>
>
> -- 
> Pedro Lopes (ongoing MSc)
> contact: pedro.lopes at ist.utl.pt
> website: http://web.ist.utl.pt/Pedro.Lopes
> <ScreenshotJack4040JapaPd.png>


-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.puredata.info/pipermail/pd-list/attachments/20100830/65a3b95c/attachment-0001.htm>