dear list,
i'm trying to work with 48 outputs (2 motu 424) in one instance of puredata but i got the error "output channels reduced to maximum 32" when i try to set the output channel number to 48
does anyone have an idea how to put this maximum up to 48 ?
thanks
antoine
--
do it yourself http://antoine.villeret.free.fr
I think it's a technical limit of Pd... I've Pd vanilla 0.41.4 compiled by me on GNU/Linux, If i tried to set 48 chan. I got
mbutu@mbutuarch ~]$ /usr/bin/pd 48 output ports not supported, setting to 32 pd_gui: pd process exited Segmentation fault
So i think you need more instances of Pd.
Fabio [mbutUbuntu] Buda http://mbutubuntu.homelinux.org
Antoine Villeret wrote:
dear list,
i'm trying to work with 48 outputs (2 motu 424) in one instance of puredata but i got the error "output channels reduced to maximum 32" when i try to set the output channel number to 48
does anyone have an idea how to put this maximum up to 48 ?
thanks
antoine
--
do it yourself http://antoine.villeret.free.fr
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
mbutubuntu wrote:
I think it's a technical limit of Pd... I've Pd vanilla 0.41.4 compiled by me on GNU/Linux, If i tried to set 48 chan. I got
mbutu@mbutuarch ~]$ /usr/bin/pd 48 output ports not supported, setting to 32 pd_gui: pd process exited Segmentation fault
So i think you need more instances of Pd.
we are using Pd successfully with 64 channels.
usually with alsa as backend.
the jack-backend of Pd is buggy and only supports 32 channels. it will also crash if you are setting higher numbers of channels.
i have once posted a bugfix for this to the patch-tracker that raises the maximum number of channels to 1024, but people reported problems with that.
just yesterday i have done tests with jack and 64 channels (with a modified patch applied, the modification was to reduce the number of channels to 256, iirc), and had no problems at all. according to jack, i was down to 2.5ms, and i _measured_ a latency of 10-11ms.
there might as well be problems with OSS and higher number of channels (hidden within the depths of OSS)
fgmasr IOhannes
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote:
mbutubuntu wrote:
I think it's a technical limit of Pd... I've Pd vanilla 0.41.4 compiled by me on GNU/Linux, If i tried to set 48 chan. I got
mbutu@mbutuarch ~]$ /usr/bin/pd 48 output ports not supported, setting to 32 pd_gui: pd process exited Segmentation fault
So i think you need more instances of Pd.
we are using Pd successfully with 64 channels.
usually with alsa as backend.
the jack-backend of Pd is buggy and only supports 32 channels. it will
also crash if you are setting higher numbers of channels.
I don't know what we did, but for the 16:9 installation currently on display in the Deutschlandfunk, Cologne (images i.e. here: http://footils.org/cms/show/63) we are running Pd-extended over Jack on OS-X with 60 channels. I think, it's a pretty standard Pd-extended, so maybe this already includes your bugfix.
Ciao
Frank Barknecht Do You RjDj.me? _ ______footils.org__
thanks all
it seems to work fine with 48 jack outputs
best
antoine
2009/1/22 Frank Barknecht fbar@footils.org:
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote:
mbutubuntu wrote:
I think it's a technical limit of Pd... I've Pd vanilla 0.41.4 compiled by me on GNU/Linux, If i tried to set 48 chan. I got
mbutu@mbutuarch ~]$ /usr/bin/pd 48 output ports not supported, setting to 32 pd_gui: pd process exited Segmentation fault
So i think you need more instances of Pd.
we are using Pd successfully with 64 channels.
usually with alsa as backend.
the jack-backend of Pd is buggy and only supports 32 channels. it will also crash if you are setting higher numbers of channels.
I don't know what we did, but for the 16:9 installation currently on display in the Deutschlandfunk, Cologne (images i.e. here: http://footils.org/cms/show/63) we are running Pd-extended over Jack on OS-X with 60 channels. I think, it's a pretty standard Pd-extended, so maybe this already includes your bugfix.
Ciao
Frank Barknecht Do You RjDj.me? _ ______footils.org__
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
Sorry, on Linux I use Jack but my limit is 32 channels, do you use Mac Os X ?
Antoine Villeret wrote:
thanks all
it seems to work fine with 48 jack outputs
best
antoine
2009/1/22 Frank Barknecht fbar@footils.org:
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote:
mbutubuntu wrote:
I think it's a technical limit of Pd... I've Pd vanilla 0.41.4 compiled by me on GNU/Linux, If i tried to set 48 chan. I got
mbutu@mbutuarch ~]$ /usr/bin/pd 48 output ports not supported, setting to 32 pd_gui: pd process exited Segmentation fault
So i think you need more instances of Pd.
we are using Pd successfully with 64 channels.
usually with alsa as backend.
the jack-backend of Pd is buggy and only supports 32 channels. it will also crash if you are setting higher numbers of channels.
I don't know what we did, but for the 16:9 installation currently on display in the Deutschlandfunk, Cologne (images i.e. here: http://footils.org/cms/show/63) we are running Pd-extended over Jack on OS-X with 60 channels. I think, it's a pretty standard Pd-extended, so maybe this already includes your bugfix.
Ciao
Frank Barknecht Do You RjDj.me? _ ______footils.org__
Pd-list@iem.at mailing list UNSUBSCRIBE and account-management -> http://lists.puredata.info/listinfo/pd-list
mbutubuntu wrote:
Sorry, on Linux I use Jack but my limit is 32 channels, do you use Mac Os X ?
as stated before, we are using 64 channels on an alsa-based (advanced Linux sound architecture) system, namely debian.
the reason why it works for other people is (as frank has guessed correctly) that Pd-extended has applied my patches (with a maximum number of 128 jack-ports)
you can find them at the patch-tracker on the sourceforge-project site.
gamsrd IOhannes
Hallo, IOhannes m zmoelnig hat gesagt: // IOhannes m zmoelnig wrote:
mbutubuntu wrote:
Sorry, on Linux I use Jack but my limit is 32 channels, do you use Mac Os X ?
as stated before, we are using 64 channels on an alsa-based (advanced
Linux sound architecture) system, namely debian.the reason why it works for other people is (as frank has guessed
correctly) that Pd-extended has applied my patches (with a maximum
number of 128 jack-ports)
I guess then maybe the patch should go into 0.42 as well? I can confirm that it runs stable for *days* on OS-X. And you probably tried on Linux.
Ciao
Frank Barknecht Do You RjDj.me? _ ______footils.org__
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Antoine Villeret -
Frank Barknecht -
IOhannes m zmoelnig -
mbutubuntu