@Krzysztof-Cybulski Come on guys.... show us something that can't be done in Pd..........
Here is just over 24 minutes of 44.1 stereo 16bit with just the 1st channel loaded (for simplicity). It does not eat ram or cpu. You can extend it as required by adding "slices" and by adding channels but you should be ok with the slice "bite" size no matter how many channels you have. It needs some extra logic to correctly size the last slice used (depending upon the file size.... added to "todo" list) and so at some point I might rebuild it as a truly dynamic patch...............
lo____ng.pd
The accuracy of the slider in the last slice can be addressed in a dynamic patch as the -maxsize flag can be calculated to scale the waveform correctly in the window.
Somewhere I have managed to introduce a glitch at the change points between slices that was not there before introducing the slider control (+"todo"). .... But it works!.......
David.

@ALON said:

After searching for a while I found a very interesting PD object:

jack_transport~

(The code is available at http://artdent.homelinux.net/svn/jack_transport~/ )

it's very useful for my application. It can have in PD information about the jack transport like:

BPM
Ticks
beat
measure

I use the command line application jack_transport as master control to set the BPM and other tempo settings for the jack transport.
Then i can finally synchronize PD and Hydrogen.

Today this link: http://artdent.homelinux.net/svn/jack_transport~/ is dead. Where I can found jack_transport~ in another place? Thanks.

@diagobd2 said:

I have landed up at PD following a complete conversion and inspiration from one of your members inventions Slice Jockey and live decomposer, the modelling possibilities of DSP convolution have been occupying my studies almost exclusively in recent months and Slice Jockey really was akin to Moses meeting the Burning Bush for me a truly amazing piece of work.

___________________________
obd2 diagnostic toolgm tech2

My enthusiasm has continued unabated since the damascliun conversion to the Slice Jockey Beat.

Others have become similarly smitten.
http://www.futureguitarnow.com/forum/index.php?topic=1945.0

i'm having trouble running PD under jack on OSX.
the patch i'm working with is very cpu intensive, but i optimized it as far as possible. when i run it with portaudio now, things are fine. i have to use high delay times of about 90ms to have things running smooth, but that's fine for me because it's more like soundscapeish stuff that don't need fast control response.
but when i use jack to route the outputs into ardour i get the typical audio cut-outs from too low latency (at 2048 buffersize maximum), and there seems to be no way to increase latency to the point where things work out under jack. at the same time though, cpu goes significantly down with jack, but still i get the clicks. very strange.
i've been told that the maximum latency is hardwired by the audio interface, but why can i increase the delay under portaudio to whatever amount i wish to have things working, but not under jack?
i hear that jack is supposed to be a "low latency audio driver" but for some reason it ruins the performance of my patch.
is there an alternative way to route 8 to 10 channels of audio into ardour?

thanks for any advice!

Ponzo, note generation in Instant Decomposer is deceptively simple: beats, 8th notes and 16th notes are all generated, with random selection of slices and playback speed. Some ticks are skipped, when a slice is still playing and not allowed to be interrupted. Therefore, with long slices you don't hear the pulse.

In the meantime I have developed a kind of sequencer-method using mathematical patterns which can replace random slice selection. So, in addition to pulse, there is pattern structure. This method is also built into Slice//Jockey, a shared patch which you can find from this forum.

But pulse and pattern are not inherently musical operators, and beautiful sounds do not automatically make beautiful music. Should a sound automatically get it's niche where it can blossom, routed by better analysis in the program? No, I want my computer to only do the stupid hard work, like cutting samples and counting beats. It must leave esthetic decisions to me. So, at this point in my very immature research, I am looking for ways to regain control. A better interactive GUI could help with this. A GEM GUI, possibly...

Katja

I did.

For command jackd I get this terminal output:

matjaz@matjaz-NV59C:~$ jackd
jackdmp 1.9.6
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2010 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
Cannot create thread 1 Operation not permitted
Cannot create thread 1 Operation not permitted

usage: jackdmp [ --no-realtime OR -r ]
[ --realtime OR -R [ --realtime-priority OR -P priority ] ]
(the two previous arguments are mutually exclusive. The default is --realtime)
[ --name OR -n server-name ]
[ --timeout OR -t client-timeout-in-msecs ]
[ --loopback OR -L loopback-port-number ]
[ --port-max OR -p maximum-number-of-ports]
[ --midi OR -X midi-driver ]
[ --verbose OR -v ]
[ --clocksource OR -c [ c(ycle) | h(pet) | s(ystem) ]
[ --replace-registry ]
[ --silent OR -s ]
[ --sync OR -S ]
[ --temporary OR -T ]
[ --version OR -V ]
-d backend [ ... backend args ... ]
Available backends may include: alsa, dummy, freebob, firewire or net

jackdmp -d backend --help
to display options for each backend

and for qjackctl:
The same control GUI opened where I clicked start.

15:38:11.262 Patchbay deactivated.
15:38:11.263 Statistics reset.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
15:38:11.286 ALSA connection graph change.
15:38:11.482 ALSA connection change.
15:38:19.241 Startup script...
15:38:19.242 artsshell -q terminate
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
sh: artsshell: not found
15:38:19.646 Startup script terminated with exit status=32512.
15:38:19.646 JACK is starting...
15:38:19.646 /usr/bin/jackd -dalsa -d/dev/dsp -r44100 -p256 -n2 -Xseq
15:38:19.649 JACK was started with PID=2544.
Cannot create thread 1 Operation not permitted
Cannot create thread 1 Operation not permitted
jackdmp 1.9.6
Copyright 2001-2005 Paul Davis and others.
Copyright 2004-2010 Grame.
jackdmp comes with ABSOLUTELY NO WARRANTY
This is free software, and you are welcome to redistribute it
under certain conditions; see the file COPYING for details
JACK server starting in realtime mode with priority 10
Cannot lock down memory area (Cannot allocate memory)
ALSA lib control.c:882:(snd_ctl_open_noupdate) Invalid CTL /dev/dsp
control open "/dev/dsp" (No such file or directory)
ALSA lib control.c:882:(snd_ctl_open_noupdate) Invalid CTL /dev/dsp
control open "/dev/dsp" (No such file or directory)
audio_reservation_init
Acquire audio card Audio-1
creating alsa driver ... /dev/dsp|/dev/dsp|256|2|44100|0|0|nomon|swmeter|-|32bit
ALSA lib control.c:882:(snd_ctl_open_noupdate) Invalid CTL /dev/dsp
control open "/dev/dsp" (No such file or directory)
Cannot initialize driver
JackServer::Open() failed with -1
Failed to start server
15:38:19.743 JACK was stopped with exit status=255.
15:38:19.745 Post-shutdown script...
15:38:19.746 killall jackd
jackd: no process found
15:38:20.153 Post-shutdown script terminated with exit status=256.
15:38:21.703 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
15:38:31.152 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
15:38:42.143 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started
15:39:02.300 Could not connect to JACK server as client. - Overall operation failed. - Unable to connect to server. Please check the messages window for more info.
Cannot connect to server socket err = No such file or directory
Cannot connect to server socket
jack server is not running or cannot be started

I'm lost.

Thanks!

There seems to be similar thread going on with sonsofsol.

i installed jackd, when typing this command:

pacmd load-module module-jack-source channels=2; pacmd load-module module-jack-sink channels=2;

i get the following error

Welcome to PulseAudio! Use "help" for usage information.
>>> Module load failed.
>>> Welcome to PulseAudio! Use "help" for usage information.
>>> Module load failed.

when trying to connect pd with jack i get
error: JACK: unable to connect to JACK server
JACK: jack returned status 17

How to fix this?

Also in PD, when I choose ALSA midi, not Jack, then PD appears in Jack control.
Does this mean alsa-midi is the way to connect Pd to Jack? Not by choosing "Jack" in "media"?

M

thanx for your help guys.

i installed jackd, when typing this command:

pacmd load-module module-jack-source channels=2; pacmd load-module module-jack-sink channels=2;

i get the following error

Welcome to PulseAudio! Use "help" for usage information.
>>> Module load failed.
>>> Welcome to PulseAudio! Use "help" for usage information.
>>> Module load failed.

when trying to connect pd with jack i get
error: JACK: unable to connect to JACK server
JACK: jack returned status 17

anybody know how to fix this?

Windows 7, pd extended, Live 8

I know there have been other posts on this, but I could not find a solution anywhere...

I am trying to use Jack to route multiple outputs (8) from pd to Ableton Live. I believe I have Jack installed correctly, and can route audio in both directions between Ableton and my external sound card via Jack "cables."

I am unable to get pd to show up in the Jack patch panel. I have chosen "ASIO (via portaudio)" from the pd media menu, then selected "(1)JackRouter" as my output device in audio settings, turned audio on, etc. but still pd does not show up in Jack.

I am hopeful someone can provide clear instructions for using Jack with pd on Windows.

Thank you!

Hi to all, this is my first post in this forum.
I'm trying to use PD's patches inside my setup, and now I'm struggling with the MIDI latency that PD creates.

First of all, I'm a drummer and I use a drumpad(DrumKat) to trigger samples on my laptop, so for me the latency is a 1st class problem.
I have two setups: one with Ubuntu 10.04(Kernel 2.6.33-29-realtime) + jack, and the other with OSX leopard + jackosx. The first one is the more tested.

I want to know the latency that PD creates between notein-noteout process.
To do this, I simply connected my drumpad to PD's midiin, PD's midiout to PD's midiin, and opened my patch(attached to this post).

If the patch is right, there is a link between jack's latency and PD's MIDI latency.
If I set jack's framebuffer to 256, I have 11.6 msec of audio latency and 5.8 ms of PD's MIDI latency.
If I set jack's framebuffer to 128, I have 5.8 msec of audio latency and 2.9 ms of PD's MIDI latency.

Is this correct? Is there a way to reduce MIDI latency without changing the audio latency of jack?

Thank you and sorry for my english.

Nicola

http://www.pdpatchrepo.info/hurleur/pd-midi_latency_test.pd