What is the performance of the jackd like in its windows incarnation.
Similar to Linux, better or perhaps significantly worse? Is it
recommendable for general purpose usage?
Since this would be for cross-platform applications, I am also
interrested in any experience with the various graphics API's available.
I have here a small audio application written for Win32 and compiled for
Linux using winelib. This kind of works - at least for small projects
like this one - but latency is way up. The same application ported to Qt
with jack as a KDE application runs as smooth as one could ever request.
Would this then be a simple matter of running ./configure and make on
the output from KDevelop to get it to compile and run on Windows as
well?
Hi :)
sorry, I'm a fan of Qtractor, but it's still on a state were bugs
urgently should be reported and wishes might have more effect than for
similar, but established applications.
I send 3 mails to rncbc(a)rncbc.org, but I got 'Could not deliver the
message in the time limit specified.'
I also wasn't able to surf http://www.rncbc.org/, the strange thing is,
that I don't get an error message.
I know that he's subscribed to Jack-dev and LAD.
Is anybody able to connect to http://www.rncbc.org/?
Some time ago there was a similar problem with his domain. I fear I can
imagine what the problem is :(.
Best,
Ralf
PS: Now I got "The server at www.rncbc.org is taking too long to respond."
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Hi Everyone,
I'm pleased to announce the initial 'LV2' release of the Invada Studio Plugins which feature plugin GUI's along with a new 'Stereo Phaser'
plugin.
The plugins have been tested on Arch 2009.02, Ubuntu Hardy and Ubuntu Jaunty (amd64) using Ardour 2.8 & Lars Luthman's Elven but if you come
across something that doesn't look right (or is plain broken) please log it as a bug via the Invada Studio Launchpad page:
https://launchpad.net/invada-studio
More information & source download can be found here: http://www.invadarecords.com/Downloads.php?ID=00000264
For those running Ubuntu or derivatives, packages for Hardy, Jaunty, Intrepid & Karmic exist in the Invada PPA:
https://launchpad.net/~invada/+archive/ppa
Any Feedback / comments welcome.
Enjoy!
Fraser.
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Hi,
this is my first post to LAD. The discussion about a hammond simulation "Fons
could you make us...", Beatrix and some research for writing a (german)
wikipedia article (stub) about the Vox Continental inspired me to hack a quick
organ program that simulates the internal signal flow of the "Connie" with JACK
MIDI input and JACK audio output.
Have fun:
http://cryptomys.de/horo/Connie/Connie-0.1.tar.gz
Ciao
Martin Homuth-Rosemann
Hi,
I have noticed that all JUCE-based vst plugins do not work in fst (at
least their GUI and their internal message passing stuff). The reason
is that the JUCE framework is initialising its internal machinery (a
MessageManager etc) during the first call to the VST entrypoint, and
if the later call to effEditOpen is performed from a different thread,
then all sort of terrible things happens, and it ends with a deadlock.
There is a discussion in the JUCE forum here:
http://www.rawmaterialsoftware.com/juceforum/viewtopic.php?p=21530#21530
Please note that I'm not asking for a fix, but I just want to let the
FST developers know about this problem !
Julien
On my system the location of some headers changed. For example
/usr/include/lash/lash.h changed to /usr/include/lash-1.0/lash/lash.h.
Are the headers in the wrong place or is there a link missing or do I
have to change my #includes?
Thanks and regards Uli
Hi all,
New much simplified proposal, should be "Fons compatible", hopefully
"Nedko compatible" (with little work), "Paul one package only
compatible", others "keep it simple compatible"...
The first "big" conceptual change compared to the current SVN state is
this new "control IPC" scheme. That is the so called control API can
be used on client side also. The other conceptual change is that
"jackd" process is supposed to be an "always running" daemon that
defines an IPC entry point to be used from "clients". This daemon does
not "automatically" starts the server (as it does now), but will when
requested (either by the "jackd" code directly using C API ) or by the
request of external control font-end using IPC.
1) Server side:
- libjackserver.so contains: server code + C control API + "new" IPC
control API (server side) + C Jack API + IPC Jack API (server side)
- jackd executable is linked with libjackserver.so (nothing new here)
- backends (ALSA, dummy...) are linked with libjackserver.so (nothing
new here)
- a "standalone" client (that wants to embed the server in it's
process) is linked with libjackserver.so and directly uses the C
control API to control/start the server and C Jack API to be a client
(nothing new here).
2) Client side:
- libjack.so contains : "new" IPC control API (client side) + IPC
Jack API (client side)
- clients are linked to libjack.so (nothing new here)
- new control front-end (jackdbus, jackOSC...) are linked to
libjack.so: they control the server using the IPC control API (client
side), they can be regular clients using IPC Jack API (client side) to
deal with connections management and so on...
- a "default" centralized state for the server is always kept in ~/
jackdrc. When a client wants to auto-start, this "default" state is
used. (this is important to keep in mind)
- libjack may have to start the "jackd" executable using the fork+exec
way, or the "jackd" process is an "always running + relaunch" process
(this has to be more defined later on...)
- Qjakctl stays as a regular client, it can still start the "jackd"
process as usual. It can keep its own way of keeping multiple
configurations as it does now.
- more sophisticated control front-end (jackdbus, jackOSC...) are now
regular clients. They can use the IPC control API (client side) for
more sophisticated control of the server. As regular clients, they
access the API to control connections... and so on. The important
thing is that those clients are *obliged* to deal with this "default"
centralized state. Even if they deal with multiple configs in a new
format (XML...) they are supposed to always put a "default" state in
~/jackdrc for the client "auto-start" feature to continue working.
- Ardour can still do it's server control mess on its own... ((-:
3) General:
- a single jack2 package is needed. It contains the "jackd" daemon/
server are before.
- "jackdbus" is now conceptually separated from the Jack source code.
It only uses jack.h + control.h and is linked to libjack.so as any
regular client. It can be distributed separately as a more
sophisticated control front-end available, or be available in the
jack2 package.
- old fashion users can keep their habits
- new "D-Bus aware" guys can explore new fields...
This scheme seems to hopefully solve most of the problems we had, and
requires only a bit of change for the "jackdbus" front-end to continue
working, but not much.
Comments?
Stephane
Heya!
I am currently working on the volume control handling of
PulseAudio. Until now the sliders in the UI mapped their position
linearly to the dB volume scale. i.e. if the slider is at '0%' we get
-90dB, if it is at '100%' we get 0dB, and between that we map linearly
from those percentages to the dB value. To be frank, this sucked big
time because the 'interesting' part is usually way up at -10dB to
0dB. and the remaining part of the volume sliders is pretty boring.
>From reading through the ALSA drivers I know that a lot of sound card
mixer controls usually have a much higher dB resolution near 0dB then
the have near -90dB. Most of the time the steps they choose are very
arbitrary however.
So, I was looking for better suggestions for mapping 'pixel
distances' in the UI to volume factors. I googled a bit and found this:
http://www.robotplanet.dk/audio/audio_gui_design/
Which suggests a cubic relation between 'pixel distances' and the
linear factor.
Any opinions on that? Other suggestions?
Thanks,
Lennart
--
Lennart Poettering Red Hat, Inc.
lennart [at] poettering [dot] net
http://0pointer.net/lennart/ GnuPG 0x1A015CC4
He all,
A picture to try summary what I understand about we would like :
- a new shared library called "libjackontrol.so" : is does implement
the so called control API and a IPC mechanism to use it.
- "jackcontrol" is an *always" running deamon that defined an entry
IPC point. jackcontrol get requests from control applications.
"jackcontrol" can start a seprated server called "jackserver (using a
fork+exec) way. "jackcontrol" is a *unique* place where setting are
handled.
- "jackd" is a recoded control application that parse it's command
line, and use the control IPC to speak to "jackcontrol" (then just
quits). jackcontrol then start the "jackserver" whith the appropriate
paramaters.
- "jackddbus" is a D-Bus aware control application; It receive DBus
requests and translate them to control IPC to speak to "jackcontrol".
jackcontrol then start the "jackserver" whith the appropriate paramaters
- "libjack.so" speaks also to "jackcontrol" using the control IPC: an
client that auto-start actually use this mecanism
Does it helps?
Stephane
