Hi list,
today I got some time to play around with RME's Madiface (and its
ExpressCard) under Linux/Jack. The card uses Thomas' old hdspmixer with
correct display and routing abilities, it's simply awesome to have 64Ins
and 64outs on a Linux laptop!
However I didn't get beyond the following weird problem:
Starting PureData outputting 64 channels via jack as
pd -jack -channels 64
works and connects and outputs to the Madiface's hardware outs.
If I try to start other audio software (mplayer, alsaplayer) asking them
to output to the first two jack outputs (while Pd is also using them),
I get in qjackctl's message window
no ports available!
and in mplayer
cannot deliver port registration request
[JACK] not enough ports available
Failed to initialize audio driver 'jack'
and in alsaplayer
cannot deliver port registration request
cannot deliver port registration request
Segmentation fault
all followed by a massive xrun in qjackctls message window
**** alsa_pcm: xrun of at least 4995.700 msecs
Now if I start Pd with less outputs, for examples
pd -jack -channels 32
then mplayer is perfectly able to output on the the first two hardware
channels in parallel with Pd.
The weird thing: Jackd's 'max port' argument is set to 256, and the problem persists
also with 512 ports.
Am I missing something here?
Background info:
jackd version 0.124.1 tmpdir /dev/shm protocol 25
is started via qjackctl as
jackd -P89 -t5000 -dalsa -r44100 -p256 -n2 -D -Chw:Default -Phw:Default -i64 -o64
on kernel
3.14-2-rt-amd64 #1 SMP PREEMPT RT Debian 3.14.15-2 (2014-08-09) x86_64 GNU/Linux
Thank you for any suggestions!
Peter
Release 0.33.0 is out,
Guitarix is a tube amplifier simulation for
jack (Linux), with an additional mono and a stereo effect rack.
Guitarix includes a large list of plugins[*] and support LADSPA / LV2
plugs as well.
The guitarix engine is designed for LIVE usage, and feature ultra fast,
glitch and click free, preset switching and is full Midi (learn)
and remote (Web-interface/ GUI) controllable (bluez / avahi)
Changelog:
This release comes with the old User Interface and reflect only changes
in the plugin section.
New Plugins in guitarix
A new Wah plugin with manual/auto/alien mode and the following emulated
wah wah's to select from:
Colorsond Wah
DallasArbiter Wah
Foxx Wah
JEN Wah
Maestro Boomer Wah
Selmer Wah
Vox Wah
A new Fuzz section with emulations of the:
Astrotone Fuzz
Dunlop Fuzzface
Fuzzface Roger Mayer Mods
Fuzzface Fuller Mods
Foxeylady
Hornet
Sustainer
Muff
Screaming Bird
Colorsound Tonebender
Vintage Fuzzmaster
Ruiner
Fat Furry Freak
Fuzz Drive
and emulations of:
LPB-1 Linear power Booster
High Frequency Brightener
Hogs Foot
Dallas Rangemaster
Buffer Booster
Transistor Buffer
Colorsound Overdrive
Guitarix is free, open-source software, distributed under the terms of
the GNU General Public License (GPL) version 2 or later.
Please refer to our project page for more information:
http://guitarix.org
Download Site:
http://sourceforge.net/projects/guitarix/
regards
hermann
_______________________________________________
Hi All,
I've been a reader on the list for a while, not a poster until now.
I am preparing to outfit a computer for songwriting in Linux.
I will be using the command line notation options, of which there are
rather
a few from Lillypond to muscript.
I am hoping that how I picture this will match the creative reality smiles.
My first question is this.
some high end soundcards that are supported in Debian? I know its been
updated, but I intend using squeeze for a start. Getting the floor solid
before say adding updated furniture.
While I know that four duplex cards are common, I want the best quality I
can find for the work.
say if you <hope this makes sense> wanted to connect a full sized piano
keyboard to the card?
Thanks in advance,
Karen
Ahoy!
Stepping up to Summer'15 release frenzy stage scene, in it's fourth and
hopefully last act,
Qtractor 0.7.0 (muon base beta) is out!
Qtractor [1] is an audio/MIDI multi-track sequencer application written
in C++ with the Qt framework [2]. Target platform is Linux, where the
Jack Audio Connection Kit (JACK [3]) for audio and the Advanced Linux
Sound Architecture (ALSA [4]) for MIDI are the main infrastructures to
evolve as a fairly-featured Linux desktop audio workstation GUI,
specially dedicated to the personal home-studio.
As a major highlight to this release, there's the advent of regular MIDI
controllers mapping/assignment to main application menu command actions,
just like normal PC-keyboard shortcuts, is being introduced (cf. main
menu Help/Shortcuts...).
Have a 'hotta' Summer'15 ;)
Enjoy.
Website:
http://qtractor.sourceforge.net
Project page:
http://sourceforge.net/projects/qtractor
Downloads:
http://sourceforge.net/projects/qtractor/files
- source tarball:
http://www.rncbc.org/archive/qtractor-0.7.0.tar.gz
- source package (openSUSE 13.2):
http://www.rncbc.org/archive/qtractor-0.7.0-18.rncbc.suse132.src.rpm
- binary packages (openSUSE 13.2):
http://www.rncbc.org/archive/qtractor-0.7.0-18.rncbc.suse132.i586.rpmhttp://www.rncbc.org/archive/qtractor-0.7.0-18.rncbc.suse132.x86_84.rpm
- wiki (help wanted!):
http://sourceforge.net/p/qtractor/wiki/
Weblog (upstream support):
http://www.rncbc.org
License:
Qtractor [1] is free, open-source Linux Audio [6] software,
distributed under the terms of the GNU General Public License (GPL [5])
version 2 or later.
Change-log:
- Complete rewrite of Qt4 vs. Qt5 configure builds.
- Revised MIDI Controlllers catch-up algorithm.
- Mixer multi-row layout gets a little bit of a fairness fix.
- Non-continuous MIDI Controllers now have their Hook and Latch options
disabled as those are found not applicable,
- As an alternative to PC-keyboard shortcuts, MIDI controllers are now
also assignable and configurable for any of the main menu command
actions, all from the same old configuration dialog (Help/Shortcuts...).
- Fixed missing Track and Clip sub-menus from Edit/context-menu that
were found AWOL ever since after the Lazy Tachyon beta release (> 0.6.6).
- An off-by-one bar position (as in BBT, bar, beat and ticks) has been
purportedly fixed as long as LV2 Time/Position atom event transfer goes.
- French (fr) translation line to desktop file added (patch by Olivier
Humbert, thanks).
- A new top-level widget window geometry state save and restore
sub-routine is now in effect.
- Improved MIDI clip editor resilience across tempo and time-signature
changes.
- Keyboard shortcuts configuration (Help/Shortcuts...) now lists
complete menu/action path where available.
- Fixed in-flight VST plugin editor (GUI) resizing.
- Added support to LV2UI_portMap extension, found really handy for the
cases where you have multiple plugins with different port configurations
and a single common UI to drive them all (pull request by Hanspeter
Portner aka. ventosus, thanks).
References:
[1] Qtractor - An audio/MIDI multi-track sequencer
http://qtractor.sourceforge.net
[2] Qt framework, C++ class library and tools for
cross-platform application and UI development
http://qt.io/
[3] JACK Audio Connection Kit
http://jackaudio.org
[4] ALSA, Advanced Linux Sound Architecture
http://www.alsa-project.org/
[5] GPL - GNU General Public License
http://www.gnu.org/copyleft/gpl.html
[6] http://linuxaudio.org
See also:
http://www.rncbc.org/drupal/node/917
Enjoy && keep the fun.
--
rncbc aka. Rui Nuno Capela
Jeremy, we shouldn't discuss this in the original thread.
There are latency test measurements in the mailing list archive. PCI and
PCIe cards show better results, IOW less MIDI jitter. There are also
explanations why USB suffers from more jitter.
The point of difference is, if the MIDI jitter is audible. It is! The
measurements might not provide correct results. To measure a system by
itself is a bad test and to measure a MIDI loop in addition is tricky.
Jakob (living in Augsburg) from a Linux mailing list (perhaps LAU or
LAD) years ago send me a board to loop through MIDI and that provides an
audio output, to record the MIDI signal to an audio track. I never had
time and interest to continued my MIDI jitter tests, so I still didn't
use it. I guess this would be a better test, then the latency test.
Howsoever, it's better to use PCI or PCIe, IIRC some USB interfaces
even fail(ed) the latency test that measures a MIDI loop. The USB
interface I own doesn't fail the test, but I'm anyway not satisfied and
use PCI and PCIe MIDI only.
That's it, I can't provide more information and I'm not willing to
search the mailing lists archives.
Regards,
Ralf
Hello !
The clean/drive amp sounds are interesting, the tube choice is fun.
Then I add a graphic eq, it modifies the sound not nicely (adds
distortion), I remove it, the sound remains modified. It is not back
to the amp sound before adding the graphic eq. 'Sounds' like a bug :)
Rotating the buttons with the mouse wheel can be tedious with some.
Left clicking will move the window. Right clicking seems to only allow
for minuet adjustments.
This is guitarix from upstream, gotten a few days ago.
Cheers.
