Linux-audio-dev

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3 participants
7448 discussions

by Raphaël BOLLEN

Hi, I'm trying to use jack's ringbuffer like this: - initialization: jack_ringbuffer_t * ringBuf = jack_ringbuffer_create(sizeof(jack_default_audio_sample_t) * (1<<16)); memset (ringBuf->buf, 0, ringBuf->size) ; - jack process callback: jack_default_audio_sample_t buf[numChannels]; size_t read_cnt = 0; for (_frameCounter=0; _frameCounter < nFrames; _frameCounter++) { read_cnt = jack_ringbuffer_read(ringBuf, (void*)buf, sample_size * numChannels); ^^^^^^^^^ error } but g++ won't compile the code and report this error: invalid conversion from 'void*' to 'char*' [-fpermissive] /usr/local/include/jack/ringbuffer.h:136: error: initializing argument 2 of 'size_t jack_ringbuffer_read(jack_ringbuffer_t*, char*, size_t)' [-fpermissive] passing -fpermissive gets the program running but is it the right way to do it? Thanks -- Raphaël.

11 years, 5 months

Re: [LAD] [LAU] [LAA] Guitarix release 0.26.0

by hermann meyer

Hi Jeremy Well, I'm sorry, I have just removed the 0.26.0 release and pushed out 0.26.1 Because of a error in the LV2/wscript (which I have introduced direct before I made the releaseO:-) ) 0.26.0 fail to build. please try again for 0.26.1 greets hermann Am 09.04.2013 15:51, schrieb Jeremy Jongepier: > On 04/09/2013 11:32 AM, hermann meyer wrote: >> I'm proud to announce the release of guitarix2-0.26.0 >> > > Hello Hermann, > > The archive seems to be corrupted: > > guitarix-0.26.0/src/LV2/DSP/12AT7.cc > > bzip2: Compressed file ends unexpectedly; > perhaps it is corrupted? *Possible* reason follows. > bzip2: Inappropriate ioctl for device > Input file = (stdin), output file = (stdout) > > It is possible that the compressed file(s) have become corrupted. > You can use the -tvv option to test integrity of such files. > > You can use the `bzip2recover' program to attempt to recover > data from undamaged sections of corrupted files. > > tar: Unexpected EOF in archive > tar: Unexpected EOF in archive > tar: Error is not recoverable: exiting now > > Regards, > > Jeremy > > _______________________________________________ > Linux-audio-user mailing list > Linux-audio-user(a)lists.linuxaudio.org > http://lists.linuxaudio.org/listinfo/linux-audio-user

11 years, 6 months

build troubles with gtklick

by Jörn Nettingsmeier

hi dominic! first of all, thanks for sharing your tools - klick has saved the day by adding a much-needed jack-transport aware metronome to a sooperlooper setup. now i'm a lazy bastard and want to use gtklick, but even though it compiles and installs fine, it barfs when i start is, like so: nettings@kleineronkel:/usr/lib/python2.7/site-packages/gtklick> gtklick Traceback (most recent call last): File "/usr/bin/gtklick", line 14, in <module> from gtklick.gtklick import GTKlick File "/usr/lib/python2.7/site-packages/gtklick/gtklick.py", line 30, in <module> import klick_backend File "/usr/lib/python2.7/site-packages/gtklick/klick_backend.py", line 12, in <module> import liblo ImportError: /usr/lib64/python2.7/site-packages/liblo.so: undefined symbol: lo_address_new_with_proto i have tried both liblo-0.26 and current liblo svn, no luck. now the python paths in this openSUSE tumbleweed install are a horrible mess, with three different python versions and libs in /usr/lib, /usr/lib64, and /usr/local/lib64. but they all seem to be found, and i made sure that the liblo.so mentioned in the error message is actually the one from your pyliblo package (by copying it manually). i removed the build directory of pyliblo for each try, and also recreated liblo.c via cython. how do i proceed to fix this? best, jörn -- Jörn Nettingsmeier Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487 Meister für Veranstaltungstechnik (Bühne/Studio) Tonmeister (VDT) http://stackingdwarves.net

11 years, 6 months

A3 beat/measure lines

by Fons Adriaensen

Is there any way to completely switch off the vertical measure/beat lines in Ardour3's edit window ? Changing the colors to hide them won't do because they are on more than one background. If not, I'd suggest to not draw them when the corresponding bars on top are disabled. Ciao, -- FA A world of exhaustive, reliable metadata would be an utopia. It's also a pipe-dream, founded on self-delusion, nerd hubris and hysterically inflated market opportunities. (Cory Doctorow)

11 years, 6 months

Python Non-Session-Manager Client Module (version 0.1)

by Nils Gey

Dear Developers, I've written a convenience interface to implement Non Session Management as fast and easy as possible in Python 3 applications. It is no magic programming at all, but it makes things just that tiny bit easier that is required to actually implement something, and not only plan it. The real work is to follow the rules of a managed system (see http://non.tuxfamily.org/nsm/API.html ). So implementing the technical side should be a no-brainer to let you focus on the actual task. pynsmclient is open source under the GPL3 or later and can be found on my github page so you can start using it right away. https://github.com/nilsgey/pynsmclient I also have written a short article in my blog about that topic http://nilsgey.de/?id=24 Greetings, Nils

11 years, 6 months

rtirq update - 2013 edition (was: rtirq as systemd service?)

by Rui Nuno Capela

(apologies for the x post again, now with url typo corrected) > On 03/30/2013 11:50 AM, Simon Lewis wrote: > > Since fc17 upwards uses systemd and not sysvinit, should rtirq be made a > systemd service? > rtirq has been updated for both old sysvinit and the new systemd support. upstream packages available: http://www.rncbc.org/archive/#rtirq http://www.rncbc.org/archive/rtirq-20130402.tar.gz http://www.rncbc.org/archive/rtirq-20130402-31.src.rpm http://www.rncbc.org/archive/rtirq-20130402-31.noarch.rpm cheers && thanks -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

11 years, 6 months

rtirq update - 2013 edition (was: rtirq as systemd service?)

by Rui Nuno Capela

(apologies for the x post) > On 03/30/2013 11:50 AM, Simon Lewis wrote: > > Since fc17 upwards uses systemd and not sysvinit, should rtirq be made a > systemd service? > rtirq has been updated for both old sysvinit and the new systemd support. upstream packages available: http://www,rncbc.org/archive/#rtirq http://www,rncbc.org/archive/rtirq-20130402.tar.gz http://www,rncbc.org/archive/rtirq-20130402-31.src.rpm http://www,rncbc.org/archive/rtirq-20130402-31.noarch.rpm cheers && thanks -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

11 years, 6 months

[ALPHA] ladspa.m.*

by Florian Paul Schmidt

Hi, after a somewhat productive weekend I'm happy to announce some alpha quality software (i.e. bug ridden, not feature complete) for your consideration and feedback :) But: release early, release often XD I went a little overboard with modularization and separation of concerns, so in the end it became four packages (with possibly one more in the future - a LV2 plugin to load the synths/instruments). Documentation is also very much lacking, but each package contains at lease a single example file to illustrate the usage. * ladspa.m - https://github.com/fps/ladspa.m ladspa.m is a header only c++ library to build and run general synthesis graphs made up out of LADSPA plugins. The interface is kept deliberately kept simple and unsafe, as it is expected that one uses higher level tools to build these synthesis graphs (e.g. using a library on top op ladspa.m.swig or ladspa.m.proto). * ladspa.m.swig - https://github.com/fps/ladspa.m.swig ladspa.m.swig are SWIG generated python bindings for ladspa.m. This allows building and running general synthesis graphs made up of LADSPA plugins from within python. This requires ladspa.m. NOTE: I just saw that the swig interface definition lacks the ability to connect outside buffers onto plugin ports. This will be fixed in the next few days.. * ladspa.m.proto - https://github.com/fps/ladspa.m.proto ladspa.m.proto contains google protobuf definitions for general synthesis graphs made up of LADSPA plugins. It also contains a definition for an instrument file format. This library does not depend on either of the two above. It becomes useful with the last package (ladspa.m.jack) and possibly in the future with an LV2 plugin to load and run these (to be announced when done). The python bindings generated for ladspa.m.proto can be used to generate synth and instrument files that can be loaded by ladspa.m.jack. The instrument file definition allows for polyphony while at the same time putting no constraints on the inner structure of the instrument (each voice is made up out of plugins, they can be identical or not between all voices).. An example is included which defines a simple sawtooth instrument with exponential envelopes and with 5 identical voices except for a different delay setting on each voice. https://github.com/fps/ladspa.m.proto/blob/master/example_instrument.py Pipe its output into a file called e.g. instrument.pb. This you can then load into ladspa.m.jack.instrument. Here's a little example of the generated instrument file loaded into ladspa.m.jack.instrument and playing a little 120bpm loop (from ardour3) with it: https://soundcloud.com/fps-2/t-m This also highlights the need for a higher level interface on top of it to ease the process.. * ladspa.m.jack - https://github.com/fps/ladspa.m.jack ladspa.m.jack is a library which allows loading ladspa.m.proto synth and instrument definition files into jack hosts that are provided as example clients. ladspa.m.jack.synth allows loading a synth definition file and run it in the jack graph. ladspa.m.jack.instrument allows loading an instrument definition file and provides a midi in port which allows playing the synth. But like I said this is all ALPHA software and I just announce it because someone else might have fun with it. Please report all issues that you find either per email to me, on LAD or LAU or on the issue trackers of the github projects.. Have fun, Flo -- Florian Paul Schmidt http://fps.io

11 years, 6 months

[ANN] QjackCtl 0.3.10 - The singing swan rehearsals...

by Rui Nuno Capela

Who would tell or whisper such a thing? Is this an april fool's announcement? nope. QjackCtl 0.3.10 is out! Website: http://qjackctl.sourceforge.net Project page: http://sourceforge.net/projects/qjackctl Downloads: - source tarball: http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10.tar.gz - source package (openSUSE 12.3): http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10-2.rncbc.suse123.s… - binary packages (openSUSE 12.3): http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10-2.rncbc.suse123.i… http://downloads.sourceforge.net/qjackctl/qjackctl-0.3.10-2.rncbc.suse123.x… Weblog (upstream support): http://www.rncbc.org License: QjackCtl is free, open-source software, distributed under the terms of the GNU General Public License (GPL) version 2 or later. Change-log: - Session infra-client management finally being added. - Preparations for Qt5 migration. - Transport tempo (BPM) precision display fixed to 4 digits. - Color-candy (dang old ANSI terminal?) escape sequences are now silently stripped from jackdbus messages captured log (one-liner from original patch by Brendan Jones, thanks). - List ALSA device card id. string instead of device number, while on setup dialog. - Japanese (ja) translation added (by Takashi Sakamoto). See also: http://www.rncbc.org/drupal/node/628 Enjoy && Have fun! -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

11 years, 6 months

Is dynamics interpolation available in linuxsampler?

by Nikita Zlobin

Last time i tried to make a roll with G-Town Church Bassdrum, but it appears ugly. Did not try to humanize timing, but expecting it much better with interpolation. May be, it is some hidden feature, which is not used in most freeware gig and sfz banks?

11 years, 6 months

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Linux-audio-dev