Linux-audio-dev

linux-audio-dev@lists.linuxaudio.org

3 participants
7520 discussions

by hermann

guitarix is a simple Linux Rock Guitar amplifier and is designed to achieve nice thrash/metal/rock/blues guitar sounds. Guitarix uses the Jack Audio Connection Kit as its audio backend and brings in one input and two output ports to the jack graph. Release 0.05.9-1 : * add Midi learn (by Andreas Degert) * add internal direct convolution unit with 7 filter kernel (amp models) * add LADI level1 support * add a new light skin * reworked multi thread handling(by Andreas Degert) * reduced CPU usage for Oscilloscope To the midi learn function: a middle mouse button click on a controller pop's up a little widget, move the midi controller you will use, the controller number is shown in the widget. Press OK when you've done. That's it. By the way, a right click on a controller pop up a spinbox for direct enter the value with your keybord. have fun ________________________________________________________________________ guitarix is licensed under the GPL. Project page with screenshots: http://guitarix.sourceforge.net/ download: http://sourceforge.net/projects/guitarix/ For capture, guitarix uses the external application 'jack_capture' (version >= 0.9.30) written by Kjetil S. Matheussen. If you don't have it installed, you can look here: http://old.notam02.no/arkiv/src/?M=D For extra Impulse Responses, guitarix uses the convolution application 'jconvolver' created by Fons Adriaensen. If you don't have it installed, you can look here: http://www.kokkinizita.net/linuxaudio/index.html I(hermann) use faust to build the prototype and will say thanks to : Julius Smith http://ccrma.stanford.edu/realsimple/faust/ : Albert Graef http://q-lang.sourceforge.net/examples.html#Faust : Yann Orlary http://faust.grame.fr/ regards Hermann Meyer, James Warden, Andreas Degert

15 years, 10 months

Fix for arpage 0.2 zero-velocity note-on events now in SVN

by Mark Vitek

Hi all, I've committed to SVN an update to arpage which fixes a problem in which arpage would not recognize a note-on event with zero-velocity as a note-off event. If anyone is experiencing problems with MIDI keyboards apparently not sending note-offs, you should probably pick this up from the SVN repository. But having said that, I'll probably have a dot release within a few days so that I can get the fix into the PPA. If anyone has ideas for something (simple!) they want added/fixed, let me know and I'll try to get it into the dot release. Thanks, Mark Vitek On Wed, Jan 13, 2010 at 10:53 PM, Mark Vitek <straypacket(a)gmail.com> wrote: > Hello all, > > The second development release of arpage is available on sourceforge in > source tarball and SVN formats: > > Tarball: http://sourceforge.net/projects/arpage/ > > SVN: https://arpage.svn.sourceforge.net/svnroot/arpage/branches > https://arpage.svn.sourceforge.net/svnroot/arpage/tags > > I'd like to thank everyone for the feedback I received on 0.1 - Please > check this out and let me know what you think, or if you have problems > building/running. > > The UI is still dead-boring GTK, but I've read back over the LAD threads > regarding audio-oriented UI libraries and I'm thinking of investigating > libproaudio with the next release. > > > The 0.2 Development release adds: > > - Smaller UI - probably not Netbook friendly yet, but getting closer :) > > - UI should be dependent upon GTK+ 2.12 (rather than 2.16 as with the first > release). > > - An additional executable named "zonage" which allows the MIDI note input > to be split into 4 ranges. > This is useful for routing sections of your MIDI keyboard to different > JACK inputs - e.g. route the lower half to arpage, and the upper half to a > "lead" sound, so you can "solo" over the arpeggiator. > > - The ability to have a pulse duration (time between note-on and note-off) > be longer than the interval between pulses (time between note-on and > subsequent note-on). > This is useful when routing the output of one arpeggiator to the input of > the next arpeggiator. Experiment and hear it :) > > - Noticeable decrease in the number of stuck notes (I haven't experienced > ANY with this version yet). > > > Basic features/requirements (same as 0.1 Alpha): > > - svn / tarball only for now > - gtkmm-based, so dev packages for gtkmm and friends are needed to build > (and obviously jack) > - I've only built it on Ubuntu Studio (karmic) 64bit. I'm looking for > others to let me know if it builds/runs elsewhere. > > - requires JACK time master to be rolling for the arpeggiators to do > anything. Qtractor and Seq24 have worked well for me. > - will pass midi events thru when JACK time master is not rolling. > > - 4 arpeggiators with transpose, interval, range, note duration selectable > thru UI. > - Each arp has it's own JACK midi in and out port, so you can cascade > arpeggiators. > > - Preliminary support for scales and modes - all of them are not correct, > but try major, dorian, diminished and augmented for starters :) > > It sounds great with each arpeggiator driving an instance of calf mono. > Check out the ogg/mp3 clip on sourcefourge. > > Thanks all, > > Looking forward to any and all feedback. > >

15 years, 10 months

ttsoot - yet another DSP library :)

by torbenh

hi... i am working on a c++0x DSP library. variadic templates prove to be a nice way to handle the massive function inlining required to build efficient samplebased processing graphs. the idioms i am currently using for the containers require gcc-4.5 though, so this is still a bit of a show-stopper :) its still in a pretty early state. but you can already see where its heading. if somebody is interested: http://hochstrom.endofinternet.org/trac/ttsoot/wiki -- torben Hohn

15 years, 10 months

Linux Audio Conference 2010

by Marc Groenewegen

Dear Linux Audio developer, user, composer, musician, philosopher and anyone else interested, you are invited to the... Linux Audio Conference 2010 The conference about Open Source Software for music and audio May 1-4 2010 Hogeschool voor de Kunsten Utrecht (HKU) Utrecht, The Netherlands Registration is open, and so is the call for abstracts and papers. More information can be found on the website: http://lac.linuxaudio.org/2010 For previous editions, look here: http://lac.linuxaudio.org For concerts, music and workshops a submission system and protocol will be available soon. In the meantime, ideas and announcements can be sent by e-mail ("lac -at- linuxaudio -dot- org ") or written on the wiki: http://wiki.linuxaudio.org/lac2010 We hope to see you all in Utrecht ! Kind regards on behalf of the LAC team, Marc Groenewegen, lecturer music software design @ HKU

15 years, 10 months

Trying to understand Jack Midi, (Arpage, Dino)

by james morris

Hi, I recently was testing out Seq24 >> Arpage >> Yoshimi, and it sounded terribly out of time. This is on a fairly new Gentoo install so I wondered if something was misconfigured. I also tried the first release of Arpage and same result. Then I noticed the latency of the Jack settings in use was quite high and reset it to give a much lower latency which completely fixed the timing problems the above seq/arp/synth setup was having. The next test involved the Dino sequencer, but before doing so I attempted to change the Jack settings to give a really bad latency, 170ms+. Jack could not start with such high latencies - the Alsa driver would not load IIRC. I reset the Jack settings for the worst latency I could get with Jack starting, but the timing in Dino although far from perfect, was nowhere near as bad as Arpage. 1) Is there any way to improve Jack Midi timing when the audio driver has a high latency? 2) What is the reason the Alsa driver/Jack would not start when the settings give a big 170ms+ latency? BTW, I'm doing this stuff so I can program with Jack Midi. TIA, James.

15 years, 10 months

Canonical sound position opening

by Forwind info

Hi all, A new position has come up at Canonical (ubuntu) for a sound software engineer. Details are below. You can apply online from here http://webapps.ubuntu.com/employment/canonical_UDSE/ Job Title: Ubuntu Desktop Sound Engineer Posting Date & id: February 2010 UDSE Job Location: Your home, given appropriate facilities including broadband Internet Reports to: Ubuntu Desktop Team Manager Job Summary: We are seeking a Desktop Integration Engineer to play a key development and integration role on the Ubuntu Desktop Team one of the technical teams that makes up the Ubuntu Platform Team. As part of the core Ubuntu team, the Engineer will work on a broad range of technical tasks: including feature planning, packaging, integration,bugfixing and maintenance. The successful candidate will ensure a first class user experience by packaging, bug fixing and development of Pulseaudio and related sound technology and applications. Strong communication and relationship skills are as important as superb technical skills in this role, as the successful candidate will be responsible for process communication and coordination between Ubuntu and external partners, as well as ensuring commonality of purpose and technical approach. This job involves international travel several times a year, usually for one week. Key Responsibilities and Accountabilities: Take on primary maintenance of some components of the Ubuntu Desktop, covering sound related areas. • Engage in bugfixing work across a wide variety of components of the Ubuntu platform. • Assist in prerelease testing of Ubuntu, taking personal ownership of problems and driving them to • solutions. Collaborate with other teams in the Ubuntu community and with upstream developers where appropriate, • to make sure that Ubuntu includes the very best in free software and that our goals are taken into account by other projects. Work directly with OEMs or in conjunction with the Canonical OEM team to address customer needs on • aggressive time lines. When necessary, respond to and work to resolve issues raised by end users and commercial support • customers. Required skills and experience: Familiarity with open source development tools and methodology, especially those in common use for • Ubuntu and Debian package maintenance. Strong understanding of the makeup of a modern GNU/Linux distribution. • Strong interests and experience with a variety of the software that makes up the core of Ubuntu. • Strong interests and experience with Pulseaudio, Alsa, and other sound related technology and • applications on Linux. Capacity to learn quickly about new systems and techniques. • Handson experience with concepts of agile development and lean software engineering. • Deep understanding of, and extensive use of, desktop operating systems; especially the GNOME and • KDE platforms. Excellent English communications skills. • Excellent online communications skills, including IRC, email, and other online venues. • Ability to be productive in a globally distributed team through selfdiscipline and selfmotivation, • delivering according to a schedule. Ability to collaborate in real time with team members in Eastern US and European time zones. •

15 years, 10 months

Fw: [Freewheeling-user] Is freewheeling developing halted?

by Renato

Hello, I'm forwarding this from the freewheeling-user mailing list hoping to find someone interested in bringing on the development of this bright and lovely piece of software. cheers Renato -------------------------------- Begin forwarded message: Date: Sat, 05 Dec 2009 12:20:59 -0700 From: Jan Mercury Pekau <swirlee(a)vcn.bc.ca> To: Jorge Salgueiro <jorge.salgueiro(a)gmail.com> Cc: freewheeling-user(a)lists.sourceforge.net Subject: Re: [Freewheeling-user] Is freewheeling developing halted? Jorge, I hate to admit how distant I've been from Freewheeling. Life keeps changing and I find myself moving on. I don't think I will do any development anytime soon. Is there someone willing to continue on? Jan Jorge Salgueiro wrote: > Do you plan to keep the develop of freewheeling? The last version is > from a year ago, and maybe you are distracted with REAL LIVE(tm), but > it would be a shame to let such a great program pass away... Please > keep on! And to everybody interesed in freewheeling with programming > skills, please be active! > > Cheers! And thanks for all the hard work! > > Atentamente, Jorge Salgueiro (Incitec S.L.) > ______________________________________ > Use GNU/Linux: free culture for a free society > > > ------------------------------------------------------------------------ > > ------------------------------------------------------------------------------ > Join us December 9, 2009 for the Red Hat Virtual Experience, > a free event focused on virtualization and cloud computing. > Attend in-depth sessions from your desk. Your couch. Anywhere. > http://p.sf.net/sfu/redhat-sfdev2dev > ------------------------------------------------------------------------ > > _______________________________________________ > Freewheeling-user mailing list > Freewheeling-user(a)lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/freewheeling-user > ------------------------------------------------------------------------------ Join us December 9, 2009 for the Red Hat Virtual Experience, a free event focused on virtualization and cloud computing. Attend in-depth sessions from your desk. Your couch. Anywhere. http://p.sf.net/sfu/redhat-sfdev2dev _______________________________________________ Freewheeling-user mailing list Freewheeling-user(a)lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/freewheeling-user

15 years, 10 months

dead audio projects worth resuming

by Renato

Hello, I propose to collect in this thread a list of audio programs which could give a great contribute to the linux audio experience, but can't due to halted development, leaving them in a usable or less usable state. This list could then be used for developers in search of some worthy/interesting project to contribute to. I propose two programs who aren't developed anymore: rezound jack-rack I really love them and I feel sorry there's no developer taking care of them. Hope this can be useful Renato

15 years, 10 months

X Window Midi Arp Toy

by james morris

I think this has some potential if it were realized as an application with it's own window space and dedicated widgets rather than as a bash script utilizing xterms and window-manager window-placement. It maps the positions of the popup xterms to note-pitch and note-velocity. I don't know though, it's probably been done already.. I sent it to LAU.. Here's the text describing it further, which probably is a good idea to read quickly: http://jwm-art.net/art/text/xwinmidiarptoy.txt Here's the actual BASH script: http://jwm-art.net/art/text/xwinmidiarptoy james.

15 years, 10 months

Re: [LAD] dead audio projects worth resuming

by humbert.olivier.1＠free.fr

Hi, I made on linuxmao.org a glossary for softwares. You can find the master's page here : http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Glossaire+des+logiciels When I begun this project, it was a single listing-page with all softs that have a dedicaced page on linuxmao.org, but after watch this first list grown and grown and grown, I decided to cut it on : 1) actual (has an update since january 2009) : http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Liste+des+logiciels+li… 2) almost-actual (last update between januray 2005 and january 2009) : http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Liste+des+logiciels+li… 3) museum-section (last update before 2005) : http://www.linuxmao.org/tikiwiki/tiki-index.php?page=La+section+mus%C3%A9e there is too a special page with ladpsa/dssi/lv2 plugins and host/protocol : http://www.linuxmao.org/tikiwiki/tiki-index.php?page=Liste+des+greffons and few others that you can find on these pages. All of this is in french (enjoy ! ;) ) That being said, if at the begining, i was alone on this work, now it's a team work and we made "software versions surveillance" each month, so, it's up-to-date. Bye, and happy to hear something who make me thing that reZound can will be reworked/update :D Olivier, http://www.linuxmao.org

15 years, 10 months

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Linux-audio-dev