Linux-audio-dev

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7535 discussions

[LAD] New mailing list for Android Audio Developers

by Olivier Guilyardi

Hi everyone! I am glad to announce the creation of the andraudio mailing list, dedicated to audio development on Android, at: andraudio(a)music.columbia.edu More info and subscribing: http://music.columbia.edu/mailman/listinfo/andraudio This list is meant to be a place to discuss about audio development, in the context of music and sound applications, but also games and other apps which use audio on Android. Discussions and questions about both Java and native APIs are welcome. In addition to application-level topics, we are interested in discussing about Android audio system internals, for educational purposes, as well as finding new ways to work with sound on Android. So please come and join us if audio development on Android interests you. -- Olivier

15 years

[LAD] [LAA] [ANN] guitarix released gx_head

by hermann

I'm happy to announce the first public release of gx_head. gx_head is a simple guitar mono tube amplifier simulation based on the work we have done in the guitarix project. gx_head provide 3 tube models (12AX7, 12AU7, 6V6) and 8 different tonestack models(Bassman, Twin Reverb, Princeton, JCM-800, JCM-2000, M-Lead, M2199, AC30), so you can simply create the amp-model to your needs. gx_head comes with a bunch of in-build effects, like distortion, crybaby, autowah, phaser, flanger, echo, delay, . . . The effects could ordered in two Racks, on for the mono effects, witch could be load for pre or post processing, and one for the stereo effects, witch could only used in post processing. Effects are loadable over the menu, a pop-up menu in the racks, or a plugin bar. Settings could saved/load as presets. gx_head comes with some factory settings provided by guitarix/gx_head friend "funkmuscle", thanks therefore. All UI controllers could connected with jack midi via MIDI learn with your external MIDI controllers. gx_head is ready for language support via gettext() and comes thanks to Pablo Fernández with a Spanish translation. The style file gx2 is contributed by zettberlin, thanks Hartmut some features in short: * 8 tonestack models * 3 tube models * cabinet impulse response module * bass boster * easy Impulse Response file support via zita-convolver * on the fly IR-file resampling via zita-resampler * Oscilloscope and tuner * multi band distortion model * scalable EQ * phaser, flanger, stereo delay, stereo echo, * overdrive, compressor, freeverb, reverb, * chorus, moog filter, low/high pass filter, . . * MIDI learn * Patch Info widget * Preset File Load/Export option * factory settings * language support * shining User Interface via GTK/gtkmm * . . . . have fun _________________________________________________________________________ gx_head is licensed under the GPL. screenshots: http://sourceforge.net/apps/wordpress/guitarix/ direct download: http://sourceforge.net/projects/guitarix/files/gx_head/gx_head-0.12.0.tar.b… download: http://sourceforge.net/projects/guitarix/ please report bugs and suggestions in our forum here: http://sourceforge.net/apps/phpbb/guitarix/ ________________________________________________________________________ For extra Impulse Responses, gx_head uses the zita-convolver library, and, for resampling we use zita-resampler, both written by Fons Adriaensen. http://www.kokkinizita.net/linuxaudio/index.html We use the marvellous faust compiler to build the amp and effects 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/ ________________________________________________________________________ For faust users : All used Faust dsp files are included in /gx_head/src/faust, the resulting .cc files are in /gx_head/src/faust-cc The tools we use to convert (post-processing and plot) the resulting faust cpp files to the needed include format, stay in the /gx_head/tools directory. ________________________________________________________________________ regards guitarix development team

15 years

[LAD] the most kickass conference presentation i've ever seen...

by Jörn Nettingsmeier

from 27c3 :it's short, sweet, spectacular, and does away with the "sorry my laptop doesn't work with the projector" dilemma :-D http://www.youtube.com/watch?v=yEG68O6jpjo&feature=player_embedded

15 years

[LAD] interview with Dave Smith

by Dave Phillips

Greetings, http://www.kvraudio.com/interviews/interview_with_dave_smith Not very deep, but enjoyable. "Avoid Kansas". Great advice. :) Best, dp

15 years, 1 month

[LAD] ALSA multi plugin and JACK xrun callbacks

by Lee Azzarello

Hello, I'm looking for some advice for an interesting symptom of putting my M-Audio Fast Track Pro USB sound card into ALSA multi mode. This sound card has four physical outputs which are mapped to two 2 channel ALSA streams rather than one four channel stream. I used the ALSA multi plugin to combine these two streams into a single pcm device so JACK can interface with all four outputs. It is working nicely. Despite no perceptible problems in sound quality or latency, jackd is printing hundreds of XRUN callback warnings to the message console each second! I can operate the system perfectly fine, run multiple applications, connect them to the four virtual outputs with no audible timing issues. What is the meaning of this many XRUN callbacks per second? What kind of performance will this impact if not sound playback? Thanks for your help, Lee Azzarello

15 years, 1 month

Re: [LAD] [LAU] [ANN] IR: LV2 Convolution Reverb

by Tom Szilagyi

On 13 January 2011 21:57, Darrin Thompson <darrinth(a)gmail.com> wrote: > > Dumb n00b question: > To use a convolution reverb one needs a recording of an impulse response > right? If I found a random one on the internet would it tend to work ok in > any reverb or do I need one made especially for the reverb implementation > I'm using? Technically, an impulse response is just an ordinary soundfile. Of course it has a certain soundfile format, sample format, channel count and samplerate, but if these are compatible with the convolution reverb you're loading it into (you can successfully load it into the plugin) then yes, it should generally work. Of course there are proprietary convolution reverbs that are bundled with impulse responses in a proprietary format, meaning that these impulses are not plain soundfiles, but are in some proprietary (and secret) binary format. Naturally, you cannot use those (and I guess if you could somehow reverse engineer the impulses into an "open" soundfile format, which would technically allow you to use the impulses in an open source plugin, the EULA of that plugin's license would have a word about it). Tom

15 years, 1 month

[LAD] Linux Audio Conference 2011: Paper submission deadline extended

by Frank Neumann

Dear all, for the Linux Audio Conference 2011(*) in Maynooth, Ireland, we have extended the deadline for paper submissions to February 20th, 2011. So, if you have considered handing in a paper but couldn't make up your mind yet, here is your chance to become active! Never forget that this conference lives through the people participating in it. The deadline for music submissions has been set to the same date. Notification of acceptance of submitted papers has been aligned slightly as well, and will be sent out on March 15th, 2011. (*) http://lac.linuxaudio.org/2011 Please spread this information to anyone who might be interested. Direct any questions through email to lac(a)linuxaudio.org. Thanks, Frank

15 years, 1 month

[LAD] pd-l2ork 20110109 snapshot now available

by Ivica Ico Bukvic

Please pardon cross-posting. Changelog: *fixed major CPU hit due to a bug in Cord Inspector implementation. Now the CPU usage is back to what it is in pd-extended. *further performance optimizations to the Cord Inspector. *improved edit mode detection and fixed edit menu activation accordingly. Latest snapshot is available from the usual place: http://l2ork.music.vt.edu/main/?page_id=56 Complete changelog since 11/25/2010 is available here: http://l2ork.music.vt.edu/data/pd/Changelog Best wishes, Ico

15 years, 1 month

[LAD] Fwd: Devs needed for opensource virtual analog softsynth idea

by Sascha Schneider

Alsa Modular, is this one still under development?? I never have tested it and never saw a UI that I could use to controll it with external USB controllers. I'll check that .... regards, saschas 2011/1/2 Julien Claassen <julien(a)c-lab.de>: > Hello Sascha! > I'm not good at coding at all, but I think a more useable framework for a > softsynth, if you like to build it with an existing one, might be bristol. > Bristol is a synth emulator. It has a couple of synths already. But it might > not suffer, having a new filter or different oscillator in it, if Nick is OK > with that. The synths it emulates, are basically built from the components > (filters, oscs, etc.), that are in the engine. Then they are connected in a > particular way and get a GUI/CLI put on top of them. Bristol has, what I > would call MIDI learning. You can easily assing MIDI controls to controls of > the currently loaded synth and I think you can save them as well. Have a > look at his site: > http://bristol.sf.net > The sweet thing about using this would be, that you have to implement the > new components and then there is an API - so I believe - for relatively > easily constructing the connections and the <UIs. I know only of the textUI, > which is very clever and helpful! > Kindly yours > julien > > -------- > Music was my first love and it will be my last (John Miles) > > ======== FIND MY WEB-PROJECT AT: ======== > http://ltsb.sourceforge.net > the Linux TextBased Studio guide > ======= AND MY PERSONAL PAGES AT: ======= > http://www.juliencoder.de >

15 years, 1 month

[LAD] pd-l2ork 20110105 snapshot now available

by Ivica Ico Bukvic

Please pardon cross-posting. Changelog: *fixed segfault when doing to-front/back without any object being selected *added enabling/disabling menu options when appropriate (e.g. cannot cut/paste if nothing is selected) *bound relevant canvas actions to the menu actions so that they can be invoked only if the menu actions are enabled (e.g. cut/copy/paste etc.) *requires further testing *relevant menu options reflect changes across all Pd windows (e.g. duplicate) *added special behavior for the cut/copy/paste menu in the root window *added previous window to the Window menu Latest snapshot is available from the usual place: http://l2ork.music.vt.edu/main/?page_id=56 Complete changelog since 11/25/2010 is available here: http://l2ork.music.vt.edu/data/pd/Changelog Best wishes, Ico

15 years, 1 month

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Linux-audio-dev