Linux-audio-user December 2012

linux-audio-user@lists.linuxaudio.org

116 participants
113 discussions

CALL FOR MUSICIANS / Beast 0.7.6 release

by Tim Janik

CALL FOR MUSICIANS ================== If you are a musician and interested in Free Software, the Beast project needs your input. You can contribute with testing, feature feedback, demos and tutorials. Please see our website: http://beast.testbit.eu/ BEAST RELEASE ============= BEAST/BSE version 0.7.6 is available for download at: http://beast.testbit.eu/beast-ftp/v0.7/ This release is largely a bug fix release that improves stability and interoperation with system libraries. This is a development version of BEAST/BSE, the Better Audio System and the Better Sound Engine. BEAST is a powerful music composition and modular synthesis application released as Free Software under the GNU LGPL that runs under Unix. The "Better" portion of the name refers to the complexity and many interations involved in implementing such a "BEAST" (pun intended). The About page covers more details: http://beast.testbit.eu/about Contact information about mailing lists, IRC, Bugzilla and more is at: http://beast.testbit.eu/Beast_Contact GUI skins, example sounds and instrumets for BEAST/BSE as well as screenshots can be found at: http://beast.testbit.eu/Beast_Sound_Gallery http://beast.testbit.eu/Beast_Screenshots The 0.7 development series of Beast focusses on improving usability and ease of music production. Feedback is very much appreciated, please take the opportunity and provide your comments and questions in our forums like the Beast Wiki or the mailing list, all of which can be reached through: http://beast.testbit.eu/. TRANSLATORS: Please help us to improve the BEAST translation, just download the tarball, edit po/<LANGUAGE>.po and email it to us or submit translations directly via transifex: https://www.transifex.net/projects/p/gnome-org-beast/resource/messagespot/ Overview of Changes in BEAST/BSE 0.7.6: * Packaging fixups, download and integrate documentation from beast wiki. * Work around regressions introduced in recent GLib and GTK+ versions. * Various bug and leak fixups. * Moved lots of code to C++. * Build documentation with doxygen. * Code fixups for g++-4.4, g++-4.7. * Improved DavOrgan frequency handling. -- Yours sincerely, Tim Janik --- http://timj.testbit.eu/ - Free software Author

12 years, 10 months

Pro Audio? OT rant.

by John Murphy

As a newcomer to the "Pro Audio" industry and a long time *nix user (somewhat mitigating this outburst here) I must say I'm not impressed. I've spent thousands recently and found suppliers either just don't 'know' the products they sell, or purposely misrepresent them. In one instance it took nearly a month to obtain a refund! For RME products; the 'bundled' word seems to be the one to watch out for. If it's a Multiface II bundled with a card, then double check. Same for UCX bundled with remote controller. I'd be getting on with building a new rack right now, but I've just received half a pair of brackets from a UK supplier and there's hardly anything more useless than half a pair of rack brackets. Grr. Why must I have so many microphone inputs? I'm a solo poet/musician with one mic. and enough places to plug it in to sink a battleship. Synth manufacturers: Why no ADAT out? But what really annoys me are the presumptions I had about my best synthesiser/drum machine's MIDI capabilities. You'd probably similarly presume an state-of-the-art instrument designed by Dave Smith and Roger Linn would be spot on in the MIDI dept, but it isn't. Six stereo 'voice' outs, but FIXED PITCH! To be fair(er) the OS is still in development... I don't resent Dave Smith getting a Technical Grammy though. Not at all. I've been having fun with MIDI for an awful long time. http://www.factmag.com/2012/12/13/dave-smith-father-of-midi-to-receive-spec… -- John. (Definitely feeling better for having shared my frustration.)

12 years, 11 months

Dual Delta Setup

by Ben Bell

Hi all, Having recently acquired a second Delta 1010 for my setup I've been trying to run the two in tandem using the alsa Multi hack. I'm getting the xruns that I understand are expected but harmless[1] but I'm also getting some audible ones, which are obviously more of a problem. They're synched via the S/PDIF link and running either card on its own seems pretty solid. I've seen on various mailing lists people talking about digging into this but not found any conclusions. Is anyone here running dual Delta 1010s who can double check I'm running the latest recommended settings? I'm on a dual core 2.3GHz Athlon (4450e), running linux 3.2.0-2-rt with cpu scaling disabled, and the cards have exclusive use of IRQs 17 and 18. Jack is running at 44.1KHz with 6 frames and 64 periods, audio IRQs at rtprio 85 and Jack at rtprio 82. bjb [1] http://www.jrigg.co.uk/linuxaudio/ice1712multi.html

12 years, 11 months

asoundrc questions

by John Murphy

I'm trying to follow the example .asoundrc provided at http://alsa.opensrc.org/RME_Hammerfall_.asoundrc I've read elsewhere that references to 'card 0', 'card 1' etc. can not be relied upon to always refer to the same card. It wouldn't matter, I suppose, if there are only two identical cards, but I have another two. One is switched off in the BIOS, but the other always shows up like: card 0: NVidia [HDA NVidia], device 3: HDMI 0 [HDMI 0] But not always as 'card 0'. I've configured a udev rule which always names my two RME cards as RME_1 and RME_2, so can I use those names in place of the card N designations? Are the strings which contain "9652" in the example just made up? Or are they references to the author's udev dabblings? The first one is particularly confusing as it's the only case of rme9652_s. Lastly; I don't suppose there's anything which can sanity test an .asoundrc, so will there be complaints logged somewhere if I get it wrong? -- Thanks again, John.

12 years, 11 months

Re: [LAU] Pro Audio? OT rant.

by Charles Henry

On Mon, Dec 31, 2012 at 4:01 PM, Folderol <folderol(a)ukfsn.org> wrote: > On Mon, 31 Dec 2012 15:39:45 -0600 > Charles Henry <czhenry(a)gmail.com> wrote: > > > However, phase shifts aren't much of a problem by themselves--they're all > > over the place in any typical multi-driver system and placement in the > room > > matters just as much. The loudspeaker crossover introduces the same > effect. > > A slight digression... > For a long time I've wondered if the ear, being a non-linear 'device' can > actually detect absolute phase at low frequencies. i.e. if the > compressions and > rarefactions were swapped, would it sound different? > > To test this with a mono source presumably all you'd have to do would be to > have an asymmetric signal and swap the speaker leads, but how would you > objectively test the listener? > > -- > Will J Godfrey > You design a psychoacoustic experiment. The case you mentioned is a very narrow case to look at how the ear discriminates phase differences. Objectively determining if/how the listener has a different response with differences in phase is just plain scientific experiment design. Psychoacoustics tends to have some very interesting experimental methodologies. I used to read a lot of papers and was frequently surprised how clever the experiments are. Phase-locking is *very* significant in the human auditory system--if scientists have not found how phase differences can change how a sound is perceived, it may be that we're not asking the right questions. Chuck

12 years, 11 months

[ANN] CAPS 0.9.1

by Tim Goetze

CAPS 0.9.1 ========== The C* Audio Plugin Suite is a selection of popular effects, unique filters and generators. For the digital guitarist, CAPS offers a range of processors recreating the formation of tone in traditional instrument amplification. Beyond sound quality, central design considerations are latency-free realtime operation, modest resource demands and meaningful control interfaces. http://quitte.de/dsp/caps.html This release contains major improvements particularly in the area of guitar signal processing, notably in the AmpVTS and CabinetIV plugins. These are the first iterations of the Amp and Cabinet designs that their author is well and truly happy with. Also worth noting here is the Compress plugin, a completely new design featuring optional oversampled soft saturation/limiting. http://quitte.de/dsp/caps.html#AmpVTS http://quitte.de/dsp/caps.html#CabinetIV http://quitte.de/dsp/caps.html#Compress http://quitte.de/dsp/caps.html#AutoFilter All plugins have been subject to further development, speedups, refinement and polishing. In many cases, this has been accompanied by the consolidation of shared or duplicate functions into a single circuit; for example, the AutoFilter plugin now fulfills the roles of the old SweepVF and AutoWah units. Many obsolete plugins have been removed, and everywhere else, port names, layouts, value ranges, defaults etc have been changed as well. Upgrading from previous releases is encouraged nonetheless. Enjoy!

12 years, 11 months

[LAA] [LAD] Guitarix release 0.25.1

by hermann meyer

We are proud to announce the release of guitarix2-0.25.1 Guitarix is a mono tube amplifier simulation for jack, with additional mono/stereo effect racks witch can be filled with some in-build effects as well as with external LADSPA plugins. Download from http://sourceforge.net/projects/guitarix/ After having some discussions with David Robillard (thanks for your patience, David) I realize that I need to push out a update in order to avoid a possible violation of the LV2 specs, so guitarix2-0.25.1 is out, those how use the last V0.25.0, are strongly recommended to update. * GxAmplifier tube 12ax7 tonestack sovtek cabinet 4x12 * GxAmplifier-II tube 12AT7 tonestack soldano cabinet AC30 * GxAmplifier-III tube 6C16 tonestack bassman cabinet 1x15 * GxAmplifier-IV tube 6V6 tonestack soldano cabinet mesa * GxAmplifier-V tube 6DJ8 tonestack ampeg cabinet HighGain there are mono and stereo versions of those amps included in the bundle. Thanks goes to Richard Dalton from http://www.Ampskindesigns.com for given me permission to use (and distribute) his work within a GNU GPL project, many thanks Richard. thanks goes as well to David Robillard for his great work on the LV2 specs and to Rui Nuno Capela for implement them so excellent in qtractor. Please check it out and give feedback if you find a problem. Please refer to our project page for more information: http://guitarix.sourceforge.net/ download site: http://sourceforge.net/projects/guitarix/ have fun guitarix development team _______________________________________________ happy new year to all

12 years, 11 months

New linux-made material - not my own

by Julien Claassen

Hello everyone! A friend of mine had a cooperation with a parson of the protestant church of the Rheinland, a region in my state. It's an advent's calendar, especially intended for the blind. The whole thing is now available for download: http://www.ebess.de/weihnachten-2012.html A few notes: For non-German speakers: it always starts with some talking and then there's some music. In the later pieces, there's also some more talking after that. It's everything from bible quotations and short elaborations to small anecdotes. The quality is not always the best, which is not due to the equipment or software used, but due to the parson's live/session approach. Not a studio-man. :-) Everything was recorded and processed in Nama. Other pieces of software involved were: loads of LADSPA plugins, LinuxSampler, Beatrix and sndfile-concat right at the end. :-) Also involved were external synths, guitars, a bass and a flute. The downloads will be available for about two or three more weeks. I hope there's something, that meets with your approval. :-) Warmly yours Julien ---------------------------------------- http://juliencoder.de/nama/music.html

12 years, 11 months

MIDI bank select and LinuxSampler MIDI instrument map

by Julien Claassen

Hello everyone! Sorry, to bother you again. But I have defined a MIDI instrument map, as described in the latest LSCP documentation (current draft) with the latest CVS/SVN versions of everything. But it doesn't work. I've checked my device, when there is a bank select, the following two messages get sent (prnted out by aseqdump: Control change 0, controller 0, value 63 Control change 0, controller 32, value 3 Where the last 3 is the bank number. In LinuxSampler I have also tried to change the program after that, because it said, this might b3e necessary. No luck. My instrument map, looks like this: ADD MIDI_INSTRUMENT_MAP 'jpc' MAP MIDI_INSTRUMENT 0 0 1 GIG '/home/sounds/gig/solina/solina_no_vel.gig' 0 0.8 PERSISTENT MAP MIDI_INSTRUMENT 0 1 2 GIG '/home/sounds/gig/solina/solina_no_vel.gig' 1 0.8 ON_DEMAND MAP MIDI_INSTRUMENT 0 2 3 GIG '/home/sounds/gig/solina/solina_no_vel.gig' 2 0.8 ON_DEMAND MAP MIDI_INSTRUMENT 0 3 4 GIG '/home/sounds/gig/solina/solina_no_vel.gig' 3 0.8 ON_DEMAND MAP MIDI_INSTRUMENT 0 4 5 GIG '/home/sounds/gig/solina/solina_no_vel.gig' 4 0.8 ON_DEMAND SET CHANNEL MIDI_INSTRUMENT_MAP 0 0 Channel 0 is added, audio output and midi input set correctly, copied from an existing LSCP-script. What is wrong here? Is it my device? Anything I could change to make it work? Or do I have to activate anything further in my LSCP-script? Warm regards Julien ---------------------------------------- http://juliencoder.de/nama/music.html

12 years, 11 months

Modlys: Det kimer nu til julefest

by Atte

Hi Fourth sunday of advent, I've done a new version of "Det kimer nu til julefest" (Grundvig). Enjoy and merry christmas! http://modlys.bandcamp.com/track/det-kimer-nu-til-julefest https://dl.dropbox.com/u/4343030/det_kimer_nu_til_julefest.mp3 -- Atte http://atte.dk http://modlys.dk

12 years, 11 months

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Linux-audio-user December 2012