Linux-audio-user February 2011

linux-audio-user@lists.linuxaudio.org

157 participants
129 discussions

WavPack's Universal Ambisonic playback on linux

by Harry Van Haaren

Hey all, I've downloaded one of the demo recordings for ambisonic playback ( soundofspace.com/ambisonic_files/41) Its a .ua file, which is wavpack's standard ambisonic audio file type.. AFAIK. I'm trying to play it back (into AmbDec) but VLC only shows one channel, Ardour won't import it, and other players that supposedly do support wavpack (QuodLibet) doesn't recognize it at all. Do i need to uncompress it before playback or whats the deal here? Cheers, -Harry

13 years, 9 months

Controling csound in real-time

by S. Massy

Hey, all, I'm having a shot at controling csound with midi in real-time; I tried this many years ago and never succeeded then. As a starting point, I found and downloaded this excellent and well documented example: http://tx0.org/1m0 I have edited my CSOptions to look like this: -odac -+rtaudio=jack -b200 -M hw:1,0 -+rtmidi=alsa The orchestra compiles without any errors, but then exits immediately, rather than hanging for an hour, waiting for events, as one would expect. I've looked around, but so far, no luck. Has anybody any idea what might be amiss, or could any one point me to an ecample known to work under linux/csound 5.12? Cheers, S.M. --

13 years, 9 months

Lexicon MX300 console for Linux

by jani＠lasipalatsi.fi

Hi, I've written a small program (Leevi is its name) to drive Lexicon MX300, similar console what Lexicon ships for Windows operating system along with their devices. Leevi supports Linux and BSD, and needs either libusb-0 or libusb-1. It does not require any user interface libraries, as everything is built on libX11, so if you can boot to runlevel 5, you can run Leevi. Please note: As Lexicon wasn't very keen to tell me how to talk with their devices, USB protocol is reverse engineered by me and there are myriad of things that I haven't yet revealed. Although Leevi is proven to work without breaking anything, there is always a small change that something goes wrong. Therefore I don't take any responsibility, you use Leevi at your own risk. Check BSD License in Leevi's homepage. Leevi is yet in development stage, changing effect in stereo mode and changing routing to/from stereo does not yet work. All other features should be fully functional. http://leevi.sourceforge.net - Jani Salonen

13 years, 9 months

Stutter effect for linux

by jordan

hi there, There is an application, although not LV2 or ladspa ~ it's called "Tranches" that is designed for stuttering. It is a standalone (jack) app, it can also be controlled via Midi. It's the best beat-slicing/stutter plugin (in my opinion) that i have used so far, for linux. I don't think the newest version is available yet (which is way cooler, i've tested it out), but the old version seems to be stable and works nicely. It works similar to the same type of stuttering found in the Kaoss pad. here's the link: http://tardigrade-inc.com/index.php/En/Tranches jordan

13 years, 9 months

chess music

by Rustom Mody

Something curious... http://jonathanwstokes.com/2011/02/14/chess-music/

13 years, 9 months

MuseScore 1.0 is released

by Thomas Bonte

13 years, 9 months

Stutter-plugin for ladspa/lv2?

by Gabbe Nord

Hello! Do you guys know of any stutter-plugin for Linux? Stuttering is pretty easy to do by just trimming the regions but it takes an awful lot of time, so a plugin would be of real ease! Is this anything that's availible? Regards!

13 years, 9 months

Music made with Linux: Tunestorm 04 results

by Stuzz

G'day LAUs Back in January you may remember Sim laid down the setup for the Open Source Musician Tunestorm 04 Uncompetition <http://lists.linuxaudio.org/pipermail/linux-audio-user/2011-January/075417.…>. I'm here to share the results with those that may not have heard the live broadcast, or listened to the subsequent podcast. Just to recap: Tunestorming is an uncompetition. Each participant creates their own music to the same broad guidelines, until the grand submission date when we each show and tell what we did. Tunestorm 04 was sample-based, whereby all participants started with the same sample provided by Sim, and built a creation incorporating the given sample. In order of submission date, the participants and their results are below, with the original sample that started it all. The links are direct downloads of the pieces in the format they were originally uploaded to Soundcloud (some flac, some ogg). If for some reason you prefer to stream a tune or want more info, drop "download" off the end of the link. Provided sample - http://db.tt/nMBjufE Mike Holstein - TS04 http://soundcloud.com/mike-holstein/ts04/download pneuman - pulse http://soundcloud.com/pneuman/pulse/download pneuman's comment: Track recorded quickly for the Open Source Musicians Tunestorm04 challenge. The only sound in here is the original sample; I chopped and looped it in Specimen, ran it through some distortion effects, and then in to PHASEX for filtering (controlled by a Korg nanoKONTROL) and then through some more effects (chorus/delay). Recorded and mixed in Ardour. Stuzz - Ass In, Ass Out http://soundcloud.com/stuzz/ass-in-ass-out/download Stuzz's comment: For Tunestorm 04. The sample was shoved into specimen and then looped over a small portion to create the monotonous drone. The rest is bits and pieces thrown together to make the monotonous slightly less so. Recorded with Ardour3. falkTX - Claudia http://soundcloud.com/falktx/claudia-3/download falkTX's comment: The sample is used for the kick and bass. Piano sound generated by linuxsampler (maestro_concert_grand_v2.gig), using non-sequencer for the notes. Beat done in Renoise, with using some basic ladspa effects. Watch this space for details of the upcoming Tunestorm 05 - http://opensourcemusician.com/index.php/Tunestorm Enjoy Stuzz Send instant messages to your online friends http://au.messenger.yahoo.com

13 years, 9 months

MIDI notes-controllable multiband filter?

by Mike Cookson

Hi all. Is there any multiband filter, which can accept midi notes and create new filter for each note, using (e.g.) volume for gain, note for frequency, velocity... ^^, for width. Currently i'm able only to load row of bandpass filters and route signal to them independently, than mix (sure, tools like ingen are best host in this case).

13 years, 9 months

Fedora 14 PlanetCCRMA music/audio/video apps on MeeGo 1.2

by Niels Mayer

Here's an example of installing Fedora 14 Apps from PlanetCCRMA [1] with "MeeGolem" repository hacks on MeeGo 1.2 [2] 'netbooktablet': http://nielsmayer.com/meego/netbooktablet/MeeGolem-con-CCRMA-installing.txt (nb: you can't just go blindly installing stuff... for example, I forgot about the app w/ kde dependencies until 'zypper' reminded me about it... so I skipped it during install along w/ a few other unresolvables, for now... they're in RPMFusion). Package list of MeeGo + PlanetCCRMA + Fedora14: http://nielsmayer.com/meego/netbooktablet/MeeGolem-con-CCRMA-packages.txt (That's a 2.3Mb listing of packages -- imagine how many apps get in there when I add RPMFusion -- and how slow zypper gets on the poor little netbook) Some screenshots of a few apps running on a touchscreen Lenovo s10-3t Netbook (and yes, it's really nice using a touchscreen to make patch connections in qjackctl). http://nielsmayer.com/meego/netbooktablet/CCRMA-2.png http://nielsmayer.com/meego/netbooktablet/CCRMA-3.png http://nielsmayer.com/meego/netbooktablet/CCRMA-4.png http://nielsmayer.com/meego/netbooktablet/CCRMA-5.png http://nielsmayer.com/meego/netbooktablet/CCRMA-6.png (screeensnap happened mid-refresh on the spectrum) [1] http://ccrma.stanford.edu/planetccrma/software [2] A recent prerelease of MeeGo 1.2 see http://qa-reports.meego.com/1.2/Netbook/Acceptance/Pinetrail/ , combined some of the nice QML touchscreen interfaces from Intel's MeeGo 1.2 tablet developer's release, see http://appdeveloper.intel.com/en-us/meego-swype-esla . Specifically: "Linux meegolem 2.6.37-7.25 #1 SMP PREEMPT Thu Feb 17 06:50:32 UTC 2011 i686 i686 i386 GNU/Linux" on an Intel Atom N455 (1.66G). Niels http://nielsmayer.com PS: Once I figure more stuff out and a few do's and don'ts I'll make my hacked repository directories available so you all can MeeGolemize your netbooks too.

13 years, 9 months

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Linux-audio-user February 2011