Linux-audio-user January 2008

linux-audio-user@lists.linuxaudio.org

142 participants
145 discussions

xruns with m-audio fast track pro on fedora 8 ccrma

by hitmuri＠no-log.org

Hi everyone, i have posted this on the planet ccrma list before, but i don't think it's a distribution problem. I get xruns when using a m-audio fast track pro usb soundcard at 44100Hz, frames/period=64 (same with 128, i need low latency) ,periods/buffer=2 with my new laptop when i have for example freewheeling, tapeutape and jack-rack running (xruns seem to appear when the dsp load rises, i've got none when using tapeutape alone for example). Some of them were related to the latest ccrma kernel, and they disappeared with a previous one. For the other ones, i have 4 ideas : 1) latency timer : doing lspci, all the latencies show 0 , even when i set them to antoher value with setpci. But with dmesg, i can see that at startup they are set to 64. Fernando Lopez-Lezcano told me that on some hardware latency timer couldn't be changed and that 64 could be enough actually. (forgot to say that the usb irq isn't shared) So it looks like i can't do anything for that. 2) rtc : At startup i have a message from udev : Node Symlink... node /dev/rtc already exists , link to /dev/rtc0 will not overwrite it. 3) soundcard power The fast track pro can be powered by usb or by an external power supply. Mine is usb powered for now. Is this a problem ? 4) rtirq I noticed that in the rtirq script , i have these lines: RTIRQ_NAME_LIST="rtc snd usb i8042" RTIRQ_NON_THREADED="rtc snd" Do they need to be changed when using a usb soundcard ? If anyone has an idea on that... Sorry it was quite long !! Thanks Flo

16 years, 11 months

Maintaining MIDI Connections

by Miguel M

Ok, I have a two part question. First, is there a tool like jack.plumbing to maintain MIDI connections. If there's not, I'd be happy to help in the development of one. I would use QJackCtl's patchbay feature but I need to set up and maintain these connections quickly and would prefer to use a simple text file for connections rules and have a daemon that maintains them. Secondly, what is the difference between the JACK midi and the ALSA midi. So far, I haven't seen many applications that support the JACK MIDI. Can I communicate between ALSA MIDI applications and JACK midi ones? If not, what is the point of adding MIDI capabilities to JACK? Thanks in advance, Miguel -- My Website: http://eckz.zapto.org/eckz/

16 years, 11 months

Re: [LAU] [ANN] zynjacku version 1 released

by Hermann Meyer

> The only LV2 host I have written does not use SLV2. It would probably > start up a lot faster if it did. Ah, I didn't check that. So that's why I dont see a different when I compile it with slv2-0.5 or slv2-0.4 on my system. The first time I use elven it start up a lot faster than it do now. At this point, I'am not a programmer, I'am only a interresstet user, so I would like to ask if you plan to give elven a generic Gui to enable make settings to the effekts ? I would realy like to see a tool like jackrack for lv2. reegards hermann

16 years, 11 months

Re: [LAU] [ANN] zynjacku version 1 released

by Hermann Meyer

Hello the log is captured with slv2-0.5.0 from svn. But there are the same result with the slv2-0.5.0 release. I cant go back to 0.4.5 because I have allready build ardour and the stuff from Lars against 0.5. Okay, then I will wait for your next release, and will say Thank's a lot. Do you plan to enable zynjacku for load effect's also ? To use it like jackrack ? Or will it enable synth's only ? reegards hermann

16 years, 11 months

Re: [LAU] [ANN] zynjacku version 1 released

by Hermann Meyer

Hello zynjacku wont run with the new slv2-0.5.0 zynjacku Traceback (most recent call last): File "/usr/bin/zynjacku", line 31, in ? import zynjacku_c as zynjacku ImportError: libslv2.so.6: Kann die Shared-Object-Datei nicht öffnen: Datei oder Verzeichnis nicht gefunden // cant open shared lib When I make the link libslv2.so.6 > libslv2.so.9.0.0 I get this Traceback (most recent call last): File "/usr/bin/zynjacku", line 31, in ? import zynjacku_c as zynjacku ImportError: /usr/lib/python2.4/site-packages/zynjacku_c.so: undefined symbol: slv2_port_get_direction So I try to rebuild zynjacku (v1 and also svn) against slv2-0.5.0 but it failed a log is attachment Sorry for my bad englisch, but I realy like to use zynjacku and zyn again. reegards hermann

16 years, 11 months

Ardourvst 2.2 opens old sessions without vst-plugins

by Susanne Schneider

hi all, this week I compiled Ardour 2.2 with vst support and now have to experience my already existing sessions opening without vst plugins... It's not a catastropy as I'm only a hobby musician and can rebuild my few sessions (I mostly use ladspa anyway). Of course it would be nice to be able to open the old sessions completely, including vst-plugins - does anyone know if there is a solution for that? thanks Su -- Psssst! Schon vom neuen GMX MultiMessenger gehört? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger

16 years, 11 months

toot-audio-meter

by plutek-infinity

greetings! is anyone out there successfully running the Steve Taylor's toot-audio-meter java application? when i do: java -jar /usr/share/java/toot/toot-audio-meter.jar i get this error message: Failed to load Main-Class manifest atribute from /usr/share/java/toot/too-audio-meter.jar thanks in advance for any clues! alternately, if anyone knows of any other linux implementation of Bob Katz's K-system metering, that would be cool too. -- .pltk.

16 years, 11 months

[ANN] miniloop-0.0 Released

by Nick Thomas

miniloop is a simple live looping program. It can load a number of stereo audio loops of equal length from the disk and loop them in sync with each other, sending each loop to a different pair of JACK audio outputs. These outputs are intended to be subsequently fed into an external software mixer, such as Ardour. For live performance, you will want to control the mixer using a MIDI control surface. miniloop is similar in intent to Stephen Sinclair's LoopDub. I actually created miniloop to explore some design ideas that I had while working on LoopDub. Given that, it is appropriate to provide a comparison between the two programs. The most important difference is that LoopDub uses a built-in mixer, while miniloop uses an external mixer. This means that miniloop is more flexible, but requires a more complex software setup. Another important difference is the user interface, which is radically different, and, I hope, somewhat easier to use. Finally, LoopDub has many features that miniloop lacks; miniloop is currently quite small (~500 SLOC) and quite feature-poor, and I intend to keep it that way. Project homepage here: http://code.google.com/p/miniloop/ Download here: http://code.google.com/p/miniloop/downloads/detail?name=miniloop-0.0.zip

16 years, 11 months

[INFO] Lomus 2008

by Thierry Coduys

AFIM/LOMUS 2008 Appel à contribution / Call for participation Désolé en cas d’envois multiples / sorry for possible crossposting Lomus 2008 À la recherche des logiciels libres pour la musique Pour sa seconde édition, Lomus 2008 s’adresse à tous ceux qui s’aventurent dans le développement de logiciels libres musicaux ou de logiciels libres qui peuvent contribuer au processus de la création musicale. Un prix sera remis aux logiciels qui font preuve non seulement d’innovation mais notamment d’inventivité face aux enjeux actuels de la création musicale. Calendrier Soumission des logiciels : 15 février 2008 Notification d'acceptation : 14 mars 2008 Remise du prix lors des JIM : 29 mars 2008 info : concours.afim-asso.org In search of open-source software for music For its second edition, Lomus 2008 invites music and audio open-source software creators to submit original projects that either directly or indirectly contribute to musical creation. A prize will be awarded to open-source sofware that proves to be not only innovatory but also inventive in the present context of music and audio creation. Calendar Submission deadline : 15 February 2008 Admission notification : 14 March 2008 JIM Awards Ceremony : 29 March 2008 info : concours.afim-asso.org _______________________________________________ OSC_dev mailing list OSC_dev(a)create.ucsb.edu http://lists.create.ucsb.edu/mailman/listinfo/osc_dev

16 years, 11 months

A pc without noise!

by Studio 32

Hey, My pc makes to much noise. :( I've two harddisk in it and I think the cooler makes te most noise. Will it help to remove one harddisk? What else can I do without spending too much money? Regards, Studio32 _________________________________________________________________ Express yourself instantly with MSN Messenger! Download today it's FREE! http://messenger.msn.click-url.com/go/onm00200471ave/direct/01/

16 years, 11 months

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Linux-audio-user January 2008