Linux-audio-user August 2009

linux-audio-user@lists.linuxaudio.org

153 participants
162 discussions

by Norval Watson

I just realised there is a multi-processor version of JACK called jackdmp. I'm using jackd 0.116 from the debian repos on a dual core amd64 box. Do I need/should I be using something else? I can't find jackdmp in the sid repos I use. TIA Norv ******************************************* My art, blog, films, music, photos, tweets - http://www.norvalwatson.com __________________________________________________________________________________ Find local businesses and services in your area with Yahoo!7 Local. Get started: http://local.yahoo.com.au

16 years

Re: [LAU] JACK for multi-processors

by Norval Watson

Hi Hermann, Thanks for your reply, just checking: > jackdmp isn't in sid, you need to build it by your self. Best way (for > sid) to switch to jackdmp is to build a dummy(empty) package from jack1, So I get the equivs package and build a dummy jackd using equivs-control and equivs build (as in this blog http://blog.andrewbeacock.com/2005/09/creating-dummy-debian-package-for.html ) and call it, say, version 1.0, which is way higher than 0.116 > use a high version number for it, replace your jack1 installation with and install it with dpkg > it, and then install jackdmp. And get jackdmp, build it from source, and install it (do I have to make a .deb of jackdmp and install with dpkg?) > This way you fit all dependences from your .deb audio apps and didn`t > get probs when you run a upgrade. > > hermann > > Am Dienstag, den 18.08.2009, 21:56 -0700 schrieb Norval Watson: > > I just realised there is a multi-processor version of JACK called jackdmp. > > I'm using jackd 0.116 from the debian repos on a dual core amd64 box. > > Do I need/should I be using something else? I can't find jackdmp in the sid > repos I use. > > TIA > > Norv Thanks, Norv __________________________________________________________________________________ Find local businesses and services in your area with Yahoo!7 Local. Get started: http://local.yahoo.com.au

16 years

Performance tuning audio apps

by Ken Restivo

I'm trying to squeeze the last little bit of juice out of my EEE. The CPU I have is this: http://restivo.org/projects/eee/cpu.txt This nifty script at http://www.pixelbeat.org/scripts/gcccpuopt , says I should use "-march=core2 -mtune=pentium -mfpmath=sse" However, the Gentoo people (who I take to be an -funrollloops authority on performance tuning), say I should "-march=core2 -mtune=generic -fomit-frame-pointer -pipe". And then there is -march=native which many say is just easier and faster. And others recommend putting "-msse2" and other such things. What say you-all? I want to maximize the efficiency of, in particular, LinuxSampler, CALF/CAPS/TAP/GUTARIX plugins, AZR3, and Fluidsynth, but keep them super-stable as they have been. Thanks! -ken

16 years

recording my new band

by Loki Davison

Hey all, so i'm in a band now, and our first jam session was AWESOME. Fantastic stuff. I'm keen on recording our next jam and wondered how i should do it. 4 band members, Instruments are: Vocals 2 female, one male and one other guy who might sing. Acoustic Rhythm guitar Acoustic Lead guitar and a drummer playing tambourine and bongos and a stomp box kick drum :) I have an echo gina 3g, one condenser mic and one cheap crappy dynamic mic. So far i'm just using the condenser. If everyone is in the same room is it worth while micing everyone? My gina takes in ADAT, should I buy an ADAT 8X mic preamp and a few mics? Would it be better just to have a couple of mics randomly about the room? Would you get wacky phase effects? It would be great to get a good stereo mix easily. We can record one instrument at a time and multi track fine with ardour at the moment, i just mostly want a good way to capture our jam sessions so we can listen how it sounds. If mics is the answer what should i grab? Cheap is fine. Thanks! Loki

16 years

Re: [LAU] LinuxSampler higher priority than the audio card or jack?! by ken restivo

by Paul Neaveill

Ken, Is this the list or at least something similar to it? http://www.linuxquestions.org/blog/glennspref-112299/2009/1/27/real-time-au… Paul --- On Mon, 8/17/09, Paul Neaveill <boycotthell2005(a)yahoo.com> wrote: From: Paul Neaveill <boycotthell2005(a)yahoo.com> Subject: Re: LinuxSampler higher priority than the audio card or jack?! by ken restivo To: "linuxaudio" <linux-audio-user(a)lists.linuxaudio.org> Date: Monday, August 17, 2009, 9:30 PM If you find that priority list, would love to see it please. Paul

16 years

Midi Sustain Pedals

by Danni Coy

I bought one for my controller keyboard and it seems to be just a footswitch. Are they all like this - is there any way to get one that gives you 127 levels of control?

16 years

running two soundcards with JACK

by Julien Claassen

Hi all! I just got a USB tape dec, which acts as an ALSA USB-audio interface. Now I wonder can I run both my PCI soundcard and the tape dec with one JACK, so I can use the deck to playback (digitalise tapes) and record? I'd also like to be able to listen live to tapes playing through the tapedeck, so just connect tape-output to soundcard playback. Kindest regards 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

16 years

Re: [LAU] LinuxSampler higher priority than the audio card or jack?! by ken restivo

by Paul Neaveill

If you find that priority list, would love to see it please. Paul

16 years

mplayer and CDs

by Julien Claassen

Hello everyone! I wondered: Is there a way to not only play full CDs with mplayer, but to navigate through them track by track? I usually use something like this: mplayer [device-options] cdda://1,2,3 OR: cdda://* [which generates an error message, but plays the whole CD] Only whatever I tried, I can just press '+' and get to the next track, although mplayer recognises track-boundaries. I see it around the time mplayer gets to the next one (even while forwarding/rewinding). Mplayer prints something like: Track 2 Anyone any ideas? I'm asking now, because with my new kernel, I can't get cdfs to compile. :-( So no lack of curiousity, only never any pressing need. Kindest regards 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

16 years

[ANN] Ardour Lirc OSC 0.1

by Raphaël Doursenaud

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hi all, Here's the first version of an lirc/Ardour's OSC wrapper I wrote a while ago. Since it's working for me, it's time for you to enjoy it! * Allows controlling Ardour from any lirc remote * Uses a perl script to map lirc commands to Ardour's OSC interface This is also the time to introduce my company's free software forge. Comments and contributions welcomed! Source code : http://dev.ematech.fr/project/alo/download/file/alo-0.1.tar.gz Development forge : http://dev.ematech.fr/project/alo/ PS: Please note that other projects hosted there are under active development and not ready for use yet but I'm working on it ;) - -- Raphaël Doursenaud -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.9 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iEYEARECAAYFAkqJyPMACgkQaZKmNAdXaVUnoQCgjD+15gOOE6B6bAHCISdukzzH 3gcAnjKr5mNjQxg46r+7kr3vrLqCq/D5 =oJIl -----END PGP SIGNATURE-----

16 years

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Linux-audio-user August 2009