Linux-audio-user

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20662 discussions

Re: [linux-audio-user] Laptop + Multiface = Easy?

by thewade

I have two laptops: Dell inspiron 8000 and an AMD 64 from xtrementoebooks. The Dell worked just fine after I rebuilt the 2.6.4 kernel to include the hdsp driver and built alsa-lib and utils(hdsploader/hdspmixer). No problem really. The AMD on the otherhand is having some trouble. I dont know if the driver is different. In the Dell during boot the kernel finds the multiface and says its waiting for firmware which hdsploader provides. The AMD64\'s kernel (2.6.8.1) finds the cardbus but not the multiface and also says its waiting for firmware. But once I run hdsploader the kernel gives me Ooops, which is the worst message the kernel can give you. The problems with the AMD64 may be that hdsploader isint uising the correct pointer size because of the 64 bit thing, who knows... But the Dell worked just fine! My advice: If you want to get up and running without much trouble get an x86-32. Good Luck, -thewade

21 years, 2 months

[linux-audio-user] Analysis software?

by Paul Winkler

Hi folks, I'm looking for something that can take soundfiles and display various analyses of them. Any recommendations? Something very much like what you can get with Spectralab, for example these plots: http://www.pcavtech.com/soundcards/ht1869/index.htm ... but free software and working on linux :-] Basically the main thing I need is a good display of log frequency vs. dB amplitude, averaged over the whole file, useful for e.g. getting a frequency response from a swept sine wave or white noise. Other analyses that would be handy at various times: signal to noise ratio and total harmonic distortion given a known input. Also really nice would be a clearly labelled sonogram showing log frequency against time. So far I've been using snd, which has a decent sonogram but kinda falls down on readability: e.g. it doesn't display the actual frequencies of the scale if you select log frequency, it's just 0 to 1.0 so I have to guess, or click on a part of the graph to find out about that particular spot. -- Paul Winkler http://www.slinkp.com

21 years, 2 months

Re: [linux-audio-user] ???

by Sampo Savolainen

Quoting jonathan segel <jsegel(a)magneticmotorworks.com>: > > On Sep 9, 2004, at 6:27 PM, noise floor wrote: > > > > > --- Mark Knecht <markknecht(a)comcast.net> wrote: > > > >> On Thu, 2004-09-09 at 01:15, Steve Harris wrote: > >>> On Wed, Sep 08, 2004 at 03:30:33 -0700, Mark Knecht wrote: > >>>>>> What part of California are you from? Must be 'South' > >> California? ;-) > >>>>> > >>>>> Was there for 3 years. I'm almost over it now! Nth Cali is > >> where it's at. > >>>>> Air's not so "chewy". > >>>>> > >>>> > >>>> crikey - we're neighbors mate. ;-) > >> > >> Not really close, but should you find your way to the Bay Area then > >> the > >> first two stouts are on me. > >> > > > > I'm in west Oakland myself; what part of the bay area are you in? > > oakland, myself (as below) most of the time. in stockholm now. > lots o' NoCal.... no wonder they call it "planet" ccrma. Stockholm? At last someone nearby! I've been grinding my teeth with these people setting up a meet on almost the opposite side of the "planet". I live in Helsinki, just over the baltic. And study where our saviour, Linus, started his pet project. Oh yeah, sorry.. we were talking about leving religion out of it too... :) Sampo

21 years, 2 months

[linux-audio-user] RPMs for new Distro...Yoper Linux

by Russell Hanaghan

Ok...so I KNOW you guys couldn't care less about yet ~another~ Linux distro....And knowing how passionate one gets about this, I don't blame you! But this is top the authors of some of our most treasured audio apps... I have managed to build some RPM's for this new distro working with one of their developers. The only app they had that I could find was Audacity I think. So...I have helped them with: Qjackctl Jack-audio-connection-kit Ardour (with libsndfile, raptor, etc) These are functional and working correctly IMO. Someone else built 'em and sent them to me. I installed them and they worked. I have just finished building: swh-plugins (w/ fftw3) JAMin tap-plugins They worked on my system. Waiting to find out if they do on the devs system. If they do they will go into their "contrib" repository managed by apt. I'm going to talk with the main key developer. If he expresses interest in the area of pro quality audio and possibly catering to that area with modified kernels and the whole works, I'll continue to help bring it along as best I can. www.yoper.com if your interested. R~

21 years, 2 months

[linux-audio-user] Kernel tweaking for low latency

by Ben Sheron

Hello Everyone I have used Linux for a couple years now, but have recently decided to start using it for audio work. As a result, in terms of real professional Linux audio, I am a newbie. My current setup includes a dual AMD MP 2800 box with an M Audio Delta 44 sound card. I am running SuSE 9.1, and installed Jack and Ardour. However, I need to get a low latency kernel going. Even when I run Jack and Ardour as root, I still get a noticeable delay in the audio when I try to record from a mic and monitor what I'm recording through one of the outputs on my sound card. So, how exactly do I go about optimizing a kernel for audio, especially on SuSE? Does SuSE have a precompiled one available, or is it best to just compile it on my own? I've Googled around a bit, and checked SuSE's documentation on recompiling a kernel, but haven't had much luck. The last time I tried recompiling a SuSE kernel I trashed the whole system... Thanks for any info, I can't wait to start getting into Ardour more... Ben

21 years, 2 months

[linux-audio-user] Error building swh-plugins...

by Russell Hanaghan

Steve, Got this; gcc -DHAVE_CONFIG_H -I. -I. -I. -O2 -g -march=i686 -mtune=i686 -c `test -f 'lcr_delay_1436.so.c' || echo './'`lcr_delay_1436.so.c sc2_1426.xml: In function `runAddingSc2': sc2_1426.xml:45: internal compiler error: Segmentation fault Please submit a full bug report, with preprocessed source if appropriate. See <URL:http://gcc.gnu.org/bugs.html> for instructions. make[2]: *** [sc2_1426.so.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[2]: Leaving directory `/usr/src/yoper/BUILD/swh-plugins-0.4.7' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/usr/src/yoper/BUILD/swh-plugins-0.4.7' make: *** [all] Error 2 error: Bad exit status from /var/tmp/rpm-tmp.50444 (%build) RPM build errors: Bad exit status from /var/tmp/rpm-tmp.50444 (%build) Yes...trying to build rpms for another distro but does this look familiar? Thanks R~

21 years, 2 months

[linux-audio-user] JAMin compile error...

by Russell Hanaghan

I was trying to build jamin 9.0 last night and it stalled in make at the scenes.c thing I think. I went back thru the posts and found Jack O'quins patch...but I don't know how to apply the patch. Apparently some issue with compiling with gcc 3.4? How do I apply the patch or is there a tarball somewhere that has the updated source? Thanks

21 years, 2 months

[linux-audio-user] [ANN] Hydrogen v0.9.0 Released

by Comix

Hydrogen 0.9.0 is out! :) Features: __General__ * Very user-friendly, modular, fast and intuitive graphical interface based on QT 3. * Sample-based stereo audio engine, with import of sound samples in .wav, .au and .aiff formats. * Support of samples in compressed FLAC file. __Sequencer and mixer__ * Pattern-based sequencer, with unlimited number of patterns and ability to chain patterns into a song. * Up to 64 ticks per pattern with individual level per event and variable pattern length. * 32 instrument tracks with volume, mute, solo, pan capabilities. * Multi layer support for instruments (up to 16 samples for each instrument). * Ability to import/export song files. * Unique human velocity, human time and swing functions. * Multiple patterns playing at once. __Other__ * OSS and Jack audio drivers, with assignable Jack ports. * ALSA MIDI input with assignable midi-in channel (1..16, ALL). * Import/export of drumkits. * Export song to wav file. * Export song to midi file. Changes: * Multi layer support for instruments (up to 16 samples). * Multiple patterns playing at once. * Added FLAC files support for songs and drumkits. * Added pitch and gain properties per instrument. * Improved song and pattern editor (selections, copy/move, etc..). * Added a new selectable user interface (single panel). * Better jack-transport support. * Ability to set the note length in pattern editor * Export song to standard midi file Download: http://hydrogen.sourceforge.net Happy drumming! :^) -- Alessandro <Comix> Cominu http://hydrogen.sf.net e-mail: comix(a)despammed.com Icq: 116354077 Linux User # 203765 [...Codito Ergo Sum...]

21 years, 2 months

[linux-audio-user] A pc only for a piano with keyboad midi

by Tommy

hi all; thanks for the aid. Finally works well! If you want to try, I write a little article for explain how to do this. Sorry for my bad english :(, if you find something wrong please tell me :) english: http://www.tommasovitale.it/index.php?page=my/articles/pc4piano_en italian: http://www.tommasovitale.it/index.php?page=my/articles/pc4piano_en bye all

21 years, 2 months

[linux-audio-user] Re: [linux-audio-dev] Re: [Jackit-devel] realtime-lsm in the kernel

by Lee Revell

On Wed, 2004-09-08 at 05:30, michael tewner wrote: > On Tue, 7 Sep 2004, Rui Nuno Capela wrote: > > > Hi Lee, > > > > > > Now that the final touches are being put on the 2.6 low latency patches, > > > a massive migration of linux audio users to 2.6 is imminent.Since this > > > means every single linux audio user will need the realtime-lsm module, I > > > think we should push to get it in the kernel, the sooner the better. > > > > > > There seemed to be much opposition to it on the kernel developer list. > Have you seen the messages? > Sorry, maybe it was not clear enough from my message or my subject line, but I am NOT talking about getting the voluntary preemption patches in the kernel, I am referring to the realtime-lsm module: http://sourceforge.net/projects/realtime-lsm/ This is a MUCH simpler and MUCH less controversial feature. What messages are you talking about? Lee

21 years, 2 months

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Linux-audio-user