Linux-audio-user January 2009

linux-audio-user@lists.linuxaudio.org

165 participants
173 discussions

by Kjetil S. Matheussen

Fernando Lopez-Lezcano: > > On Wed, 2009-01-21 at 01:34 +0000, pete shorthose wrote: >> On Wed, 21 Jan 2009 01:10:44 +0100 >> Esben Stien <b0ef(a)esben-stien.name> wrote: >> >>> Kevin Cosgrove <kevinc(a)cosgroves.us> writes: >>> >>>> ... system for audio work? >>> >>> http://irc.esben-stien.name/mediawiki/index.php/Computer_Silence >> >> Quote: >> "The price tag for this rig is estimated to be 1 Billion Dollars" >> >> Perhaps you could interest me in a loan? >> >> I've been considering a setup with an SSD drive and a scythe ninja II passive >> heat sink. If the ninja can cool the processor without recourse to a fan then the only noise >> would come from the PSU fan. I've looked around and found quite a few PSUs with >> "silent" in the name yet they seem to refer to values of silent that veer considerably away from.. >> well.. silent. Does anyone know of a truly silent PSU or of any hardware mods (say to the heat sink) >> to convert one into a truly fanless (and also non explody) PSU? > As far as my experience go, there are no silent PSU w/fan available. However, I've just successfully switched the fan out of a tagan superrock (supposedly the silentest PSU according to anandtech.com) with a downvolted fan, and that worked. Lost warranty though, but can't hear it from outside of the case now. > Have not tested this one: > > http://www.newegg.com/Product/Product.aspx?Item=N82E16817104035 > > Pricey, but I have successfully used this one: > > http://www.newegg.com/Product/Product.aspx?Item=N82E16817256047&Tpk=silvers… nightjar > I would go for either of these, although they cost a bit more. By mounting a silent 120mm fan running at 5V close to one of these, they should probably work just fine.

16 years, 10 months

Re: [LAU] Linux-audio-user Digest, Vol 23, Issue 32

by Kjetil S. Matheussen

PS. Please CC me when you reply. :-) Andras Simon: >> Andras Simon: >> >>>> >>>> Can you try this one: >>>> http://heim.ifi.uio.no/~ksvalast/jack_capture.c.gz >>>> ? >>> >>> Sure: >>> >>> [simon at zsuzsi jack_capture-0.9.31]$ ./jack_capture >>> 1 >>> 2 >>> 4 >>> 5 >>> 6 >> >> That's just buffer init. Weird! Perhaps you >> are running out of memory? > > I shouldn't: > > [simon@zsuzsi jack_capture-0.9.31]$ free > total used free shared buffers cached > Mem: 2059296 1937596 121700 0 82608 628812 > -/+ buffers/cache: 1226176 833120 > Swap: 8193108 4812 8188296 > > > What does /etc/security/limits.conf say? My file has this line: "@audio - memlock 25000000" which gives me 2.5m of non-locked memory. (at least I think that's what it means) >> Can you try >> >> ./jack_capture -B 0.1 >> >> ? > > Much more interesting: > > [simon@zsuzsi jack_capture-0.9.31]$ ./jack_capture -B 0.1 > 1 > 2 > 4 > 5 > 6 > 7 > Warning, the format "wav" is not supported. Using wav instead. Try make clean before make. If that doesn't help, what says "sh gen_setformat_c.sh"? And which version of libsndfile do you have? > 8 > 9 > 10 > 11 > 12 > Recording to "jack_capture_01.wav". Press <Return> or <Ctrl-C> to stop. > 13 > |""""""""""""""""""""""""""""""""""""""""""""""""""""""""| > 00:| | > 01:| | > Buffer: 0.06s / 0.09s. Disk high priority: [ ]. Overruns: 0 > 14 > Segmentation fault > > [This is without me pressing return or ctrl-c] > This is probably related to the bug above, where it didn't find a legal soundformat, and thus couldn't open a new file with libsndfile either. >> Also, what machine do you have? (/proc/cpu) There's some atomic >> operations going on in the buffer init, maybe they are locking up. > > processor : 0 Thanks.

16 years, 10 months

New short music...

by Julien Claassen

Hello everyone! I just uploaded a new small piece, it's a bit jazzy, rocky and classical. Download link: http://juliencoder.de/jazz.ogg Software used: Nama (the super-ecasound) LinuxSampler Fluidsynth LADSPA-plugns and an external synth for the Hammond. This song was originally made to test and use Nama. When I said super ecasound I meant it in two ways: 1. For the latin speaking corwd: It sits on top of ecasound 2. It is designed to make things easier and to use the full power of ecasound, without hesitation. It works! A few bits of brick or brack here and there, but nothing too annoying. Feedback is as always highly welcome! Kindest regards and enjoy 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, 10 months

Re: [LAU] Any opinions on this ...

by Kjetil S. Matheussen

pete shorthose: > > > Have not tested this one: > > > > > > http://www.newegg.com/Product/Product.aspx?Item=N82E16817104035 > > > > > > Pricey, but I have successfully used this one: > > > > > > > http://www.newegg.com/Product/Product.aspx?Item=N82E16817256047&Tpk=silvers… > nightjar > > > > > > > I would go for either of these, although they cost a bit more. > > By mounting a silent 120mm fan running at 5V close to one of > > these, they should probably work just fine. > > Perhaps I missed something here but aren't the above units fanless by > design? why add a fan? Contrary to the fans included with PSUs, the fans you can buy separately can be silent, especially when downvolted to 5V. So to ensure you don't overheat a fanless PSU, which can happen if it's too hot, it could be a good idea to mount a fan close to the PSU.

16 years, 10 months

Linux Audio Awards 2009: Attn Sponsors!!!

by Patrick Shirkey

Hi, Please visit http://awards.linuxaudio.org The website for the inaugural Linux Audio Awards ceremony to be hosted at the Linux Audio Conference 16 -19 April 2009 at La Casa Della Musica, Parma, Italy is now up. We are currently seeking sponsors for specific categories. Please let us know immediately if you would like us to send you a sponsorship proposal outlining the sponsor packages. We have three levels of sponsorship so everyone can get involved. What we would like to see is a show of hands from all the companies that use Linux Audio Software in their business or products. Alternately any Audio companies that use Linux to get the job done are also encouraged to participate. - Linux Journal are sponsoring an ad in the April edition. Deadline for the advertisement is Feb 3 so don't delay getting in touch to secure a promotional spot for your company logo. - Trinity Audio Group Inc are already sponsoring a prize for the "Best Vocal Track" Category and are supporting the "Best DJ" category too. Get on board to show how much you value the amazing software, hardware and community built around Linux Audio. * All administrative costs for the ceremony are being sponsored by Boost Hardware Ltd. Cheers. -- Patrick Shirkey Boost Hardware Ltd.

16 years, 10 months

Re: [LAU] Audio recording from Rosegarden+QSynth+Hydrogen

by Kjetil S. Matheussen

> > The -fn argument is'nt the best choice to use jack_capture, better use > > it like that: > > jack_capture --channels 2 --port system:playback* output.wav > This is exactly the same as just writing "jack_capture". :-) > Thanks for the sugestion, but it doesn't seem to help. jack_capture > doesn't crash, doesn't create output.wav, just sleeps (strace doesn't > show much activity after the initial setup) until killed. > Seems like your jack isn't working properly, but in case not I would be very interested in getting it fixed. Which version of jack are you using? jackd --version In case you are using 109, it would be a good idea to up- or down-grade immediately.

16 years, 10 months

How to make Kaffeine play through Audiophile 2496?

by david

Using Debian Etch, no sound, nothing. Even with envy24control set. Booted the PC with a Sidux Live CD (2008-4 release) and Kaffeine plays through the Audiophile without doing anything. I tried capturing the asound.state file when running Sidux, copied that to replace my existing state file, reloaded it using alsactl - and still no sound. What's up with that? -- David gnome(a)hawaii.rr.com authenticity, honesty, community

16 years, 10 months

Ardour... now with extra connections???

by Joe Hartley

Tech details: Fedora 9/CCRMA based system, Delta 1010, 2.6.26.8-1.rt13.4.fc9.ccrma.i686.rt kernel (usually) jackdmp 1.9.1, Ardour 2.7.1 (both pre-built and hand-compiled) /usr/bin/jackd -R -P70 -p512 -dalsa -r44100 -p128 -n2 -D -Chw:0 -Phw:0 -m Prologue: it helps to understand that in my Ardour sessions, I have the master bus output going only to the monitor bus, and the monitor bus outputs connect only to the system:playback inputs. I then control the volume to the powered monitors with the fader for the monitor bus. I started up an Ardour session today to listen to a band I'd recently recorded with Ardour 2.7.1, and heard feedback that started quietly but started growing rather quickly. I turned down the amp and saw the master bus's VU meters full on into the red, with the monitor channel about half that. I pulled up the master bus input list and saw this: in 1 ---- ardour:Drum Submix/out 1 ardour:Bass/out 1 ardour:master/out 1 ardour:Vox FXout 1 ardour:Marty Guitar/out 1 ardour:Harry guitar/out 1 in 2 ---- ardour:Drum Submix/out 2 ardour:Bass/out 2 ardour:master/out 2 ardour:Vox FXout 2 ardour:Marty Guitar/out 2 ardour:Harry guitar/out 2 'Ere, what's all this then? Master outs in the master in? That ain't right! So I click on the master/out 1 item, and it goes away. I click on the master/out 2 item, and it goes away... but it brings back the master/out 1 item. WTF? I open the master outputs, and see this: out 1 ----- system:playback_1 system:playback_5 out 2 ----- system:playback_2 system:playback_6 Ports 1 and 2 are fine, but 5 and 6 go to the mixer. Odd, but it shouldn't matter, since the mixer's got everything down right now. Let me just remove playback_5, I don't need it. Now for 6... oh sh!+, I take 6 out but it pops 5 back. What's in the monitor input? in 1 ---- ardour:master/out 1 ardour:auditioner/out 1 in 2 ---- ardour:master/out 2 ardour:auditioner/out 2 Auditioner? Do I use it? let's try and remove it.... Nope, I can take one out but the other pops back. Oddly enough, the real buses are fine. I can remove the monitor inputs from the master outputs fine. It's only these odd ports that I haven't used in the session. I've opened other sessions and found the same problems. If I look at the session.ardour file, there's no mention of the Auditioner or the playback 5&6 ports. Not weird enough for you yet?? I just opened the session under another login on the system (non-root), and it's fine. No oddball non-removeable ports, no feedback, no problems whatsoever. Anyone got a clue as to what's happening here? "It's driving me crazy, it's driving me nuts" - William S Burroughs in "Sharkey's Night" -- ====================================================================== Joe Hartley - UNIX/network Consultant - jh(a)brainiac.com 129 Petta. Lake Rd, Saunderstown, RI 02874 - vox 401.338.9214 Without deviation from the norm, "progress" is not possible. - FZappa

16 years, 10 months

Re: [LAU] Audio recording from Rosegarden+QSynth+Hydrogen

by Kjetil S. Matheussen

M Watts: > Andras Simon wrote: >> I have tracks in RG whose sound is produced by qsynth, and others >> that are played by hydrogen. Is there a way to record what I hear >> in RG? I can record separately the qsynth tracks by choosing >> Jack:qsynth, and the hydrogen tracks by choosing Jack:Hydrogen-1 >> as the recording device in audacity, but then I have to >> (re)synchronize them. Other choices for recording device are >> Jack:rosegarden and Jack:system, but they apparently don't hear >> either of the tracks. >> >> Life would (I think) be simpler if audacity appeared as a writable >> client in qjackctl. (Should it, by the way?) >> > > Maybe qarecord? It's just a simple writable jack client that can record > all system output to a .wav file. No whizz-bang features, but it does > its job well. > That would be jack_capture and not qarecord. In qarecord, you must manually set ports.

16 years, 10 months

Some more Bach

by Julien Claassen

Hello mates! This time it's the b minor prelude from the first wtc. This is for Dave, it's played using the hor, trombone and tuba of the bob orchestral brass. http://juliencoder.de/bach/hmp.ogg This is nasty playing the voices seperated... :-( You wouldn't think, that it took hours to do it... :-( 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, 10 months

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Linux-audio-user January 2009