Linux-audio-user October 2007

linux-audio-user@lists.linuxaudio.org

147 participants
141 discussions

by Robin Gareus

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Hooray, To provide better performance and reliability linuxaudio.org is replacing old hardware and upgrading the network bandwidth ! Scheduled server maintenance - Fri Oct 12 2007. The servers will be down for a short time around 18.00 CEST, 12pm EST or 9am PST. The HTTP services will resume almost immediately (reboot). but the mailing lists might be off-line for up to 3 hours. During this time the list server will not accept incoming messages and will not distribute messages. Any messages sent to the lists should be queued by the sending mail servers and will be accepted once the new list server is brought into service. #robin, for the linuxaudio.org team -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) iD8DBQFHDjxieVUk8U+VK0IRAobPAJ9OgEje2zELBE5Bug1Y3f6gTJgD1QCfQx+I Q/5QoxJoq63BEcg4rP64uzY= =5saU -----END PGP SIGNATURE-----

18 years, 1 month

Best recording practise

by Julien Claassen

Oi mates! I've got the following scenaroi: A microphone recording in a suboptimal room. Here's a breif discription and my question is: How best to proceed, where best to place the mic? It's a room roughly four by four or five by five metres. Carpet on the floor, wood panelled ceiling, mostly bare walls, one side with three windows (half room height) with thin curtains. My work place is located in one corner (wall and windows). I've got some keyboards to one side and in back, so I could drape some material over them. Where should I best place the mic now? Unfortunitely I can't do real room correction because of shitty multi-media speakers only. Any ideas what I can do in general to compensate/improve the recording? 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

18 years, 1 month

Ardourvst Errors

by David Baron

I compiled Ardour2.1 with vst support. Program flags a lot of missing ladspa_descriptors. This used to floor Muse when I could run that at all. Program finds all the vsts through a symlink on my home to the windows vsts. It thin polls them. One with "registrations" do not find them. Wine fails and so does Ardour. It might be a better idea for these programs to "test" a plugin if and only if I try to use it. And then, fail gracefully. I'll try a non-vst ardour and see if it gets past the ladspas.

18 years, 1 month

get linux audio working using remote desktop...

by Preston C.

I was wondering if this is possible. Would someone help setup my Linux Audio (Qsampler and qjackctl primarily) by using a remote desktop connection? I have tried for weeks to get it working and just can't get it. Any help is much appreciated.

18 years, 1 month

Digital room correction

by Julien Claassen

Hello folks! I'll get a pare of studio near field monitors (Behringer MS40) very soon. Will it be possible with them and my middle class mic to do digital room correction? About the speakers: They say: 50something to 25kHz +/-3 DB and the mic is an xray live mic. Can I record a good enough impulse response to do DRC? 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

18 years, 1 month

Command Line Audio Processing...

by Thomas Vecchione

Howdy Folks- I am looking for a decent way to do this... What I have: CDs of Sound Effects Collections These can have a varying number of sound effects per track seperated by short periods of silence Tab Delineated ASCII text files These list every sound effect on said CDs, by Track and if applicable location in the track, unfortunatly not by time though. These also give basic information about each sound effect What I would like to be able to do... Take each track, either ripping or already-ripped, and then break each multi-sound track into individual files named by information gotten from the text file, tagged by info, and split based on the number of sounds that file says are there as well as the sections of silence. What I am not sure of: Is there a utility that either can split up files based off silence(Googled and couldn't find one but I thought I remembered a discussion about that here some time back), or at the very least return the location in time of said sections of silence for me to process using Sox. Any ideas? The rest I can figure out I am sure, just that one has me stumped. Seablade

18 years, 1 month

Overwhelming number of xruns in Ubuntustudio

by Ricardo Lobo

Hi there, I'm getting a strange and very high number of xruns in ubuntustudio. I don't know what is causing it. The xruns start as soon as I launch jack, and I don't even need to start anything else. I had Ubuntu Feisty installed and thought the problem was the kernel, so I installed Ubuntustudio, but it didn't help.

18 years, 1 month

unsuscribe

by jean-jacques cavelier

-- cordialement jean-jacques. Ce message a été écrit sur un système libre mandriva "Tant que l'homme sera mortel, il ne pourra pas être totalement décontracté ." Woody Allen.

18 years, 1 month

Re: [LAU] ADAT cards

by Loki Davison

On 10/6/07, Loki Davison <loki.davison(a)gmail.com> wrote: > On 10/6/07, Svend-Erik Kjær Madsen <sv-e(a)sv-e.dk> wrote: > > Hi group > > > > I'm looking for a small size adat io pci card, it must be approx half > > height of a normal pci card, my RME Digi96/8 is a bit to high for my new > > computer :( any suggestions ? > > > > /Sv-e > > > > _______________________________________________ > > Linux-audio-user mailing list > > Linux-audio-user(a)lists.linuxaudio.org > > http://lists.linuxaudio.org/mailman/listinfo.cgi/linux-audio-user > > > My echo card is about half height, though it's not just adat, the > gina3g is adat and 2 mic pre's or the layla is more analog ins/outs. > > http://www.soundonsound.com/sos/jan05/images/echolayla3g.l.jpg > > Loki >

18 years, 1 month

Re: difference between realtime-kernel and low-latency-kernel?

by Kjetil S. Matheussen

Florian Schmidt: >> Generally we have two kinds of kernels: The "vanilla" kernel as >> downloadable on kernel.org and the same kernel, but patched with Ingo >> Molnars RT-patches. The vanilla kernel, if configured properly with >> CONFIG_PREEMPT etc., already gives very good performance in the low >> latency department, enough for many users, even audio users. I run one >> of these. > > Well, the vanilla kernel also has a CONFIG_HZ setting of i think 200hz per > default. This is too little timing resolution for processes that rely on the > system timer frequency being higher [some sequencers come to mind].. > > The "lowlatency" kernel in ubuntu thus has CONFIG_HZ set to 1000 and > CONFIG_PREEMPT enabled. > You don't need a lowlatency kernel to be able to set CONFIG_HZ to 1000. Its just the default value in vanilla which is 250Hz, but you can set it to 1000 if you want to. > This might be good enough for some people.. > > For a truly reliable system (where you can count on no audio period being > missed because you forgot to disable the damn updatedb cronjob) you need a > system patched with ingo's realtime preemption patches and have it properly > configured. Hasn't this been fixed a long time ago? Its true that you were required to have a realtime kernel when using linux 2.4 to avoid dropouts for cronjobs etc., and in practice you probably also couldn't get reliable realtime performance with old versions of 2.6. But I thought it shouldn't be like that anymore? At least I haven't had any dropouts with my vanilla 2.6 kernel as long as I've used it.

18 years, 1 month

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Linux-audio-user October 2007