Linux-audio-user July 2008

linux-audio-user@lists.linuxaudio.org

125 participants
124 discussions

[LAU] building csound from source - OOps/remote.c:70: error: storage size of 'ifr' isn't known

by Brad Fuller

Trying to build C5.08 on gentoo so that I can build the java wrapper (to try AVSynthesis). Rcv'd the following error. Google turns up only one search that didn't help. usr/X11R6/include OOps/remote.c OOps/remote.c: In function 'getIpAddress': OOps/remote.c:70: error: storage size of 'ifr' isn't known scons: *** [OOps/remote.os] Error 1 scons: building terminated because of errors. I thought maybe it was that I emerged SWIG w/o a 'java' or 'python', but I set those flags and no change. or, if there is a way to create a java wrapper using gentoo USE flags, that's much easier (I'm using the proaudio overlay). I set java USE flag, but it didn't create the java wrapper. That lead me to compile from 5.08 source. thanks much! brad -- Brad Fuller www.bradfuller.com

17 years, 7 months

[LAU] pretty much frustrated about those rt-kernels!

by schoappied

Hi, I'm very much pist off about those real time kernels!!! Why is there no decent debian realtime kernel? If they can build thousands of kernels for Debian, why not one decent real time kernel?!?!?!? I'm using now one of musix, but I can't build my nvidia driver on it. Thats a little problem, but with my normal debian kernel I have wireless internet connection with one click... but 6 of the 10 times on that rt-kernel is failed :/ Why??? Maybe linuxaudio.org should put some 'pressure' on those distro builders to include a decent realtime kernel! ... Does someone have a good kernel for me (debian testing/ unstable) /d

17 years, 7 months

Re: [LAU] Large live recrodings ?

by David Forsyth

Date: Wed, 02 Jul 2008 13:38:11 +0200 (CEST) From: "Kjetil S. Matheussen" David Forsyth: >> >> At this point, I'd be happy to do an 8 track recording. For >> important live recordings I would not use a laptop, but instead a >> decent desktop with a RAID 0 array of at least 3 SATA2 disks for >> the audio files, with the system on another disk. >> >I think that is complete overkill. I just tried recorded 128 channels >of 32bit/44100hz at once, without problem. And my machine is 5 years >old 2Gz barebone, using only a single PATA ide disk. >This was using jack_capture, and only recording silence (ie. >non-connected jack ports). Maybe the silence makes a difference.(?) I think you're missing all the interrupts that would happen if your audio hardware was sampling and sending data to the jack ports. and then the conflict between the PCI transfers of that data and the DMA->PCI transfers to disk... I had trouble with my 8 channel setup until I sorted out the SATA settings. I still say that for a large important (one chance) recording I'd use more hardware than a laptop can supply, even if I have to hire it or assemble it specially for the show. >256 channels did not work very well though. heh (-: -- David http://iwr.ru.ac.za/~iwdf/ If you receive email saying "Send this to everyone you know", PLEASE pretend you don't know me.

17 years, 7 months

[LAU] Magic?

by Nicolai Beuermann

is something like this http://www.celemony.com/cms/index.php?id=dna&L=0 imagined or actually realised in linux audio world? Sorry to be slightly off topic. nico -- mailto: nicolai.beuermann(a)gmx.de http://www.nico-beuermann.de gnupg fingerprint: 56DA 4E32 3A4A 52AC B769 DFC2 BF3E 9805 09BB 4259

17 years, 7 months

Re: [LAU] read after write

by Kjetil S. Matheussen

Nicolai Beuermann: > > Does anybody has an idea to get read after write audio control. More precisely > howto record mp3 files and listen to the resulting file to monitor the > recording/encoding process? > Here's a way using jack_capture for recording, lame for converting, and mplayer for playing: (xterm -e 'jack_capture -ws|lame -s 44.1 -V2 -r -x - output.mp3' &) && sleep 2 && mplayer -ao jack output.mp3 (Note that jack_capture v0.17 and v0.18 won't work with the above options, but all other versions should. V0.19 is just uploaded to http://old.notam02.no/arkiv/src/.)

17 years, 7 months

Re: [LAU] pretty much frustrated about those rt-kernels!

by schoappied

Ronald Stewart wrote: > the best RT kernel I have used is the good ol' 64studio version cooked by Free. > I can run my entire studio environment with Indamixx opening apps such > as ardour and hydrogen while streaming audio via IDJC over the net on > battery with wifi and editing in audacity... no xruns no dropout in > streaming audio while screen brightness/dims all at the same time. > Likewise I can run idjc with skype and pidgin while doing my audio > edits and production/multitracking in ardour or audacity with no > problems. > 800mhz I gig of RAM > rock solid and pocket sized. > We worked 14months on this build to get it right for those guys out > there who don't want to brew their own. Lastly, we tried RT stuff > from handy heron, ubuntu studio and others and they are not the type > of RT that we offer. I felt great when the off the shelf and home > brew stuff fell way short of a true pro audio low latency experience. > > Thank you > > Ronald Stewart > www.indamixx.com > > On Sat, Jul 5, 2008 at 6:03 PM, Mark Knecht <markknecht(a)gmail.com> wrote: > >> On Sat, Jul 5, 2008 at 4:12 PM, schoappied <schoappied(a)gmail.com> wrote: >> >>> Mark Knecht wrote: >>> >>>> On Sat, Jul 5, 2008 at 8:46 AM, schoappied <schoappied(a)gmail.com> wrote: >>>> <SNIP> >>>> >>>> >>>>> I've read on the debian irc channel that it is not necessary to do a >>>>> rt-patch with the newest kernels (.25.10), just set in menu config: >>>>> >>>>> processor type and features >> preemtible kernel (low -latency desktop) >>>>> >>>>> and Timer frequentie to 1000 Hz. >>>>> >>>>> Can anyone confirm this? >>>>> >>>>> >>>> Not at all true. That strategy will give you a good kernel, but it is >>>> not a 'real-time' kernel. You're best bet is to use the specific patch >>>> set supplied by Ingo and the RT team. >>>> >>>> Hope this helps, >>>> Mark >>>> >>>> >>>> >>> whow, Ive spend I think 20 hours to build a kernel but it constantly >>> fails.... :( :( :( >>> >>> I tried everything with help from IRC and documentation, but different >>> errors... >>> >>> for example: http://pastebin.com/m5bc649d >>> >>> I use a kernel for kernel.org and a rt-patch which fits it... >>> I patch the files as described in this howto: >>> http://forums.debian.net/viewtopic.php?t=17035&postdays=0&postorder=asc&sta… >>> >>> I use: make oldconfig (skip the questions with ENTER) and then make xconfig >>> And set: >>> rocessor type and features> Preemption Mode (Complete Preemption >>> (Real-Time)) >>> Processor type and features>Timer frequency (1000 HZ) >>> >>> Then: >>> $ make-kpkg clean ; export VER=$(date +'%Y%m%d') >>> NAMEEXT="-$(hostname)-$(dpkg-architecture -qDEB_HOST_ARCH)"; make-kpkg >>> --revision=$VER --append-to-version=$NAMEEXT --rootcmd fakeroot --initrd >>> kernel_image kernel_headers >>> >>> Can it fails because of the new kernel versions I try to build? >>> Or do I make errors in making the .config file? >>> >> I'm not at all clear what this previous command does. the normal set >> of build instructions at this point is very simple >> >> make && make modules_install >> >> Even if that isn't the 'Debian' way, is it possible to build and >> install a kernel as the kernel designers intended it or does that not >> work on Debian? >> >> Maybe there's another Debian user here who can help you. I'm Gentoo >> based and it's pretty straight forward here. >> >> - Mark >> _______________________________________________ >> Linux-audio-user mailing list >> Linux-audio-user(a)lists.linuxaudio.org >> http://lists.linuxaudio.org/mailman/listinfo/linux-audio-user >> >> > > Where can I find the 64studio kernel and headers?

17 years, 7 months

[LAU] LADSPA Vocoder plugin

by Gordon JC Pearce

For a while I've been using the sirlabs.de vocoder plugin: http://www.sirlab.de/linux/descr_vocoder.html But it has some problems, notably expecting two inputs but only offering one output. There was a patch on linuxrockstar which gave it two outputs, but something seemed a bit lacking, still. An evening of hacking and here we have it: http://www.gjcp.net/~gordonjcp/vocoder.tar.bz2 It's hard-set to eight bands, all with the same level. There's a bandspread control to alter the frequency spacing of the partials, and a width control to vary the stereo effect where odd bands go to the left output and even bands go to the right output. Give it a go and let me know how you get on. Gordon

17 years, 7 months

Re: [LAU] pretty much frustrated about those rt-kernels!

by schoappied

R Dicaire wrote: > On Fri, Jul 4, 2008 at 10:05 AM, schoappied <schoappied(a)gmail.com> wrote: > >> I'm using now one of musix, but I can't build my nvidia driver on it. >> >> Thats a little problem, but with my normal debian kernel I have wireless >> internet connection with one click... but 6 of the 10 times on that >> rt-kernel is failed :/ Why??? >> >> Maybe linuxaudio.org should put some 'pressure' on those distro >> builders to include a decent realtime kernel! >> > > I can sympathize with your frustration. However maybe you should learn > to build your own. Please try to remember that stock kernels aren't > specific to your particular configuration, they are simply a "one size > *tries* to fit all" solution. Its always best to build to your > specific hardware setup if the stock kernel doesn't meet your needs. > > Welcome to open source. Feel free to learn how to change it to suit your needs. > > In that same vein, I've had 0 problems with Slackware, Red Hat, > Ubuntu, Debian testing, using my own custom kernels. > > Good luck. > > I like to learn it. Do you have a good tutorial? But anyway it would be good if there is a rt kernel in all the distros, there are also people who don't like or can't make a rt-kernel. Like Ubuntu has a real time kernel included...

17 years, 7 months

[LAU] read after write

by Nicolai Beuermann

Does anybody has an idea to get read after write audio control. More precisely howto record mp3 files and listen to the resulting file to monitor the recording/encoding process? thanks nico -- mailto: nicolai.beuermann(a)gmx.de http://www.nico-beuermann.de gnupg fingerprint: 56DA 4E32 3A4A 52AC B769 DFC2 BF3E 9805 09BB 4259

17 years, 7 months

Re: [LAU] How to listen to songs on myspace without proprietary software?

by Nils Gey

Thats right, the wrapper is there. For me it has not worked fully, but maybe thats a different thing. BUT even then a 64bit firefox is not ready to use the Web 2.0 fully. The google toolbaris not working in 64bit, for example. And there are other things. Of course, standard html browsing just works fine, but in a creative enviroment one needs more. Nils On Sat, 5 Jul 2008 12:05:31 -0700 "Brad Fuller" <bradallenfuller(a)gmail.com> wrote: > On Sat, Jul 5, 2008 at 12:01 PM, Nils Gey <ilfhi(a)gmx.de> wrote: > > I know this problem. > > > > I'm on 64studio (debian). I tried this and that but the only thing which was statisfying was a 32bit Firefox. I found a Ubuntu-tutorial, which works for Debian64, which describes how you can install 32bit Firefox without using a chroot enviroment. I actually don't know where it is. Maybe It was in German. > > > > But its easy to install, easy to use and its just one programm. > > you can run 64bit firefox and use nspluginwrapper to run the 32bit flash > http://gwenole.beauchesne.info//en/projects/nspluginwrapper > > You also have to set the 32bit emulation in the kernel. If you have > gentoo, here's some instructions. If not, it'll give you the way to do > it. > http://gentoo-wiki.com/HOWTO_Flash_9_and_Firefox > > > > -- > Brad Fuller > www.bradfuller.com

17 years, 7 months

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Linux-audio-user July 2008