Linux-audio-user September 2006

linux-audio-user@lists.linuxaudio.org

165 participants
155 discussions

[linux-audio-user] RE: PCI Express or Firewire interface with TOSLINK

by Richard Edward Horner

>> > I'm looking for either a PCI Express or Firewire interface that has AT >> > LEAST 16 channels in and out (preferably 24) of lightpipe (TOSLINK) >> > I/O that works in Linux as I'm wondering if it's possible to use an >> > 02R96 with one of the new Mac Pros (which do not have any standard PCI >> > slots). They come with TOSLINK I/O but it's only one port in and out >> > and I imagine they probably aren't working in Linux yet. > >Those TOSLINK connections are stereo only or if you have an external AC3 >decoder, then you could pull out a 5.1 (I've heard that they may have had >some problems with this and that the feature might be temporarily >unavailable). Either way, that particular connector is a far cry from your >24-channel requirement. Yikes. I missed that on the spec. Thanks for the heads up. That seems odd that they would use optical instead of just SPDIF. Thanks, Rich(ard) -- Richard Edward Horner Composer Electric Guitar Virtuoso http://richhorner.com - updated June 8th

19 years

[linux-audio-user] Re:FreeBob compiling problem

by Steven Walker

OK, I installed Subversion and got the latest libiec61883 code, but I still can't run autoconf (or autoreconf, as Pieter suggested). The output I get looks like this: [root@localhost libiec61883]# autoreconf -f -i -s Can't locate File/stat.pm in @INC (@INC contains: /usr/share/autoconf /usr/lib/perl5/5.8.8/i386-linux /usr/lib/perl5/5.8.8 /usr/lib/perl5/site_perl/5.8.8/i386-linux /usr/lib/perl5/site_perl/5.8.8 /usr/lib/perl5/site_perl/5.8.6 /usr/lib/perl5/site_perl/5.8.5 /usr/lib/perl5/site_perl/5.8.4 /usr/lib/perl5/site_perl/5.8.3 /usr/lib/perl5/site_perl /usr/lib/perl5/vendor_perl/5.8.8/i386-linux /usr/lib/perl5/vendor_perl/5.8.8 /usr/lib/perl5/vendor_perl/5.8.6 /usr/lib/perl5/vendor_perl/5.8.5 /usr/lib/perl5/vendor_perl/5.8.4 /usr/lib/perl5/vendor_perl/5.8.3 /usr/lib/perl5/vendor_perl .) at /usr/share/autoconf/Autom4te/FileUtils.pm line 36. BEGIN failed--compilation aborted at /usr/share/autoconf/Autom4te/FileUtils.pm line 36. Compilation failed in require at /usr/bin/autoreconf line 45. BEGIN failed--compilation aborted at /usr/bin/autoreconf line 45. So I locate stat.pm: [root@localhost libiec61883]# locate stat.pm /usr/local/lib/perl5/5.8.8/File/stat.pm /usr/src/perl-5.8.8/lib/File/stat.pm /usr/lib/perl5/5.8.6/File/stat.pm Sure enough, none of those paths are in the @INC array. Can anyone tell me how to add paths to the @INC environment variable? Thanks, Steve

19 years

[linux-audio-user] so.... u wish to hear something completely horrible

by Andrew Lewis

It's a mash-up of other artists stuff, so it can be considered non-free/probably copyright infringement - if you are the artist or their representation, please don't sue! http://xzghgh.za.org/ladiesnitenoizfest/part1.ogg ^^ There's a part2 azwell, which isn't quite as good.... This was all done with TerminatorX, completely live and un-edited. I'm using TerminatorX to make some mixes of my original material too (which I'm sorry to say at this point - was made mostly with 'that other OS', but my Linux stuff is coming along). I'm very interested in GDAM but at this point, haven't managed to get it to make noise yet. ;( Also interested in using TerminatorX to make original compositions. Yesterday was women's day in South Africa, thus the night before was 'Ladies Nite'??? Artists I should credit (those of which I can remember in any case): part1: Kevin Blechdom, Minibosses, Dev/Null, Xanopticon, Maldoror part2: Radiohead, Gold Chains & Sue Cie, Nirvana, Vladislav Delay, Some bollywood music I forget :\ Completely unrelated to linux music or this post but plz checkout this very xcellent artist: http://computertruck.parishq.net/ And this great artist who introduced me to him: http://www.goto80.com That will be all, Andrew

19 years

[linux-audio-user] OT Good material for DIY headset microphone.

by Alex Polite

This is really OT. I'm thinking of doing some experimentation with audio beamforming[1]. For this I need to construct my own headset microphones, with multiple microphone capsules per headset. Getting the capsules, the microphone wire and doing the soldering should be dead simple. But I have no idea as to what material to use for the frame. A very thick metal wire surrounded in some kind of foam, maybe? Wire is good because it's easy to form during construction of the headset, but bad because it's also easy to deform when using the headset. The ideal material would be some kind of plastic that behaves like thick metal wire until you bake. Then after you've baked it, it should behave more like the plastic used in ordinary headsets and headphones. TIA alex [1] http://en.wikipedia.org/wiki/Beamforming Some pics of headset mics: http://tinyurl.com/mz36a http://tinyurl.com/lt7yy http://tinyurl.com/r69a7 http://tinyurl.com/e8z6d -- Alex Polite

19 years

[linux-audio-user] Very short composition

by Tim Howard

Hello all, Here is my first ever piece of Pure Linux Audio to be released to the general public. But before you get too excited, I should say that this just started out as a test to see what I could do, and I ended up kind of liking it. :-) Here are the links: http://www.banjoboy.ms11.net/music/test2b.ogg http://www.banjoboy.ms11.net/music/test2b.mp3 Please give me some feedback! I would love to learn ways to produce better music with these programs. This is an instrumental piece with no name. The drums are by Hydrogen (actually, I just used the GM_kit_demo2.h2song included in the package... I'm such a cheater! ;-P) Additional "percussion", bass, and the choir sound were courtesy of ZynAddSubFX, and the electric guitars were processed with some custom patches in Om. And of course, the whole thing was recorded and mixed in Ardour and mastered with Jamin. Many thanks to all the developers involved with these programs! They are top notch. You are our heroes. Seriously. -TimH

19 years

[linux-audio-user] Using USB MIDI boxes with another soundcard under JACK?

by Joseph Jones

So I have an M-Audio Black Box guitar system, which I love for giving somewhere to plug my instrument-level gear straight into my little Shuttle that I use for audio work. Unfortunately, the Black Box doesn't have a midi-in (other than a clock port), so what I'm wondering is whether it's at all possible to use a seperate device to handle midi. I know you basically can't do that with audio devices, but I thought midi might be a possibility. Any help is much appreciated :) -- Joe Jones -----BEGIN GEEK CODE BLOCK----- Version: 3.1 GCS/MU d-- s+:-- a-- C++ UL+ L++ E---- W++ w M t(++) 5++ tv D++ e+ h-- ------END GEEK CODE BLOCK------

19 years

[linux-audio-user] Rezound with gcc 4.1

by yves_p＠nnx.com

Hi. Would anyone have a workaround for rezound to compile with gcc 4.1, i.e. with gentoo 2006.1 ? The problem is with fox 1.4 : http://bugs.gentoo.org/show_bug.cgi?id=102606 And there's also this, which made me stop searching and posting this mail : http://bugs.gentoo.org/show_bug.cgi?id=141426 What happens on my system is that I have fox 1.4 not compiling (parallel build failed), and as said in the bug report, even without any parallel compilation, it doesn't compile. But Fox 1.6 compiles fine, and then rezound asks for the previous version of fox and doesn't compile... Any help appreciated :). Thanks in advance, Y.

19 years

[linux-audio-user] Multiple sound interfaces, ALSA order detection

by Jerome Tuncer

Hi everyone, I'm sorry if this has been dealt with before but I can't seem to find anything about it... I have two sound interfaces in my Debian unstable PC box: one being the motherboard (ASUS P4P800SE) chipset's (Intel ICH5) and the other a M Audio Delta 66. I want to be able to use both, the internal for mp3 playback/plain music listening and the Delta for music making (mainly Pure Data). I created aliases for the interfaces (in /etc/asound.conf) as indicated in Alsa's website docs: pcm.!default { type hw card 0 } ctl.!default { type hw card 0 } pcm.ICH5 { type hw card 1 device 0 } pcm.Delta66 { type hw card 0 device 0 } The remaining problem is that everytime I reboot, the order of the hw:0 and hw:1 is sometimes swapped i.e. one day hw:0 will be the ICH5 and the next day could be that the Delta is detected as hw:0. What do I have to do so that one order is preserved upon reboot/re-detection of the interfaces? ++ Jé

19 years

[linux-audio-user] PCI Express or Firewire interface with TOSLINK

by Richard Edward Horner

Hi, I've been unable to find an interface that fits this bill. I'm hoping that either someone can recommend an interface that fits the bill or definitively tell me that one does not exist. I'm looking for either a PCI Express or Firewire interface that has AT LEAST 16 channels in and out (preferably 24) of lightpipe (TOSLINK) I/O that works in Linux as I'm wondering if it's possible to use an 02R96 with one of the new Mac Pros (which do not have any standard PCI slots). They come with TOSLINK I/O but it's only one port in and out and I imagine they probably aren't working in Linux yet. Thanks, Rich(ard) -- Richard Edward Horner Composer Electric Guitar Virtuoso 206.856.2808 rich(a)richhorner.com http://richhorner.com - updated June 8th

19 years

[linux-audio-user] xruns every 30 seconds

by Dominic Sacré

Hi, I'd like to run jack on a rather old laptop (IBM Thinkpad X21, P3 700MHz). The problem is that I'm getting xruns almost every 30 seconds. That is, not every time, but the interval between two xruns is always an exact multiple of 30 seconds. There's quite a long dropout of almost one second each time an xrun occurs. Jack output looks like this: delay of 34010.000 usecs exceeds estimated spare time of 4075.000; restart ... 03:32:01.992 XRUN callback (13). delay of 31715.000 usecs exceeds estimated spare time of 4124.000; restart ... 03:32:32.003 XRUN callback (14). delay of 39019.000 usecs exceeds estimated spare time of 4086.000; restart ... 03:33:01.993 XRUN callback (15). delay of 41527.000 usecs exceeds estimated spare time of 4078.000; restart ... 03:34:02.000 XRUN callback (16). delay of 33218.000 usecs exceeds estimated spare time of 4124.000; restart ... 03:34:32.010 XRUN callback (17). I'm running Ubuntu Dapper with vanilla kernel 2.6.17.11. This is with a USB audio interface (Behringer UCA 202), and jack is running realtime, set to 48kHz, 3 periods, 128 frames, duplex (tried playback only, too). Any ideas what might be causing these xruns? Thanks, Dominic

19 years

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Linux-audio-user September 2006