Linux-audio-user January 2007

linux-audio-user@lists.linuxaudio.org

187 participants
180 discussions

Re: [linux-audio-user] Aldrin 0.9 and llvm

by David Baron

>>> try some of the prepackaged binaries. i used the redhat ones with >>> ubuntu. >>OK, I will get the redhat rpm and alien that into Debian (Ubuntu is built on >>Debian) and see it that works. Since their binary names conflict with generic >>ones like gcc (why did they do such a thing?), they must install somewhere >>else and symlink to an llvm-gcc as per their instructions. How does the rpm >>take care of this? >OK, this is not an rpm. The whole thing can be placed in home or /opt and used >as one sees fit. Worst can happen is another segfault, I suppose :-) Built aldrin. Started it up. No segfault (yet). Got the filepath error sited in an earlier post. I did not understand the reply to that one. How to fix?

17 years, 11 months

Re: [linux-audio-user] Aldrin 0.9 and llvm

by David Baron

>> try some of the prepackaged binaries. i used the redhat ones with >> ubuntu. >OK, I will get the redhat rpm and alien that into Debian (Ubuntu is built on >Debian) and see it that works. Since their binary names conflict with generic >ones like gcc (why did they do such a thing?), they must install somewhere >else and symlink to an llvm-gcc as per their instructions. How does the rpm >take care of this? OK, this is not an rpm. The whole thing can be placed in home or /opt and used as one sees fit. Worst can happen is another segfault, I suppose :-)

17 years, 11 months

[linux-audio-user] Were's the weak link?

by linuxmedia4＠netscape.net

Hi, I installed the Indigo IO card on my FC5/CCRMA system. I've done everything I could think (or was suggested) to optimize my system to allow for smooth, uninterrupted recording, including buying a 7200rpm drive, tunning my hard disk, trying different 'Frames/Period' and 'Periods/Buffer' settings in qjackctl. My BIOS dosen't allow for reordering of IRQs, so I disabled any peripheral that I absolutly could do without, but I'm still having problems. I'm running ecasound and jackd (both with realtime priorities). When recording or in playback, sometimes I hear disruptions, but they don't always end up in the actual recording. But there are *always* a few noticeable pops, clicks or even loss of data in the actual recorded audio files. Can anyone spot where the "weak link" is in my system. I put in this post (what I believe) is the most relevant information... My system... Dell Precision M50 laptop 2 GHz Processor 1 Gig Ram 2.6.16-1.2080.16.rrt.rhfc5.ccrma 7200rpm hard drive 'cat /proc/interrupts' (before disabling peripherals) shows: 0: 3945911 XT-PIC [........N/ 0] pit 1: 2898 XT-PIC [........./ 6] i8042 2: 0 XT-PIC [........N/ 0] cascade 5: 16931 XT-PIC [........./ 0] Intel 82801CA-ICH3 Modem, Intel 82801CA-ICH3 7: 4 XT-PIC [..P....../ 0] parport0 8: 1 XT-PIC [........./ 0] rtc 9: 2 XT-PIC [........./ 0] acpi 11: 8900 XT-PIC [........./ 0] yenta, yenta, yenta, pcmcia2.0, Indigo IO, uhci_hcd:usb1, uhci_hcd:usb2, ohci1394 12: 78714 XT-PIC [........./ 6] i8042 14: 74419 XT-PIC [........./ 1] ide0 NMI: 0 LOC: 0 ERR: 0 MIS: 0 '/sbin/hdparm /dev/hda' shows... multcount = 16 (on) IO_support = 3 (32-bit w/sync) unmaskirq = 0 (off) using_dma = 1 (on) keepsettings = 0 (off) readonly = 0 (off) readahead = 256 (on) geometry = 16383/255/63, sectors = 117210240, start = 0 (3 reads of) 'hdparm -Tt /dev/hda'... /dev/hda: Timing cached reads: 1368 MB in 2.00 seconds = 683.60 MB/sec Timing buffered disk reads: 112 MB in 3.03 seconds = 36.93 MB/sec /dev/hda: Timing cached reads: 1368 MB in 2.00 seconds = 682.87 MB/sec Timing buffered disk reads: 120 MB in 3.02 seconds = 39.68 MB/sec /dev/hda: Timing cached reads: 1368 MB in 2.00 seconds = 683.64 MB/sec Timing buffered disk reads: 120 MB in 3.02 seconds = 39.75 MB/sec Thanks, Rocco

17 years, 11 months

[linux-audio-user] [Announce] IanniX 0.639b online

by Thierry Coduys

Hi IanniX 0.639b is now online with new examples : http://sourceforge.net/project/showfiles.php?group_id=174402 Any feedback, comment, bug report, etc, would be greatly appreciated and can be posted to the following mailing-list: https://lists.sourceforge.net/lists/listinfo/iannix-discussion The IanniX Team.

17 years, 11 months

[linux-audio-user] autographed copies of Rosegarden Companion

by Marcos Guglielmetti

http://www.musix.org.ar/wordpress/?p=52 This is a great Book about the MIDI sequencer Rosegarden: http://rosegarden.sourceforge.net/tutorial/, that works into GNU/Linux. Now you can help the author (he is also a developer) buying an autographed copy, just send him a mail: “D. Michael McIntyre” Thanks! -- Marcos Guglielmetti * Director del desarrollo de Musix GNU+Linux, 100% Software Libre * CD Donwload: (http://www.musix.org.ar/en/) * Videos, programas y otras cosas en: ftp://musix.ourproject.org/pub/musix/ * Reporte de errores a: https://www.musix.org.ar/wiki/index.php?title=Problemas-Bugs *IRC: #musix channel on freenode * http://autosus.wordpress.com/

17 years, 11 months

Re: [linux-audio-user] Were's the weak link?

by linuxmedia4＠netscape.net

>> Can anyone spot where the "weak link" is in my system. I put in this >> post (what I believe) is the most relevant information... > judging from the huge duration of these timeouts > it really doesn't look like you are running a rt > kernel. > uname -a > says? bash# uname -a Linux localhostlocaldomain 2.6.16-1.2080.16.rrt.rhfc5.ccrma #1 PREEMPT Tue Jul 25 15:06:37 EDT 2006 i686 i686 i386 GNU/Linux Maybe I'm confused about what it really means to run an rt kernel, but I'm running FC5/CCRMA and this is what the install page reads... ======================================================== Installing the low latency kernel Planet CCRMA provides versions of the Linux kernel with one crucial difference with the standard kernel, the inclusion of the realtime preemption patch by Ingo Molnar. Planet CCRMA on Fedora Core 5 currently includes two kernels with slightly different configurations of the realtime preemption patch. The more conservative is configured as PREEMPT_DESKTOP, the more adventurous is configured as PREEMPT_RT. The latter will give you (if it works on your hardware) much better low latency performance. As usual what you get in terms of latency depends on the exact mix of hardware you are running on. ======================================================== I'm running the kernel configured as PREEMPT_RT. > also I found that the rtirq script was "not doing the right thing" > on later kernels > > Also give ingo's kernel a shot I'll have to check with the CCRMA list and see if anyone has had problems with the rtirq script on their FC5/CCRMA systems with this kernel. > Is cpuspeed running? If so, disable it. Bear with me... this is all new to me... Do I understand that 'chkconfig' would be the command to disable cpuspeed? If so, would you suggest that I disable it for all runlevels? This is the output of '/sbin/chkconfig --list cpuspeed'... cpuspeed 0:off 1:on 2:on 3:on 4:on 5:on 6:off So... '/sbin/chkconfig --level 12345 cpuspeed off' would disable it for all runlevels? Rocco

17 years, 11 months

[linux-audio-user] East To West

by Folderol

This is now more or less complete, so if you are interested it is at: http://www.musically.me.uk/music/East_To_West.ogg http://www.musically.me.uk/music/East_To_West.mp3 I hope you like it. -- Will J G http://www.musically.me.uk

17 years, 11 months

[linux-audio-user] [ANN] Aldrin 0.9 (Mercury)

by Leonard Ritter

Aldrin is an open source modular music sequencer/tracker for the GNU/Linux operating system. We're proud to announce the release of Aldrin 0.9 (Mercury). This release marks the end of Aldrin's "carnivore" cycle, a development line that was oriented towards a faithful imitation of Jeskola Buzz. "Mercury" is the first release of the "planet" cycle, a metaphoric journey from the center of our solar system to other places of the milky way, passing all other planets and moons as we move along, to the stars and beyond. Here is a short overview of the most relevant features introduced in this version: * Plugin and connection context menus have a new feature called "Insert/Prepend Plugin", enabling you to insert new plugins without disrupting the current DSP processing pipeline. * Deleting plugins will now restore previous connections. * A new function "Loop Fit" for samples, which adjusts a samples speed to match a current tempo. * Plugin LEDs in the router have been extended to fully fledged VUs, and thus can now display volumes of emitted signals. * Overdrive warnings for master and plugin VUs. If the measured volume reaches 0dB, the bar will flash bright red to indicate loss of quality. * The sequencer has been remixed and shows patterns now with distinguishing colors (automatically calculated). Pattern length is now being visualized as well. * A new Audio Input plugin allows real-time DSP processing of microphone and line input. * Thanks to libzzub's new LLVM-powered Lunar DSP plugin engine, a bunch of new plugins: Filter, Panning, Gain, a Kick Synthesizer and the Lunar MiniSynth, which is a Bass Synthesizer supporting DASR filter envelopes. * Various user interface simplifications. Enjoy this new version and visit us on #aldrin on freenode.net, or subscribe to the Aldrin mailing list. http://www.leonard-ritter.com/announcement_aldrin_0_9_mercury -- Leonard Ritter -- Freelance Art & Logic -- http://www.leonard-ritter.com

17 years, 11 months

[linux-audio-user] Building a new music PC / on-board video suggestions?

by Larry Troxler

Hey all, it's that wonderful time where I'm picking components for a new music machine. It would mostly be used at home, but occasionally taken to rehearsalls and gigs, where it would function as a synthesizer. At first I was looking at rackmounts, say 2U, but got a bit concerned about how quiet they could be made. I then found this: http://www.antec.com/us/productDetails.php?ProdID=15738 It looks super, and has got good reviews with respect to quietness, and apparently there is a driver for the LCD display, which will come in handy for using it as a gig synth; I suppose I will look for some sort of USB button panel that also has Linux support. From the dimensions, it seems that it would fit into a 19 inch rack. So I wonder if I could buy or fashion some brackets so that I could put it into a rack when needed. I would get a single quiet hard drive, and try 64 studio, but this time I'll remember to set aside a couple of blank partitions in case I want to try another distro later. My main problem is deciding on a motherboard. I've been an AMD fan and I'm not quite ready yet to go back to Intel, even though I've read that the new Intel dual core is really giving AMD some competition. And since that case only fits a micro ATX motherboard, and since it seems like the AM2 socket is the way to go, it sort of limits my choices. And my main concern is with the on-board video. I am not interested at all in good quality video or 3D accel, but instead my priority is to pick a chipset that provides the least hassle in Linux, and is not disruptive with real-time operation. This is what New Egg has to offer: http://www.newegg.com/Product/ProductList.asp?Submit=ENE&N=2010200022+10709… It looks then, like the video choices are Nvidia GeForce 6100, Nvidia GeForce 6150, VIA K8M800, VIA K8M890, and ATI Radeon XPress 1150. So, if anyone has suggestions on which of these might be best, it would be nice to hear. I could of course throw in an older video card if that turns out to be better, but I am hoping to avoid that so as not to use up another slot on the micro ATX board. Larry Troxler

17 years, 11 months

[linux-audio-user] Cheap USB "soundcards" (resending. Now with subject)

by Hasse Hagen Johansen

Sorry forgot the subject in the last mail Hi I am looking at usb soundcards for listening to music on my laptop. Right now I got down to three candidates: - Terratec Aureon 5.1 USB MKII Pros: Cheap.Have both TOSLINK in/out Cons: "Only" 16bit up to 48KHz - Audiotrak Optoplay Pros: 24bit/96KHz Cons: No TOSLINK input - Roland Edirol UA-1EX Pros: 24bit/96KHz.Has TOSLINK in/out Cons: Cost about 40% more than the others What I need is soundcard with stereo output to headphones,line out,and preferable TOSLINK in/out(It would be useful sometimes, but is not a must) Any other suggestions is also welcome. Also higher end cards on USB/PCCARD which I can buy used(RME hdsp with multiface is a bit overkill though) Any one have any experience with such cards and can recommend something? Regards Hasse H. Johansen

17 years, 11 months

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Linux-audio-user January 2007