Linux-audio-user May 2003

linux-audio-user@lists.linuxaudio.org

101 participants
106 discussions

RE: [linux-audio-user] xruns: file system ext3 --> reiserfs?

by Jon Bonds

Can someone give me the link to unsubscribe? Thanks, JB -----Original Message----- From: derek holzer [mailto:derek@x-i.net] Sent: Friday, May 02, 2003 2:50 PM To: linux-audio-user(a)music.columbia.edu Subject: Re: [linux-audio-user] xruns: file system ext3 --> reiserfs? Mark Knecht wrote: >There are some kernel patches out there dating back to last year, along >with some technical info, but possibly those require a kernel recompile >which is a pretty drastic step for you to take right now. > >http://lwn.net/Articles/5584/ > >Here's one interesting thread I found with some interesting info: > >https://listman.redhat.com/pipermail/ext3-users/2001-November/002152.html > i tried applying the 2.4.20 + ext3 kernel patches located at http://www.zip.com.au/~akpm/linux/ext3/ earlier this week. not only did they not apply properly, but they screwed up my low-latency and preemptive patches too. luckily, the errors were so bad that the kernel simply didn't compile. so i think i will pass on any more kernel-tinkering. so, back to plan A: with all of your helpful suggestions, i will convert file systems this eve. the good news so far is that running PD under Alsa as root with an -rt flag does wonders for the sound [nothing glitches it up except moving a window on screen], so i predict much Jack happiness with its own realtime capabilities working right. [why not run realtime Jack as root? you may ask... on my setup, with the new shm version of Jack, running it as root makes a logfile in the /dev/shm directory which not only jams up the Jack/Alsa communication somehow, but also prevents an ordinary user from starting Jack until this logfile is removed. don't know if this is the case for any of the rest of y'all.] best + thx again everybody for a very informative thread, derek

21 years, 7 months

[linux-audio-user] [OT?] glibc problems

by Ivica Bukvic

Hi all, I know this is off-topic, but at this point I could use any help I could get since I am just about ready to do a clean reinstall (Something that I do really not feel like doing right now). I had Mdk 9.0 and upgraded it to 9.1. Since, when I have dynamically linked apps to the /usr/lib/libc.so.6 (or /usr/lib/libc.so) I always get the same error: Error while loading shared libraries: /usr/lib/libc.so.6: invalid ELF header I tried reinstalling 9.1 glibc and glibc-devel and that did not fix it. I also tried installing libelf rpm for mandrake and that did not do a thing. Finally I even installed the newest cooker version of these two files and I still come up with the same error. This brings me to a conclusion that the problem lies somewhere else, but where? Rebuilding of glibc from srpm eventually fails with some weird error (can't remember it any more), so that option is out of question. Furthermore, what is really odd, is that the clean install on another machine of the same distro does not have this problem, yet the files in question libc.so (and other related ones) are IDENTICAL to the ones I have on this machine (at least they were before I installed the latest glibc from the cooker). I also checked binutils package and it is the same on both machines. So what gives? Does anyone have any suggestions as to how could I go about resolving this issue? Any help at this point is greatly appreciated! Sincerely, Ivica Ico Bukvic, composer & multimedia sculptor http://meowing.ccm.uc.edu/~ico

21 years, 7 months

Re: [linux-audio-user] [ANN] Scala 2.06

by Manuel Op de Coul

Brian, Michael, Scala only depends on GTK+ and GtkAda. I'm not sure about the status of GTK+ on OS X, but there is Gimp so I suppose it's available. Porting to the native OS X gui instead will be a lot of work though. GNAT is available, versions 3.12 to 3.15 will all be fine. The OS calls are done via the portable GNAT libraries so all that will probably work straightaway. So Brian I'd say try installing GTK+ 1.2, GNAT and GtkAda 1.2.12 and I'll send you the code. See http://www.adapower.org http://gtkada.eu.org http://macgimp.org I don't know anything about MIDI on OS X, but it can do without. We should continue offlist now. Manuel

21 years, 7 months

[linux-audio-user] [ANN] Scala 2.06

by Manuel Op de Coul

The reason I announce this release of Scala, a program to explore musical tunings, is that the Linux version finally works with MIDI now. It uses the OSS devices, but I have only tested it with ALSA. If you want to use an ALSA softsynth, you can connect it via a virtual MIDI device. http://www.xs4all.nl/~huygensf/software/scala-20-pc-linux.tar.bz2 Scala is also very useful as a virtual keyboard, one that can be used with any tuning. After setting the device with Edit->Sound Settings, press F4, select a notation system, click "Scale preset" and play. There are several dialogs that can play, most in the Analyse menu. You might like to try the Tonality diamond, Triad player, Tone circle, etc. The View->List of Chords dialog can play any predefined chord. Any volunteers for porting Scala to OS X on this list? I hope ALSA will support the MIDI Tuning Standard for soundcard synthesizers sometime. Then we can have much better accuracy. Manuel

21 years, 7 months

[linux-audio-user] Capture with DIGI9636 Hammerfall Light and playback with PCI 128

by Martin Buechler

Hi, I am able to record using alsa/jackd/ardour with the analog input from an AEB/4-I and plain pcm.rme9652 after tweaking /etc/asound.state by hand for getting the internal input from the AEB working. jackd/ardour works also very well with the PCI 128 only, even at period size 64. Now, I want to record with the RME and having analog playback through the PCI 128. Is this possible? If yes, how to setup .asoundrc? I have been trying many combinations of multi and ttable settings, but honestly, I do not fully understand the syntax and semantics of alsa configurations. I am using kernel and alsa-0.9.0 from a recent PlanetCCRMA distribution, which is really a piece of gold. BTW, after fumbling around with my own kernel patching, I ended always with a complete freeze of ardour, when running jackd in realtime mode. Here is, what aplay says: [root@ardour root]# aplay -l card 0: AudioPCI [Ensoniq AudioPCI], device 0: ES1371/1 [ES1371 DAC2/ADC] Subdevices: 1/1 Subdevice #0: subdevice #0 card 0: AudioPCI [Ensoniq AudioPCI], device 1: ES1371/2 [ES1371 DAC1] Subdevices: 1/1 Subdevice #0: subdevice #0 card 1: 15 [RME Digi9636 (Rev 1.5)], device 0: RME Digi9636 (Rev 1.5) [RME Digi9636 (Rev 1.5)] Subdevices: 1/1 Subdevice #0: subdevice #0 [root@ardour root]# aplay -v -D hw:1,0 /usr/share/tuxracer/sounds/tux_on_rock1.wav Playing WAVE '/usr/share/tuxracer/sounds/tux_on_rock1.wav' : Signed 16 bit Little Endian, Rate 44100 Hz, Stereo aplay: set_params:789: Access type not available Pretty strange, since ardour does not complain, when trying to playback with the RME. Someone stated, that ardour ist writing directly to the hardware, and seems to have no problem, when there's nothing connected to the cards digital outputs. I also don't dare trying to understand, why there is one capture/playback device in /proc/card1/dev for the RME, while ardour reports 18. Since I do not want to purchase another AEB/4-O analog output box, I would really like to know, how I could use my cheapo SoundBlaster. Thanks for your help Martin

21 years, 7 months

[linux-audio-user] Fwd: pho: iTunes music sharing protocol

by iriXx

got this on pho list... might be useful to those of us developing software?.... best m~ -------- Original Message -------- Somebody's already figured out the protocol by which iTunes is able to share playlists between computers on a network. http://www.neowin.net/staff/timdorr/itunes/ Have fun, hackers. -- |\ _,,,---,,_ ZZZzz /,`.-'`' -. ;-;;,_ HTTP 503: Too Busy |,4- ) )-,_. ,\ ( `'-' '---''(_/--' `-'\_) fL .::. www.iriXx.org .::. www.copyleftmedia.org.uk .::. gnupg key ID: AEB7A31E -- |\ _,,,---,,_ ZZZzz /,`.-'`' -. ;-;;,_ HTTP 503: Too Busy |,4- ) )-,_. ,\ ( `'-' '---''(_/--' `-'\_) fL .::. www.iriXx.org .::. www.copyleftmedia.org.uk .::. gnupg key ID: AEB7A31E

21 years, 7 months

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Linux-audio-user May 2003