Linux-audio-user November 2005

linux-audio-user@lists.linuxaudio.org

147 participants
156 discussions

[linux-audio-user] Mixmeister-like software

by John Mulholland

Hello, I have been asked to put together a couple of CDs of funky music for my sisters house party. Before I discovered open source I used a program called (1) mixmeister for this sort of thing. I like MM because it has a fairly inuitive drag and drop interface, showed graphical waveforms for easy mixing, and it put quite an emphasis on BMP and cataloguing. I liked its light approach, and I dont really want to use a heavy DAW for this. Is there anything similar for Linux? Cheers, John (1) www.mixmeister.com

18 years, 5 months

Re: [linux-audio-user] IRQ conflicts, acpi, and linux audio

by Kjetil S. Matheussen

Lee Revell: > On Sun, 2005-11-20 at 02:28 +0000, Tim Blechmann wrote: >>> You won't get a lot of help from the open source community if you >>> insist on loading proprietary kernel modules. The FIRST thing you >>> should do if you're trying to optimize your system is don't load any >>> binary only kernel modules!!! >> >> well, better a working closed-source driver, than no driver at all.. > > The nvidia driver is only necessary for hardware accelerated 3D which > doesn't have much use on an audio box. > Hm? Does the free driver finanally work with built-in gfx on nforce boards? --

18 years, 5 months

[linux-audio-user] low latency ladspa rotary speaker

by Atte André Jensen

Hi I've tried out the TAP Rotary Speaker LADSPA plugin. Sounds quite nice, but it latency is too big for realtime performance, http://tap-plugins.sourceforge.net/ladspa/rotspeak.html lists it as 48ms which seems like what I feel when playing it. Is there other rotary speaker LADSPA plugins with lower latency around? Or is there a way to lower the latency of the TAP one? -- peace, love & harmony Atte http://www.atte.dk

18 years, 5 months

[linux-audio-user] recording AC-3

by Tony Lill

Has anyone managed to record an AC-3 audio stream from an nforce4 mobo? It's got a coax spdif in, and it claims to have two capture devices: Linux-x86_64-2.6.14 $ cat /proc/asound/cards 0 [CK804 ]: NFORCE - NVidia CK804 NVidia CK804 with ALC850 at 0xfebfd000, irq 16 Linux-x86_64-2.6.14 $ cat /proc/asound/devices 18: [0- 2]: digital audio playback 25: [0- 1]: digital audio capture 16: [0- 0]: digital audio playback 24: [0- 0]: digital audio capture 0: [0- 0]: ctl 33: : timer but using arecord -D hw:0,1 -f dat /dev/null gives an i/o error. 0,0 just gives silence, so I'm assuming that it's the mic in. This is with ALSA 1.0.8 and kernel 2.6.14 Is it even possible to do this? If not, has anyone done this with some other soundcard? On a somewhat related note, how do you use ecasignalview on these alsa devices (since you can't use a , in the filename). TIA -- Tony Lill, Tony.Lill(a)AJLC.Waterloo.ON.CA President, A. J. Lill Consultants fax/data (519) 650 3571 539 Grand Valley Dr., Cambridge, Ont. N3H 2S2 (519) 241 2461 --------------- http://www.ajlc.waterloo.on.ca/ ---------------- "Welcome to All Things UNIX, where if it's not UNIX, it's CRAP!"

18 years, 5 months

Re: [linux-audio-user] IRQ conflicts, acpi, and linux audio

by thewade

> Are you running straight fedora or ccrma? Fedora Core 4 with the standard 2.6.14.2 kernel with the LSM module. > If ccrma, I've read there's a package > called rtirq which seems to have something to do with re-prioritizing interrupts > (in software) though I don't know the details. I think you'd need to be running > the planet ccrma kernel (or equivalent) for it to work.. A (in no way) comprehensive search yields that rtirq is a patch, possibly only to the 2.4 kernel. I am going a different route: I would like to update my BIOS first and see if I get more control over the BIOS that way. As of now I have IDE control and the option to turn off three things and that is it. I THINK my motherboard chipset is SiS755 and I found the sis755MAX.bin file so that SHOULD work... On boot my BIOS ID# is 63-0100-000001-00101111-071504-SiS755-258KA000-Y2KC, and though I cannot find the exact match for that number there is the SiS755 portion which corresponds with the chipset and the host controller for my machine. Weither or not chipset and host controler are the same as motherboard - who knows... And to that end I have a question: My laptop has no floppy drive: is there a way to boot DOS from CD without any memory management drivers loaded so that I can flash my BIOS? I have looked into FreeDOS, and sent one of their developers an email, but just to cover my bases has anyone here solved such a problem before (and if so, how please)? If I cannot do this I might find where my modem is enabled or where drivers are built for it in the kernel and rebuild the kernel without thoes drivers. I may have been dreaming but I seem to remember a previous kernel running on this machine without having to disable acpi when the modem was not loaded. Thanks again for the help! Lee, we could put this despute to rest if you have a machine with that latency timer module Takashi Iwai (I think) wrote. You could run the kernel latency tests with shared IRQ's and without (somehow?) It seems to me like IRQ reordering could help but I have only one semester studying the x86 architecture under my belt. Anyway, if Intel and Microsoft cam up with something it has to be buggy, right? ;) -thewade

18 years, 5 months

[linux-audio-user] delta 44 con'd....getting rid of xruns??

by reuben

Hello, I couldn't get the card to work using straight ALSA output from xmms, but firing up Jack with qjackctl got everything working. However, I am getting xruns (/glitches) when I do things as simple as switching windows...the output from qjackctl follows at end. What config do I need to adjust? Thanks 08:04:22.067 Audio connection change. 08:04:22.092 Audio connection graph change. **** alsa_pcm: xrun of at least 13.902 msecs **** alsa_pcm: xrun of at least 8.296 msecs 08:04:24.080 XRUN callback (2 skipped). 08:04:25.310 Audio connection graph change. 08:04:25.490 Audio connection change. **** alsa_pcm: xrun of at least 3.672 msecs **** alsa_pcm: xrun of at least 12.041 msecs 08:05:36.487 XRUN callback (2 skipped). **** alsa_pcm: xrun of at least 13.674 msecs **** alsa_pcm: xrun of at least 0.926 msecs 08:05:38.501 XRUN callback (2 skipped). **** alsa_pcm: xrun of at least 4.533 msecs 08:05:44.537 XRUN callback (1 skipped). **** alsa_pcm: xrun of at least 0.432 msecs **** alsa_pcm: xrun of at least 0.636 msecs 08:05:50.581 XRUN callback (2 skipped). **** alsa_pcm: xrun of at least 3.746 msecs 08:05:52.615 XRUN callback (1 skipped).

18 years, 5 months

[linux-audio-user] Problems with Novation Speedio

by Peter Clarke

Hi all, I would like to use my Novation Speedio with Jack. The Speedio is a USB audio/MIDI interface - sounds like it's similar to the Edirol UA-25 recently discussed here. The MIDI side works fine, but I'm having problems with the audio. The sound is terrible, both on playback and record. The music plays too slowly, at too low pitch, and with lots of crackles. I've tried just about every combination of settings for Jack, but it hasn't helped. I've tried Rosegarden and XMMS - the sound is just the same. The Speedio hardware works fine with Win***s. I also have a cheap CM8738-based soundcard, and that works just fine with Jack. My system is Gentoo 2.6.13 on a Pentium 4 PC. I've just updated to Jack 0.100.0 (from the 0.99 currently 'approved' by Gentoo), but that didn't help. Kernel support for OSS is turned off. I have these modules loaded: snd_seq_midi; sis900 (for my Ethernet card); realtime; snd_usb_audio; snd_usb_lib; ohci_hcd; snd_cmipci (for my CMI8738 soundcard); snd_opl3_lib; snd_hwdep; snd_mpu401_uart; snd_rawmidi; ltserial, ltmodem (for my Winmodem). I'm guessing it's an issue with the snd-usb-audio driver. Any ideas? Could it be a conflict with aRts? Does anyone have the Speedio working properly on a Linux box? Peter Clarke

18 years, 5 months

[linux-audio-user] xfst (no sound)

by Brian Sturk

I managed to find xfst after not having much luck w/ jack_fst. I'm running a pretty recent version of wine under gentoo linux. xfst successfully launches every VST I've thrown at it so far and I even see what seems to be it kicking off a MIDI thread when routing MIDI from muse to it through jack. I believe I have everything setup correctly (although I am mostly likely doing something wrong) but I do not hear anything. Relevant info: Gentoo Linux 2.6.12 Built in sound card ALSA works fine Wine version wine-20050725-r1 Routing MIDI from muse to xfst running Crystal VST Routing audio out from Crystal VST to alsa_pcm outs Am I doing something incorrectly? I have tested jack etc by using zynaddsubfx. thanks, ~brian -- .--------------------------------------------------,--------. | Brian Sturk - http://users.adelphia.net/~bsturk \ C/C++ | .> )\,^a__ |-------------------------. bsturk<AT>adelphia.net | Python |( _ _)/ /-."~ | http://www.telengard.com `------------------------`-------| `( )_ )/ | Telengard Technologies Inc. - NT/*nix UI & device drivers |_<_s_<_s `-----------------------------------------------------------'

18 years, 5 months

[linux-audio-user] Jack rack server

by Wales

Hi Conrad If you find thhhis out could you let me know, this would be very powerful and great for teaching people sound/music composition Cheers Bob -- Bob - bearmusic - BluesLSD http://www.officialmp3.com/music/bands/92/

18 years, 5 months

[linux-audio-user] [ANN] QjackCtl 0.2.19 released!

by Rui Nuno Capela

Hi, QjackCtl 0.2.19 has been released. The Qt(cutie)-based GUI control panel for the JACK Audio Connection Kit service has come of age. You can grab it right away from the "official" home site: http://qjackctl.sourceforge.net Release notes as taken straight from the change-log: - Connections widget views are now properly refreshed after renaming client/ports (aliases). - Disabled system tray and ALSA sequencer support on configure time, whenever building for MacOSX as default. - Fixed the major issues with selecting an audio interface on Mac OSX; the button the right of the interface combo is now much better looking than it was before; input/output channel counts are also updated automatically now (thanks to Jesse Chappell for the patch). - Prevent the setting of the coreaudio device id on the jackd command line (-n) whenever the default interface is being selected. - The connections and patchbay windows are now allowed to have a wider connection lines frame panel; splitter width sizes are now persistent across application sessions (thanks to Filipe Tomás for the hint). - Activation toggling feedback on the patchbay widget has been fixed; additionally and as found convenient, the most recently used patchbay definitions can now be loaded immediately by selecting from a drop-down list widget, which replaces the old static patchbay name status text, and adds a lil'icon too :) - All widget captions changed to include proper application title prefix. - Attempt to bring those aging autoconf templates to date; sample SPEC file for RPM build is now being included and generated at configure time. - The current selected device is now shown with a checkmark on the device selection menu(s), while on the settings dialog. - Set to use QApplication::setMainWidget() instead of registering the traditional lastWindowClosed() signal to quit() slot, just to let the -geometry command line argument have some effect on X11. Enjoy, -- rncbc aka Rui Nuno Capela rncbc(a)rncbc.org

18 years, 5 months

← Newer
1
...
5
6
7
8
9
10
11
...
16
Older →

Jump to page:

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

Linux-audio-user November 2005