Linux-audio-user December 2004

linux-audio-user@lists.linuxaudio.org

186 participants
209 discussions

[linux-audio-user] Quicktoots release number 14

by Patrick Shirkey

We are pleased to announce Quicktoots release number 14. http://www.djcj.org/LAU/quicktoots ---------------------------------- Elcheapo multichannel I/O How to combine consumer grade devices into one written by Timo Sivula. So your too cheap/poor to afford the latest and greatest professional audio card? Maybe you just like to break stuff? Relax.... All you need are a few tools, some spare time and good hand/eye co-ordination. Why spend hundreds when you can spend less than a hundred? This toot explains to combine 2 or more consumer grade soundcards of the same model to be used as one single virtual multichannel soundcard for multichannel recording in Linux. ----------------------------------- The purpose of the Quicktoots are to provide a community resource of informative guides for using Linux audio applications. The Quicktoots are the brainchild of Dave Phillips the man responsible for the most comprehensive webpage devoted to Linux audio applications. The Linux Sound and Midi page. Your one stop resource for Linux sound software. http://www.linux-sound.org If you are in the position to link to any of the quicktoots please link to the main page. That way we can keep more accurate statistics on the amount of people viewing the pages. If you are interested in contributing to the Quicktoots please let us know. All work must be submitted to either Dave or myself and we will give advice or make changes to ensure our publishing standard is met. If you are not able to send html don't worry because I am willing to format any braindumps. Enjoy. -- Patrick Shirkey - Boost Hardware Ltd. Http://www.boosthardware.com Http://www.djcj.org/ - The Linux Audio Users guide Http://www.djcj.org/gigs - Gigs Guide Korea ======================================== Being on stage with the band in front of crowds shouting, "Get off! No! We want normal music!", I think that was more like acting than anything I've ever done. Goldie, 8 Nov, 2002 The Scotsman

20 years

Re: [linux-audio-user] 2.6.10

by thewade

> Just to verify it\'s not some weird hardware issue, did you ever try a 32 > bit kernel with Ingo\'s patches on that machine? No. I didn\'t know you could force a kernel to build as a different architecture. It doesn\'t sound like a fun way to test, isint there another way to see if there is a hardware issue? I\'d really like to use my machine to the fullest, otherwise I could just install 32-bit winblows XP... -thewade

20 years

[linux-audio-user] 2.6.10

by thewade

I am running 2.6.10-rc2-mm1 and I still get a surge of XRUNS about 10-20 min after starting jackd, even with the no acpi and no apm flags passed to the kernel. Im hoping that Ingo\'s patch that will eventually build on AMD64 will fix this. -thewade

20 years

[linux-audio-user] Athlon 64?

by thewade

Hey spencer, I am using an AMD64 laptop for audio work and I have to say its a lot of work and waiting to get things to work correctly right now. There really isint any cool advantages for audio yet but the hyperthreads in the FX chipset may make things run a little faster for doing audio/video stuff. Im not sure. The only thing I am sure of is that I am not running a realtime-preemptable kernel nor is the audio software that I use work compleately (PD), all because of 64-bit woes. Im still waiting... But then again its people like us that make the industry change, and I think there is a lot you COULD do with 64-bits, it just isint implemented in the processor yet. There isint any real reason for the PC industry not to eventually move to 64-bits except for conservitive beliefs that its not needed. -thewade

20 years

Re: [linux-audio-user] MIDI confusion

by Robert Jonsson

Hi, > On Sun, 2004-12-26 at 12:30 -0500, Joe Hartley wrote: > > Programs default to the first MIDI device, which is on the Audiophile, > > and not all programs will easily allow one to change the input device. > > Which programs are these, other than ZynAddSubFX? That's a bad bug, > that would render such programs unusuable to a professional. And > there's no excuse for it, it should be trivial to add support for > selecting the MIDI device to use. I beg to differ. Selecting the input device is seldom interesting to do from the softsynth. The routing is primarily done by the host program or a specifically crafted routing app, like qjackctl or kaconnect. Infact, when using lots of softsynths from a sequencer it is a nouisance when the softsynth has made a default connection to the input device. In my opinion, they should just register themselves (most have this as an option). The only case where you want the synth to directly connect itself to another device is when you are doing realtime playback from an external keyboard and not using any other stuff, more or less a special case. /Robert > > Please report this bug to the author(s) of said program(s). > > Lee >

20 years

[linux-audio-user] Re: ANN: El-cheapo-howto

by Timo Sivula

> From: tim hall <tech(a)glastonburymusic.org.uk> > > http://www.geocities.com/dn_liitto/english/El-cheapo-howto > LAUdotted with hours of the announcement! First suggestion - put it up on a > server that can handle more than one person looking at it at a time. ;-] > I'll read it later then. You are already the second person complaining about the unavailability of service at Geocities. Do you have any ideas where I could but the document that would be better and have a limited amount of banners ad pop-ups? Timo

20 years

[linux-audio-user] Re: different sound cards drift problem with spdif

by Timo Sivula

> From: Lee Revell <rlrevell(a)joe-job.com> > > Maybe it's because of drift (of ~3hz) of the two card spdif clock. How can > > I make the two card sync'ed? > > > > You can't. This is an FAQ. May I suggest a different answer to this problem ;-) Check the "ANN: El-cheapo-howto" thread on this same list. br, Timo

20 years

[linux-audio-user] Re: ANN: El-cheapo-howto

by Timo Sivula

Kjetil, > From: Kjetil Svalastog Matheussen <k.s.matheussen(a)notam02.no> > Quick "wget -r" mirror: > http://www.notam02.no/temp/www.geocities.com/dn_liitto/english/El-cheapo-ho… thanks a million for this! I was already getting a bit desperate with the pop-up-banner sites I was reviewing to find a better place for the El-cheapo-howto. Timo

20 years

[linux-audio-user] MIDI confusion

by Joe Hartley

I've run into a problem with my son's setup. He's got a system running Fedora Core 1, with the Planet CCRMA 2.4.26-ll kernel and an M-Audio Audiophile 2496, and for Christmas, I got him an M-Audio Radium 61 MIDI keyboard. I've gotten past the firmware loading and USB MIDI configuration. My problem is that if I use a program that allows me to choose the interface, such as pd, I can see the MIDI signals come in when I use MIDI interface #2. When I use a program with no obvious way of choosing the MIDI interface to use, such as ZynAddSubFX, I don't get any input from the Radium. What I need to do here is disable the MIDI portion of the Audiophile, so that Linux sees it strictly as a sound card, and sees the Radium as the only MIDI device. This is where I am in over my head, as I've done precious little with MIDI under Linux. All pointers greatly appreciated! -- ====================================================================== Joe Hartley - UNIX/network Consultant - jh(a)brainiac.com Without deviation from the norm, "progress" is not possible. - FZappa

20 years

[linux-audio-user] different sound cards drift problem with spdif

by Stefano Cavallari

I have two audio cards: (integrated) 00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50) using driver: snd_via82xx (PCI) 00:0c.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07) using driver: snd_emu10k1 I connected the two with a spdif connector because the internal one seems to have a better ADC than emu10k1 (Sblive external Digital Out jack to Internal Spdif IN) When I play any file on the sblive, and ONLY if I listen it on the other card, I hear a click every 3 seconds. If I listen to the file directly from sblice line out it's OK. Maybe it's because of drift (of ~3hz) of the two card spdif clock. How can I make the two card sync'ed?

20 years

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Linux-audio-user December 2004