Re: [linux-audio-dev] Another stupid question: Linux MIDI Interfaces
On Tue, 8 Jan 2002 19:51:59 -0500 Ivica Bukvic [EMAIL PROTECTED] wrote: There are already several supported USB external MIDI interfaces whose driver can be found here: http://member.nifty.ne.jp/Breeze/softwares/unix/usbmidi-e.html I have read about this somewhere a while ago and then also posted it on this list wondering whether any of these worked well and whether anyone had problems with any of the supported devices and/or driver. Due to fact that I am yet to find out more about this one, I have no clue how well they work in comparison with the serial-port devices (but if the driver proves to be stable, my assumption is that it should be far better than the serial port counterpart). I'm about to find out how well they work as soon as I get a couple of spare hours to play with it. SHould be sometime near Xmas ;-). Erik -- +---+ Erik de Castro Lopo [EMAIL PROTECTED] (Yes it's valid) +---+ The X-files is too optimistic. The truth is not out there. -- Anthony Ord
RE: [linux-audio-dev] Another stupid question: Linux MIDI Interfaces
-Original Message- From: DAVID G MATTHEWS [mailto:[EMAIL PROTECTED]] Sent: Dienstag, 8. Januar 2002 19:33 To: [EMAIL PROTECTED] Subject: Re: [linux-audio-dev] Another stupid question: Linux MIDI Interfaces I don't know about their Midi interfaces, but Midiman/M-Audio have certainly been Linux-positive w.r.t their audio cards. (The package my Delta 1010 came in even advertised Linux compatibility, complete with a little penuguin graphic under the list of supported platforms.) I'd imagine that they could be persuaded to release specs for their midi interfaces if they haven't already done so. (Has anyone asked?) I've send an e-mail to midiman germany with that question. That was yesterday afternoon and until now I get no answer, but I'll forward it to the linux-audio-dev list when I get it. Regards Joachim
RE: [linux-audio-dev] FW: Got an answer from Midiman Germany
So it seems that Midiman is as linux friendly as thought. I meant So it seems that Midiman is NOT as linux friendly as thought..
[linux-audio-dev] need setup recommendations for realtime audio on linux box
Hi, I'd like to try to setup some 3channel,low-latency audio beamforming experiments on my linux box with: mandrake 8.1 kernel-2.4.8 audio card midiman delta1010 I've been lurking and surfing, but I could really use some uptodate info as far as. 1) what type of latency I can expect from the base configuration, no kernel patching! 1a)If latency 3ms I'll need to do kernel patch. Are there patches for 2.4.8 ? who/where would I go? 2) which audio drivers are preferable, OSS installed properly, and works with ecasound. Is there any advantage to alsa- aside from the fact that BRUTEFIR assumes its use;-). 3) with Fcpu=400e6 and Fsample=48e3,I get 8333.33 clock ticks per audio sample. MMX should give a factor of 2 improvement, no? Perhaps the easiest means to grind about 3 channels of 4Ktaps each is to buy a 1G pentium? 4) anyone have any experience with BRUTEFIR? Thanks, - Ira Ekhaus [EMAIL PROTECTED] http://www.synapcorp.com Synap Corporation phone:781 641 3295 71 Glenburn Rd fax :781 623 5533 Arlington, MA 02476
RE: [linux-audio-dev] FW: Got an answer from Midiman Germany
On Wed, 9 Jan 2002, Tim Goetze wrote: we had a similar story to this one on alsa-dev a few months ago when the ice1712 driver turned out to fail with the audiophile 24/96, and m-man (the us headquarter that time) refused to release any information to anyone except Jaroslav from ALSA, but he'll probably be drowning in work right now with the kernel merge; and afaik he must not distribute whatever information m-man provide him with, which is a pity indeed. Huh. I'm the one who initiated contact with midiman-us and ic ensemble, and i can't recall any such restriction. Just because midiman-germany are boneheads doesn't mean midiman-us is. AFAIK Audiophile 24/96 works fine, but you need to use envy24control, not amixer. -Dan -- [-] Omae no subete no kichi wa ore no mono da. [-]
[linux-audio-dev] ossmixer latency =1.4msecs
Hi, using a mandrake 8.1 kernel-2.4.8 audio card midiman delta1010 and running the ossmixer utility with the oss drivers, I watched the I/O latency on a scope. It was about 1.4 msecs. is there something about ossmixer that bypasses the latency deal by putting the codecs in a loop back mode? thanks, Ira Ekhaus [EMAIL PROTECTED]
RE: [linux-audio-dev] need setup recommendations for realtime audio on linux box
-Original Message- From: Paul Davis [mailto:[EMAIL PROTECTED]] ... than 100ms requires a kernel patch. i don't know why you'd want to use 2.4.8 - the VM system is fundamentally broken until about 2.4.15 or definitely, I had quite a few problems with IIRC 2.4.5/9/10, now I am at 2.4.14 and it works much better (haven't seen any problems). erik
