Anyone here know:
1 - How I can measure the latency of a USB-audio device connected to PD via
ALSA?
2 - What the minimum latency of a USB-audio device is with Linux?
Thanks!
Matthew Polashek
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[Sorry for cross-posting. Feel free to forward around]
Florence, 29 July 2004
+++ AGNULA/DEMUDI 1.2.0-rc1 IS OUT
AGNULA/DeMuDi 1.2.0-rc1, the Debian-based GNU/Linux distribution for
audio/video, has been released.
+++
AGNULA/DeMuDi 1.2.0-rc1, the Debian-based GNU/Linux distribution for
audio/video, has been released.
This version is the first release candidate for the 1.2.0 , which
sports tighter integration with Debian, using the Sarge Debian
Installer and the CDD (Custom Debian Distributions) framework.
It's almost completed and quite usable.
Instructions on how to download and install it can be found here:
http://www.agnula.org/download/demudi/demudi_1_2_0_iso
and a list of frequently asked questions here:
http://www.agnula.org/download/demudi/1.2.0-beta-FAQ/
The available packages along with their versions can be checked here:
http://apt.agnula.org/demudi/indices/Available
Highlights:
o Installer
* new isolinux boot splash image
* setting non-zero default volume
* ejecting the cd after installation is completed
* removed unnecessary applications from the base system
* improved video card detection and configuration
* fixed X11 keymap configuration, now matches the console one
o New/updated applications
* alsa-tools 1.0.5
* solfege 2.0.4
* kernel-sources 2.4.25
* mozplugger 1.5.1
* ams 1.8.6
o Snapshot
* pushed the sarge snapshot forward (2004/07/14)
o Menus
* added entry for SuperCollider, QSynth
o Configuration
* easier network setup with etherconf
* fixed timidity configuration file
* added upgrade-demudi script for clean upgrades
Please report all bugs, requests, criticisms using our development
portal [0]. Instructions on how to report bugs and requests are
available here:
http://www.agnula.org/development/agnula_bugs_requests/
We hope you enjoy AGNULA/DeMuDi! For any information, do not hesitate
to contact us writing to:
<info(a)agnula.org>
And/or visiting our web site, http://www.agnula.org/.
+++
About AGNULA: Agnula (acronym for A GNU/Linux Audio distribution,
pronounced with a strong g) is the name of a project funded until
April 2004 by the European Commission (number of contract:
IST-2001-34879; key action IV.3.3, Free Software: towards the critical
mass). After the end of the funded period, AGNULA is continuing as a
volunteer based project, aiming to spread Libre Software in the
professional audio/video arena.
Best regards,
--
The AGNULA Team info(a)agnula.org
Our mailing lists: http://lists.agnula.org/
Our web site: http://www.agnula.org/
"There's no free expression without control on the tools you use"
[0] http://devel.agnula.org/
Sorry I am just getting back from vacation and going through mails.
> -----Original Message-----
> From: linux-audio-user-bounces(a)music.columbia.edu [mailto:linux-audio-
> user-bounces(a)music.columbia.edu] On Behalf Of Atte André Jensen
> Sent: Saturday, July 24, 2004 12:20 AM
> Subject: Re: [linux-audio-user] live music with linux
>
> Florin Andrei wrote:
>
> > slocate is always among the first packages i remove after installing a
> > system. Have no use for it, and it is very annoying.
>
> (S)locate is extremely handy. Let's you search your entire system in
> notime. Maybe you should just disable the cronjob that is set up by the
> installer.
I would second this. Of course get rid of it running automatically (I think fedora core 1 has it set up to run at least once a day). I run it everynow and then by hand (updatedb). When you have 100's of gigs of harddrive filled with stuff locate is way more speedy than find. (if its up to date)
_________________________________________________
Scanned on 28 Jul 2004 19:13:36
Scanning by http://erado.com
Oh, so if I ewere to set it to 1 would I do:
modprob snd-usb-audio nrpacks=$F1 ?
also, will I need to remove the module before installing it again?
Matthew
> ----------
> From: Lee Revell
> Reply To: A list for linux audio users
> Sent: Wednesday, July 28, 2004 2:39 PM
> To: A list for linux audio users
> Subject: RE: [linux-audio-user] USB-Audio latency
>
> On Wed, 2004-07-28 at 13:15, Polashek, Matthew wrote:
> > Ok.. that could be fun to try.
> >
> > Could anyone point me to a howto that explains how to implement this?
> >
>
> I think you just want to do:
>
> modprobe snd-usb-audio nrpacks=$FOO
>
> Lee
>
>
>
>
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Excellent! Thanks!
Matthew Polashek
> ----------
> From: Lee Revell
> Reply To: A list for linux audio users
> Sent: Wednesday, July 28, 2004 2:39 PM
> To: A list for linux audio users
> Subject: RE: [linux-audio-user] USB-Audio latency
>
> On Wed, 2004-07-28 at 13:15, Polashek, Matthew wrote:
> > Ok.. that could be fun to try.
> >
> > Could anyone point me to a howto that explains how to implement this?
> >
>
> I think you just want to do:
>
> modprobe snd-usb-audio nrpacks=$FOO
>
> Lee
>
>
>
>
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Ok.. that could be fun to try.
Could anyone point me to a howto that explains how to implement this?
Matthew
> ----------
> From: Clemens Ladisch
> Reply To: A list for linux audio users
> Sent: Wednesday, July 28, 2004 12:52 PM
> To: A list for linux audio users
> Subject: Re: [linux-audio-user] USB-Audio latency
>
> Polashek, Matthew wrote:
> > 2 - What the minimum latency of a USB-audio device is with Linux?
>
> I guess around 10 ms with default settings.
>
> The snd-usb-audio module has an undocumented parameter "nrpacks"
> which is equivalent to the number of milliseconds between USB
> interrupts. The default value is 4. You can try setting it to lower
> values; the minimum is 1.
>
>
> HTH
> Clemens
>
>
>
>
>
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Maybe this is old news that I missed, but it looks like RME is doing it
right. 56 channel unit. 24-bit, 192KHz, 4 mic pre's, 2 ADAT, S800 1394b
with 1394 hub.
http://www.rme-audio.com/english/firewire/ff800.htm
This would make a really nice using for someone to build a remote
recording around.
Too bad that there isn't more going on with 1394-based audio under
Linux. This unit and Ardour would be fun...
- Mark
Hi folks,
I've got a little problem here:
This weekend I used my laptop to record two live-events. Everything went fine
using Jack and timemachine.
Except: Timmachine crashed on the second recording after reaching a filesize
of 2GB. I once thought timemachine did use a fileformat which isn't bound to
the maximumsize of 2GB of the standard-wave-files...
My second thought is, that my kernel doesn't support files above 2GB so I was
looking through my config for an option related to filesize, but didn't find
one.
Am I missing a config-option or am I using the wrong format/application?
Any hints welcome...
Arnold
--
Get my public-key from pgp.mit.edu or pgp.uni-mainz.de
---
Hi, I am a .signature virus. Please copy me into your ~/.signature and send me
to all your contacts.
After a month or so log in as root and do a rm / -rf. Or ask your
administrator to do so...
Hi,
in order to make a project of music education
I need to find some audio files of natural or mechanical sounds,
noises, animals, musical instruments etc.
Please,
if you know some free sounds libs on-line, post a link
Thanks
--
Lazzaro
