Hi,
[this is mostly addressed to Linux Audio friends from Germany's Southwest]
from November 15th-16th, 2009, the German Software&Support Media Group is
hosting the "OpenSourceExpo" in Karlsruhe, Germany. I am not exactly sure
yet about its target audience, but it appears like a "small brother" of the
LinuxTag with a more local attitude.
They offer free booth space, tables and wLan access for free software projects,
and I was thinking about applying for a booth there to show off some of the
current Linux Audio developments there, as we did when LinuxTag was still in
Karlsruhe (2002..2005 or so). That would mean setting up the booth with
computer, monitor, mixer, speakers, keyboard etc, and preparing some demo
material.
However, this task would need 1 or 2 more volunteers to man the booth during
that time (please note: This is on a Sunday+Monday!). If anyone is interested,
please get in contact with me off-list (or even here).
Find more information about the OpenSource Expo here:
http://www.pro-linux.de/news/2009/14664.html (german)
http://it-republik.de/konferenzen/opensourceexpo09/
Thanks for reading,
Frank
jens, i assume you meant this to go to the list?
Jens M Andreasen wrote:
> On Sun, 2009-09-27 at 14:53 +0200, Jörn Nettingsmeier wrote:
>> those who are following the development of the xiph CELT low latency
>> codec might find this presentation interesting:
>
>>From the overheads:
>
> - expf() is even slower than exp()
> Changes exception handling mode of FPU, even if it's
> already set correctly, then changes it "back"
>
> This is a showstopper for DAZ and friends. Can somebody explain to those
> in power, that this is a very unkind thing to do?
you could hop on irc.freenode.net, /join #celt, #theora, #speex and/or
#xiph and see if derf (the presenter in the link i posted) or jmspeex
(jean-marc valin, the remote end in the celt presentation) are around,
and discuss it with them directly. alternatively, maybe torben reads
this and picks up the thread?
those who are following the development of the xiph CELT low latency
codec might find this presentation interesting:
http://www.celt-codec.org/presentations/
torben has implemented CELT support in netjack1, and this video helped
me a lot in understanding how it actually works.
i thought perhaps that our resident ambisonics gurus/interested
parties should take a look at this.
--p
---------- Forwarded message ----------
From: e deleflie <edeleflie(a)gmail.com>
Date: Thu, Sep 17, 2009 at 8:21 PM
Subject: [Flac-dev] (Universal) Ambisonic implementation
To: flac-dev(a)xiph.org
Hi Flac Developers,
My name is Etienne Deleflie, I'm the founder of
http://www.ambisonia.com and, more recently, Â http://soundofspace.com.
Myself and the community I serve are looking for a lossless file
format that can encapsulate ambisonic encoding. To this end a
specification has been drafted, and is nearing stability, that
describes practical features designed to get the most out of
ambisonics.
That spec is accessible here:
http://ambisonics.googlegroups.com/web/Universal_Ambisonic_0.96.pdf
I'm wondering if the FLAC community might be interested in
implementing a lossless implementation of that spec. I know there are
some current incompatibilities. I'm also aware that there are certain
open source processes involved around implementing new features. I'd
be happy to get involved with those processes if someone expressed
interest at implementing these features.
regards,
Etienne
_______________________________________________
Flac-dev mailing list
Flac-dev(a)xiph.org
http://lists.xiph.org/mailman/listinfo/flac-dev
I was not a member of LAD when the "LV2 port groups" discussion was running
in August.
(First few lines from messages of Jörn Nettingsmeier and David Robillard,
below.)
Now I am 'on list' can I jsut check I have answered everyone's queries?
Regards,
Michael
(Basically using ambisonics.ch URLs as PSIs is no problem ..., MC.)
---------- Forwarded Message ----------
Subject: Re: [LAD] LV2 port groups
Date: Tue, 18 Aug 2009 07:53:54 -0000 (GMT)
From: "Michael Chapman" <chapman(a)mchapman.com>
To: Jörn Nettingsmeier <nettings(a)folkwang-hochschule.de>, dave(a)drobilla.net
Cc: "Linux Audio Developers" <linux-audio-dev(a)lists.linuxaudio.org>
On Sunday 16 August 2009 7:17 pm, Jörn Nettingsmeier wrote:
>Â michael, there are plans to implement the ACN/SN3D scheme in the LV2
>Â plugin standard.
>Â David Robillard wrote:
> > On Sun, 2009-08-16 at 19:22 +0200, Jörn Nettingsmeier wrote:
>Â >> David Robillard wrote:
> >>> On Sun, 2009-08-16 at 18:27 +0200, Jörn Nettingsmeier wrote:
>Â >>>> David Robillard wrote:
>Â >>>>> On Mon, 2009-08-10 at 11:02 -0400, David Robillard wrote:
>Â >>>>>> http://lv2plug.in/ns/dev/port-groups.lv2/port-groups.html
>Â >>>>>
>Â >>>>> P.S. Comments on this from anyone with experience in multi-channel
>Â >>>>> stuff would be appreciated if there's any problems.
>Â >>>>>
-------------------------------------------------------
It would be nice if someone could add the linuxaudio.org archives to
http://lad.linuxaudio.org/archive/lad.html. The Stanford archive might
be less good ;), but search engines prefer to link to lad.linuxaudio.org.
I gave someone on the 64 Studio list links to the Stanford archive and
was corrected, that there are some more actual LAD archives ;).
Cheers,
Ralf
Greetings,
I've been experimenting with MIDI control from one machine to another. I
checked the timing of a single note played simultanesouly by instances
of QSynth on both machines and was surprised to hear a very noticeable
flamming. I then replaced the MidiSport 2x2 with my Edirol UA25 and the
flamming disappeared. Both are USB interfaces, btw. MIDI routing between
the machines is handled by a Yamaha MJC8 and has never been problematic
with that box.
So, my question(s): Is the MidiSport just poorly designed and is there a
further condition or module option that can correct the timing delay
from that unit ?
Best,
dp
Hi,
On the LAU list we were discussing the possibilities of audio synthesis
environments as plugins.
" [LAU] From audio synthesis environment to plugin"
Pd, SC and Csound give so much possibilities when it comes to
instruments and effects. Wouldn't it be cool if Linux audio users could
easily use some code/patches as plugins? I imagine, someone makes a cool
synth 'patch' which you can easily use within a 'plugin interface'. So
without knowing how to code in SuperCollider for example, you can
benefit from patches of others, which you can easily use as plugin
(or 'jack application').
If there is such a 'plugin interface' and people start sharing
'plugins', this could make Linux more useful for Music Production. It
also could fill the gap of not having a lot commercial VST plugins for
Linux imho.
Of course I'm not the first with this idea and there are some solutions
or suggestions already. I'll try to give a list.... (of course I could
miss some options)
-------------
*Csound:*
CSoundLADSPA:
http://www.csounds.com/journal/issue6/csLADSPA.html
CSoundVST:
http://www.csounds.com/manual/html/CommandCsoundVST.html (Windows, but
also possible to build as native Linux plugin, recently).
-------------------
*Pd:*
http://www-crca.ucsd.edu/~jsarlo/pdvst/ (only Windows afaik)
-------------------
*
SuperCollider:*
SC comes with a SuperColliderAU.component (Mac only)
Here are some possibilities listed (Faust for example):
http://supercollider.sourceforge.net/wiki/index.php/Systems_interfacing_wit…
Java bindings -> http://www.erase.net/projects/p5_sc/ and jvst ->
http://jvstwrapper.sourceforge.net/
----------------------
So it seems that CSound already has an solution for GNU/Linux. But Pd
and SC only seems to have solutions for either Windows or Mac.
It would be great and good for Linux audio imho if we could use Pd and
SC patches as plugins on GNU/Linux. And to make them popular and have as
much sharing of plugins between users as possible, a crossplatform
solution might be the best bet.
I'm not a developer, so I can't tell how good my ideas and suggestions
are. I also don't know if I see clear when I see these opportunities.
That's why I mail it to this list, so experts can tell.
Maybe one or more developers likes the idea and also sees these
opportunities and are capable of setting plans and ideas into something
practical...
Thanks in advance,
\rooz
Rubber Band is an audio time-stretching and pitch-shifting library and
utility designed for musical applications. It allows you to change the
tempo and pitch of an audio recording independently of one another.
http://breakfastquay.com/rubberband/
This maintenance release contains a fix for a hang when faced with
some very peculiar stretch factors, and a fix for some incorrect
threading condition usage.
Chris