12 Nov
2004
12 Nov
'04
5:25 a.m.
I am working on what is called "distributed multimedia interaction", one
purpose of which is to investigate possibilities for ensemble playing
by remote parties, distributing the audio over IP networks.
A crucial point is to achieve audio transmission with very low latency.
If anyone could provide me with information on, or pointers to,
open-source software for doing this, I would be grateful. (I have
started to roll my own, but I can hardly defend duplicating work
unnecessarily.)
Other comments are of course also appreciated.
With kind regards
Asbjørn Sæbø
--
Asbjørn Sæbø, post.doc.
Centre for Quantifiable Quality of Service in Communication Systems
Norwegian University of Science and Technology
<URL: http://www.q2s.ntnu.no/ >
12 Nov
12 Nov
5:56 a.m.
On Fri, 12 Nov 2004 22:25, Asbjørn Sæbø wrote:
I am working on what is called "distributed
multimedia interaction",
one purpose of which is to investigate possibilities for ensemble
playing by remote parties, distributing the audio over IP networks.
Nice! I'm working on creating music on the Net :-)
A crucial point is to achieve audio transmission with
very low latency.
If anyone could provide me with information on, or pointers to,
open-source software for doing this, I would be grateful. (I have
started to roll my own, but I can hardly defend duplicating work
unnecessarily.)
Soundmesh might do a bit what you want.
http://meowing.ccm.uc.edu/~ico/index2nf.html or
http://meowing.ccm.uc.edu/%7Emara/soundmesh/
Other comments are of course also appreciated.
Please keep me (and/or the list)
updated on your progress, I'm very
interested on a cooperation.
Cheers,
Niklas
--
Computer Music PhD-student
University of Waikato
Hamilton
New Zealand
9:15 a.m.
On Fri, Nov 12, 2004 at 10:55:32PM +1300, Niklas wrote:
On Fri, 12 Nov 2004 22:25, Asbjørn Sæbø wrote:
[...]
> A crucial point is to achieve audio transmission with very low latency.
> If anyone could provide me with information on, or pointers to,
> open-source software for doing this, I would be grateful. [...]
Soundmesh might do a bit what you want.
http://meowing.ccm.uc.edu/~ico/index2nf.html or
http://meowing.ccm.uc.edu/%7Emara/soundmesh/
Thanks, I will look into that.
Please keep me (and/or the list) updated on your
progress, I'm very
interested on a cooperation.
Noted. I'll just have to do some progress first ;-)
The current version is _very_ basic. I have however acheived a latency
of 12ms end to end (analog to analog), of which 8.7ms are due to to the
buffer of the sound card. So one of the next things is to try on a
better sound card.
(By the way, a back-of-the-envelope calculation gives me that the
absolute minimum latency physically possible is about 67ms (one way)
between two antpodes of the earth. And New Zealand is about antipodal
to Norway. The ping time to NZ was 330ms (two-way) some day I checked
it.)
Asbjørn
6:07 a.m.
Hi,
Friday, November 12, 2004, 10:25:29 AM, you wrote:
AS> I am working on what is called "distributed multimedia interaction", one
AS> purpose of which is to investigate possibilities for ensemble playing
AS> by remote parties, distributing the audio over IP networks.
AS> A crucial point is to achieve audio transmission with very low latency.
AS> If anyone could provide me with information on, or pointers to,
AS> open-source software for doing this, I would be grateful. (I have
AS> started to roll my own, but I can hardly defend duplicating work
AS> unnecessarily.)
I know that McGill University has done some work on this kind of
stuff, at their Music Technology department. Maybe you can find
something on their website.
I would be very interested in any open source development in this
direction!
sincerely,
Marije Baalman
9:20 a.m.
On Fri, Nov 12, 2004 at 11:07:14AM +0100, Marije Baalman wrote:
AS> A crucial point is to achieve audio
transmission with very low latency.
AS> If anyone could provide me with information on, or pointers to,
AS> open-source software for doing this, I would be grateful. [...]
I know that McGill University has done some work on
this kind of
stuff, at their Music Technology department. Maybe you can find
something on their website.
Thanks, I will look into that.
I would be very interested in any open source
development in this
direction!
May I ask what your interests are? Are you working at related things?
Asbjørn
3:30 p.m.
On Fri, 2004-11-12 at 01:25, Asbjørn Sæbø wrote:
I am working on what is called "distributed
multimedia interaction", one
purpose of which is to investigate possibilities for ensemble playing
by remote parties, distributing the audio over IP networks.
A crucial point is to achieve audio transmission with very low latency.
If anyone could provide me with information on, or pointers to,
open-source software for doing this, I would be grateful. (I have
started to roll my own, but I can hardly defend duplicating work
unnecessarily.)
Other comments are of course also appreciated.
See: http://ccrma.stanford.edu/groups/soundwire/
I see this has not been updated in a while, but Chris Chafe is actively
working on the project, see a recent event (AES demo) here:
http://ccrma.stanford.edu/~cc/soundwire/aes04/demo.html
Or more stuff in Chris's page at:
http://ccrma.stanford.edu/~cc
-- Fernando
8:09 p.m.
On Fri, November 12, 2004 8:30 pm, Fernando Pablo Lopez-Lezcano said:
On Fri, 2004-11-12 at 01:25, Asbjørn Sæbø wrote:
> I am working on what is called "distributed multimedia interaction", one
> purpose of which is to investigate possibilities for ensemble playing
See: http://ccrma.stanford.edu/groups/soundwire/
I see this has not been updated in a while, but Chris Chafe is actively
working on the project, see a recent event (AES demo) here:
... which reminds me of my promise to chris to build an autostuff thing around the
streambd program, which was used at least for the banff-stanford piano duo. AFAIK
it doesn't have sample clock correction but may be will have it in the future.
shame on me, it's on my todo list and gaining priority from day to day.
bests,
martin
6:30 p.m.
Check out MAS
http://www.mediaapplicationserver.net/
Jan
On Fri, 2004-11-12 at 03:25, Asbjørn Sæbø wrote:
I am working on what is called "distributed
multimedia interaction", one
purpose of which is to investigate possibilities for ensemble playing
by remote parties, distributing the audio over IP networks.
A crucial point is to achieve audio transmission with very low latency.
If anyone could provide me with information on, or pointers to,
open-source software for doing this, I would be grateful. (I have
started to roll my own, but I can hardly defend duplicating work
unnecessarily.)
Other comments are of course also appreciated.
With kind regards
Asbjørn Sæbø
7266
days inactive
7266
days old
linux-audio-dev@lists.linuxaudio.org
7 comments
6 participants
participants (6)
-
asbjs＠stud.ntnu.no -
Fernando Pablo Lopez-Lezcano -
Jan Depner -
Marije Baalman -
martin rumori -
Niklas