Le Vend. 25 Fév 2011 à 11:29:26 +0800,
Junfeng Li a écrit :
> I am starting to research on 3D audio reproduction using two/three
> loudspeakers.
> therefore, I began with build up a real-time 3D sound reproduction
> system with two loudspeakers, based on binaural technique (HRTF,
> BRIR, etc.). B
PS Good and maybe even true story about summing series
Supposedly someone asked J von Neumann about the following
problem
Suppose two trains start out from two stations that are 200 hundred miles
apart. The trains are going 20 miles per hour and 30 miles per hour.
A (speedy) bird leaves the fron
While this description is true in principle, about recursion, in practice
no one really adds up as one goes along the geometric series arising!
(This is like summing a series in closed form-always doable in the
general situation involved here).
A single "kernel" is computed --what to put into e
On 2/18/11, Martin Leese wrote:
> There is an Audio+Design B-Format Converter
> and UHJ Transcoder on eBay:
Now there is the Audio+Design Pan Rotate Unit:
http://cgi.ebay.ca/ws/eBayISAPI.dll?ViewItem&item=200579914772
I still have no connection with the seller.
Regards,
Martin
--
Martin J Lee
Hello,
Thanks a lot for so valuable comments and active discussions.
While, possibly I did not give a clear explanation of my problem before.
therefore, I would like to show the problem again more clearly.
I am starting to research on 3D audio reproduction using two/three
loudspeakers.
therefore
It is similar: The Carver C-9 is cancelling one occurence of cross-talk by
mixing in to each channel a delayed inverted copy of the other channel,
while the RACE algorithm cancels the following cross-talk occurences
recursively because the mixed delayed inverted signals must also be
cancelled..
I think this idea was invented by Christian Huygens and
Young and Fresnel. Once one knows that sound is a wave phenomenon,
there is nothing left to invent--except the details of how the sound
goes around the head. Practical implementation especially in the analogue
world is another story!
Robert
In detail, I think, yes it is different.
It is designed for a certain angle and distance
which are different at least from RGs stereo dipole
where the speakers are close together in front of the listener.
But I do not see any reason why the whole thing could
not be easily programmed up. After all
This is getting off topic, but in helping my advisor prepare an
invited talk a few months ago I found that the idea of cross-talk
canceling was invented by Manfred Schroeder and Bishnu Atal in the
60's at Bell Labs: http://www.freepatentsonline.com/3236949.html
They should have waited 40 years to
Is it so different from Ralph Glasgal's ambiophonic cross-talk cancelling?
Dr Peter Lennox
School of Technology,
Faculty of Arts, design and Technology
University of Derby, UK
e: p.len...@derby.ac.uk
t: 01332 593155
w: http://sparg.derby.ac.uk/SPARG/Staff_PLX.asp
_
I have a Carver C-9 Sonic Hologram unit that I bought on Ebay for about
$80. It's a nice little demo piece, but limited in its application.
That said, it's biggest problem is noise. Of course it's all analogue
and built around -10 dbm levels. And all those capacitors are now very
old.
Has this s
part --
An HTML attachment was scrubbed...
URL:<https://mail.music.vt.edu/mailman/private/sursound/attachments/20110224/12e28f66/attachment.html>
___
Sursound mailing list
Sursound@music.vt.edu
https://mail.music.vt.edu/mailman/listin
I suppose that someone ought to mention-so I shall--
the Carver Sonic Hologram.
You can still find the devices around(they were
crosstalk cancellation processors).
They work really well, if you do not
mind sitting really still in one spot
(which of course you are going to have
to do for any such s
Le 11-02-24 09:54, Svein Berge a écrit :
>There is of course Harpex. Excuse me for plugging the plugin, I'm just
>answering questions here... It can convert from B-format to stereo,
>binaural, surround, 3D surround and more.
I can vouch for the quality of the Harpex-B decoder: it is very good. It
ion to all you.
>
> Best regards,
> Junfeng
> -- next part --
> An HTML attachment was scrubbed...
> URL:
> <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110224/12e28f66/attachment.html>
>
t --
An HTML attachment was scrubbed...
URL: <https://mail.music.vt.edu/mailman/private/sursound/attachments/20110224/a83dd4e3/attachment.html
>
___
Sursound mailing list
Sursound@mus
hi junfeng,
On 02/24/2011 09:11 AM, Junfeng Li wrote:
Hello, all friends,
Is anyone working on binaural sound reproduction using loudspeakers?
To reproduce 3D sound using loudspeaker, cross-talk cancellation is needed,
as I know.
>
Does anyone know which the most-advanced cross-talk cancellat
(source code) of binaural reproduction
using loudspeaker, which can share with me?
Great appreciation to all you.
Best regards,
Junfeng
-- next part --
An HTML attachment was scrubbed...
URL:
<https://mail.music.vt.edu/mailman/private/sursound/attachments/20110224/12e28
18 matches
Mail list logo
