Hi Luigi,
I'm sorry to say that I don'[t understand this patent at all since there are no mathematical
equations or even written descriptions of how your process works - in fact, unless the patent
download is missing some vital sections, all it seems to boil down to is "You put some loudspeakers
in an acoustically treated room then you feed them with signals that will make a listener at the
centre think they hear the sound and its reflections in the appropriate places" - but that's exactly
what any competent surround system would do whether Ambisonic, VBAP, 5.1, 22.2 or WFS. Indeed
looking figures 2 and 3, the fact that the subsets of speakers shown are all triads coupled with the
fact that the patent talks about "vector sums" seems to indicate that VBAP is your preferred method
- but that was published by Ville Pulkki well before the date of the patent (1997 was, I think, the
first formal publication in the JAES).
Dave
On 19/01/2011 17:04, Luigi Agostini wrote:
Hi J?rn,
the patent from which originates 3D-EST is available here:
http://www.wipo.int/pctdb/en/wo.jsp?IA=EP2002007622&DISPLAY=STATUS
The answer to your first question is yes, you can use almost any speaker layout,
but is always better to surround the audience and to realize two height levels
of speakers...
The system re-calculate all the positions and movements saved in the control
software
for the new setup of speakers, in real time, from one speaker to 64...
obviously you can't
surround an audience with one or two speakers :-)
Do not hesitate to contact me again if you have more questions,
ciao
Luigi
------------------------------
Message: 14
Date: Tue, 18 Jan 2011 16:19:13 +0100
From: J?rn Nettingsmeier <[email protected]>
Subject: Re: [Sursound] 3D audio event in Italy
To: [email protected]
Message-ID: <[email protected]>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
On 01/18/2011 11:32 AM, Luigi Agostini wrote:
A&G Soluzioni Digitali and FKL present 2011 National Assembly of the
Forum Klanglandschaft Italy
Saturday, January 22, Auditorium Cesare Chiti Institute of Musical
Studies Pietro Mascagni Via Galilei 40, Livorno
Program of the afternoon session, open to the public:
- Arrige Aures, Soundscape composition by Fabio Iaci in 3D-EST 24.0
- Inner Voices, Soundscape composition by Mario D'andreta in 3D-EST 24.0
- SIGNALI U GRADU (signals in the city), by Albert Mayr
- A Secret Life, by Brian Eno & David Byrne.
Comparison of three different mixes and following debate:
stereo version, 3D-EST 8.0 DTS HD Master Audio and 3D-EST 24.0.
is there some information on the web about 3D-EST 8.0 and 24.0?
i found some speaker layouts and marketing on the a&g website, but no
formal description. the http://3dest.isgreat.org/ site does give some
hints, but i'd like to know if it's a purely object-oriented approach or
if you can also integrate natural recordings.
is the system agnostic to speaker layouts? how does it degrade if, say,
a composer works for 24.0 and we have to play back in 5.0 or stereo?
--
J?rn Nettingsmeier
Lortzingstr. 11, 45128 Essen, Tel. +49 177 7937487
Meister f?r Veranstaltungstechnik (B?hne/Studio), Elektrofachkraft
Audio and event engineer - Ambisonic surround recordings
http://stackingdwarves.net
------------------------------
Luigi Agostini
Amm.re Unico
A&G Soluzioni Digitali
http://www.aegweb.it
http://www.linkedin.com/in/luigiagostini
http://www.lulu.com/luigiagostini
http://yoursoundscape.ning.com
http://myspace.com/luigiagostini
http://myspace.com/luigi_agostini
http://luigiagostini.myblog.it/
http://luigiagostini.blogspot.com/
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