Ladies and Gentlemen,
FYI:
http://www.content-technology.com/standards/
By philsandberg <http://www.content-technology.com/standards/?author=1>
on Oct 26, 2012 in MPEG
<http://www.content-technology.com/standards/?cat=6> | Comments Off
At the 102nd MPEG meeting held in Shanghai, China, MPEG has issued a
Draft Call for Proposals (CfP) on 3D Audio Coding. MPEG-H 3D Audio is
envisaged to complement the highly immersive experience provided by
MPEG-H HEVC. Such an immersive listening experience will be realised
by the rendering of a realistic and compelling 3D audio scene, either
by using a large number of loudspeakers, such as for 22.2 channel
audio programs, or by using binauralisation for headphone listening.
Key issues to be addressed are, a compact and bit-efficient
representation of multi-channel audio programs with the ability to
scale up to transparent quality and the flexible rendering of an audio
program to an arbitrary number of loudspeakers for arbitrary
configurations. 3D Audio support via headphones is a key capability in
order to deliver an immersive experience for users of mobile devices.
A final CfP will be issued at the 103rd meeting in January 2012,
(should of course be "January 2013", the next meeting...)
with selection of technology from amongst the responses received at
the 105th meeting in July 2013. This technology will form the basis
for MPEG-H 3D Audio, the Audio part (Part 3) of the MPEG-H (ISO/IEC
23008) suite of technologies.
Next MPEG meetings:
http://mpeg.chiariglione.org/meetings.php
Some personal remarks:
- Ambisonics has been a 3D audio technology since the very beginning. I
think some form should and will be included.
- Convincing playback of surround/ 3D audio files via headphones would
be an essential condition to have any meaningful impact in the typical
CE and "personal" markets, at least in the beginning. (The necessary
technologies already exist.)
- Such ("to be defined") headphone technologies/definitions
/specifications could also be applied for (more convincing) playback of
5.1 surround files via headphones. Maybe you could also improve the
playback of POSFs ("plain old stereo files", of course :-) ).
(Elimination of in-head effects etc.)
- The current demand for 3D Audio comes from the film industry. (The
music and audio CE industry have been resting in a dormant state of
mind. I try to be polite ...)
However, here seems to be a lot of support from the Telecommunications
and IT industries.
- This time it might be different...
Best,
Stefan Schreiber
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