LAC 2012 - Slides: The why and how of with-height surround production in Ambisonics

2012·3.1 MB·English

by  Jörn Nettingsmeier

The Why and How of
With-Height Surround Sound
Jörn Nettingsmeier
<[email protected]>
freelance audio engineer
Essen, Germany
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 1
Your next 45 minutes on
the graveyard shift this lovely Saturday morning:
A bit of history
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How do we perceive elevated sound?
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Why include height at all?
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How do different methods (re-)produce height?
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A closer look at multichannel stereo techniques
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VBAP
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Ambisonics
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The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 2
A bit of History
German Pavillon World Expo 1970:
50 speakers in a sphere,
acoustically transparent grid floor.
(both images © Stockhausen
Foundation for Music)
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 3
A bit of History
Mostly discrete routing, a bit of
amplitude panning.
Lots of fun with acoustics.
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 4
A bit of History
François Bayle's Acousmonium (Radio France):
80 different speakers spread around, for live
diffusion of tape music (usually stereophonic).
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 5
A bit of History
François Bayle's Acousmonium (Radio France):
80 different speakers spread around, for live
diffusion of tape music (usually stereophonic).
The music is being diffused in
real-time, usually by the
composer, sitting at a mixing
desk designed for the purpose.
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 6
A bit of History
François Bayle's Acousmonium (Radio France):
80 different speakers spread around, for live
diffusion of tape music (usually stereophonic).
The music is being diffused in
real-time, usually by the
composer, sitting at a mixing
desk designed for the purpose.
Speakers are chosen for their
different characteristics.
Localisation is part of the
interpretation, but not
independent of speaker
positions.
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 7
A bit of History
François Bayle's Acousmonium (Radio France):
80 different speakers spread around, for live
diffusion of tape music (usually stereophonic).
The music is being diffused in
real-time, usually by the
composer, sitting at a mixing
desk designed for the purpose.
Speakers are chosen for their
different characteristics.
Localisation is part of the
interpretation, but not
independent of speaker
positions.
A modern-day successor is the
BEAST (Birmingham Electro-
Acoustic Sound Theatre).
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 8
A bit of History
Systems like these are not aiming
at a systematic, portable approach
to with-height surround.
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 9
A bit of History
Systems like these are not aiming
at a systematic, portable approach
to with-height surround.
They are part of the artwork, and
of the creative process.
The Why and How of With-Height Surround Sound - Jörn Nettingsmeier <[email protected]>
Linux Audio Conference 2012, CCRMA, Stanford University 10