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Auditory immersion and spatial impression in multichannel audio reproduction can be altered by changing the number of loudspeakers and independent reverberation channels. The spatial impression can change drastically as one moves away from the sweet-spot. Since multichannel audio reproduction is not limited to one position, it is critical to investigate Listener Envelopment (LEV) and immersion at off-axis positions. This work discusses the impression of spatially distributed decorrelated reverberation at on- and off-axis positions. Laboratory environment is used to reproduce a diffused sound field in the horizontal plane through 128 independent audio channels and loudspeakers. Results from psychoacoustical experiments show that there are perceptible differences even at higher channel counts. However, spatial impression does not change significantly beyond 16 channels of decorrelated reverberation and equally spaced loudspeakers at on- and off-axis positions.
Author (s): Agrawal, Sarvesh; Braasch, Jonas
Affiliation:
Rensselear Polytechnic Institute, Troy, NY, USA
(See document for exact affiliation information.)
AES Convention: 145
Paper Number:10076
Publication Date:
2018-10-06
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Session subject:
Spatial Audio-Part 1
Permalink: https://aes2.org/publications/elibrary-page/?id=19802
(1178KB)
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Agrawal, Sarvesh; Braasch, Jonas; 2018; Impression of Spatially Distributed Reverberation in Multichannel Audio Reproduction [PDF]; Rensselear Polytechnic Institute, Troy, NY, USA; Paper 10076; Available from: https://aes2.org/publications/elibrary-page/?id=19802
Agrawal, Sarvesh; Braasch, Jonas; Impression of Spatially Distributed Reverberation in Multichannel Audio Reproduction [PDF]; Rensselear Polytechnic Institute, Troy, NY, USA; Paper 10076; 2018 Available: https://aes2.org/publications/elibrary-page/?id=19802