Efficient Phantom Source Widening

We present a highly efficient filter structure to create power-complementary filter pairs for phantom source widening. It either introduces frequency-dependent phase or amplitude differences in a pair of loudspeaker signals. We evaluate how the perceptual effect is influenced by off-center listening...

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Main Authors: Franz ZOTTER, Matthias FRANK
Format: Article
Language:English
Published: Institute of Fundamental Technological Research Polish Academy of Sciences 2013-03-01
Series:Archives of Acoustics
Subjects:
Online Access:https://acoustics.ippt.pan.pl/index.php/aa/article/view/4
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author Franz ZOTTER
Matthias FRANK
author_facet Franz ZOTTER
Matthias FRANK
author_sort Franz ZOTTER
collection DOAJ
description We present a highly efficient filter structure to create power-complementary filter pairs for phantom source widening. It either introduces frequency-dependent phase or amplitude differences in a pair of loudspeaker signals. We evaluate how the perceptual effect is influenced by off-center listening positions in a standard 30 loudspeaker setup. The evaluation of the phantom source widening effect is based on measurements of the inter-aural cross-correlation coefficient (IACC), which is justified by its pronounced correlation to the perceived phantom source width in prior listening test results.
format Article
id doaj-art-42c8dcf3dfa24482aad6e25154b8b3ae
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issn 0137-5075
2300-262X
language English
publishDate 2013-03-01
publisher Institute of Fundamental Technological Research Polish Academy of Sciences
record_format Article
series Archives of Acoustics
spelling doaj-art-42c8dcf3dfa24482aad6e25154b8b3ae2025-08-20T03:11:51ZengInstitute of Fundamental Technological Research Polish Academy of SciencesArchives of Acoustics0137-50752300-262X2013-03-01381Efficient Phantom Source WideningFranz ZOTTER0Matthias FRANK1University of Music and Performing Arts GrazUniversity of Music and Performing Arts GrazWe present a highly efficient filter structure to create power-complementary filter pairs for phantom source widening. It either introduces frequency-dependent phase or amplitude differences in a pair of loudspeaker signals. We evaluate how the perceptual effect is influenced by off-center listening positions in a standard 30 loudspeaker setup. The evaluation of the phantom source widening effect is based on measurements of the inter-aural cross-correlation coefficient (IACC), which is justified by its pronounced correlation to the perceived phantom source width in prior listening test results.https://acoustics.ippt.pan.pl/index.php/aa/article/view/4source wideningphantom sourcedecorrelationIACC.
spellingShingle Franz ZOTTER
Matthias FRANK
Efficient Phantom Source Widening
Archives of Acoustics
source widening
phantom source
decorrelation
IACC.
title Efficient Phantom Source Widening
title_full Efficient Phantom Source Widening
title_fullStr Efficient Phantom Source Widening
title_full_unstemmed Efficient Phantom Source Widening
title_short Efficient Phantom Source Widening
title_sort efficient phantom source widening
topic source widening
phantom source
decorrelation
IACC.
url https://acoustics.ippt.pan.pl/index.php/aa/article/view/4
work_keys_str_mv AT franzzotter efficientphantomsourcewidening
AT matthiasfrank efficientphantomsourcewidening