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An experiment has been conducted to assess the perceptual effect of vertical interchannel decorrelation between pairs of vertically-spaced loudspeakers. The study focuses on band-limiting the vertical decorrelation of natural sound sources in groups of octave-bands, while reproducing the unprocessed octave-bands monophonically through the main-layer loudspeaker. The upper limit of the vertical decorrelation is fixed at the 16 kHz octave-band, with the lower limit varied across eight octave-bands (centre frequencies 63 Hz to 8 kHz). A monophonic unprocessed condition was also included in a multiple comparison test alongside the eight decorrelated conditions. The results demonstrate that vertical decorrelation of the 500 Hz octave-band and above can significantly increase the vertical spread of an auditory image, similar to that of broadband decorrelation.
Author (s): Gribben, Christopher; Lee, Hyunkook
Affiliation:
Meridian Audio Ltd., Huntingdon, UK; University of Huddersfield, Huddersfield, UK
(See document for exact affiliation information.)
Publication Date:
2019-03-06
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Permalink: https://aes2.org/publications/elibrary-page/?id=20397
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Gribben, Christopher; Lee, Hyunkook; 2019; Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation [PDF]; Meridian Audio Ltd., Huntingdon, UK; University of Huddersfield, Huddersfield, UK; Paper 78; Available from: https://aes2.org/publications/elibrary-page/?id=20397
Gribben, Christopher; Lee, Hyunkook; Increasing the Vertical Image Spread of Natural Sound Sources Using Band-Limited Interchannel Decorrelation [PDF]; Meridian Audio Ltd., Huntingdon, UK; University of Huddersfield, Huddersfield, UK; Paper 78; 2019 Available: https://aes2.org/publications/elibrary-page/?id=20397
@article{gribben2019increasing,
author={gribben christopher and lee hyunkook},
journal={journal of the audio engineering society},
title={increasing the vertical image spread of natural sound sources using band-limited interchannel decorrelation},
year={2019},
number={78},
month={march},}