Dr Ben Shirley B.G.Shirley@salford.ac.uk
Associate Professor/Reader
The effect of stereo crosstalk on intelligibility : comparison of a phantom stereo image and a central loudspeaker source
Shirley, BG; Kendrick, P; Churchill, C
Authors
P Kendrick
C Churchill
Abstract
The roll out of surround sound for broadcasting and packaged media, and the consequent addition of a center loudspeaker for sound accompanying video have the potential to reduce the impact of acoustical crosstalk and so improve the intelligibility of material presented with speech in the center channel. A series of listening tests were carried out assessing any potential intelligibility benefits associated with presenting speech using a central loudspeaker, as found in 5.1 surround sound systems, compared to using a central stereo image. Twenty subjects with normal hearing were presented with a series of sentences containing identifying keywords in a background of multitalker babble over a wide stereo image. Half of the sentences were played as a central source and half as a central stereo image. The tests showed significant improvements in word recognition using a separate center loudspeaker when compared with a phantom center image between a pair of loudspeakers. A theoretical transfer function showing the difference in frequency response between the two conditions is calculated and compared with actual measurements made using a dummy head. The impact of acoustical crosstalk on the intelligibility of speech is assessed.
Citation
Shirley, B., Kendrick, P., & Churchill, C. (2007). The effect of stereo crosstalk on intelligibility : comparison of a phantom stereo image and a central loudspeaker source. Journal of the Audio Engineering Society, 55(10), 852-863
Journal Article Type | Article |
---|---|
Publication Date | Oct 15, 2007 |
Deposit Date | Jan 13, 2022 |
Journal | Journal of the Audio Engineering Society |
Print ISSN | 1549-4950 |
Publisher | Audio Engineering Society |
Volume | 55 |
Issue | 10 |
Pages | 852-863 |
Publisher URL | http://www.aes.org/e-lib/browse.cfm?elib=14174 |
Related Public URLs | http://www.aes.org/journal/ |
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