The relationship between interchannel time and level differences in vertical sound localisation and masking

Research output: Chapter in Book/Report/Conference proceedingConference contribution

15 Citations (Scopus)

Abstract

Listening experiments were conducted with a pair of vertically arranged loudspeakers. A group of subjects measured the level of delayed height channel signal at which any subjective effects of the signal became completely inaudible (masked threshold) as well as that at which the perceived sound image was localised fully at the lower loudspeaker (localised threshold), at nine different delay times ranging from 0 to 50ms. The sound sources were anechoic recordings of bongo and cello performance excerpts. At the delay times up to 5ms, source type did not have a significant effect for both threshold results and neither threshold varied significantly as the delay time increased. In this time range the average level reduction required for a full image shift was 6∼7dB while that for masking was 9∼10dB. At the higher delay times, on the other hand, both thresholds decreased as the delay time increased and the difference between the two sources in both threshold results was significant. Furthermore, the relationship between the two thresholds varied depending on the source type.

LanguageEnglish
Title of host publication131st Audio Engineering Society Convention 2011
Pages592-604
Number of pages13
Volume1
Publication statusPublished - 1 Mar 2012
Event131st Audio Engineering Society Convention - New York, United States
Duration: 20 Oct 201123 Oct 2011
Conference number: 131

Conference

Conference131st Audio Engineering Society Convention
Abbreviated titleAES
CountryUnited States
CityNew York
Period20/10/1123/10/11

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sound localization
Speech intelligibility
Masking
masking
Time delay
Delay Time
Vertical
Acoustic waves
thresholds
time lag
Loudspeakers
loudspeakers
acoustics
Relationships
Sound
recording
shift
Experiments

Cite this

Lee, H. (2012). The relationship between interchannel time and level differences in vertical sound localisation and masking. In 131st Audio Engineering Society Convention 2011 (Vol. 1, pp. 592-604)
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abstract = "Listening experiments were conducted with a pair of vertically arranged loudspeakers. A group of subjects measured the level of delayed height channel signal at which any subjective effects of the signal became completely inaudible (masked threshold) as well as that at which the perceived sound image was localised fully at the lower loudspeaker (localised threshold), at nine different delay times ranging from 0 to 50ms. The sound sources were anechoic recordings of bongo and cello performance excerpts. At the delay times up to 5ms, source type did not have a significant effect for both threshold results and neither threshold varied significantly as the delay time increased. In this time range the average level reduction required for a full image shift was 6∼7dB while that for masking was 9∼10dB. At the higher delay times, on the other hand, both thresholds decreased as the delay time increased and the difference between the two sources in both threshold results was significant. Furthermore, the relationship between the two thresholds varied depending on the source type.",
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Lee, H 2012, The relationship between interchannel time and level differences in vertical sound localisation and masking. in 131st Audio Engineering Society Convention 2011. vol. 1, pp. 592-604, 131st Audio Engineering Society Convention, New York, United States, 20/10/11.

The relationship between interchannel time and level differences in vertical sound localisation and masking. / Lee, Hyunkook.

131st Audio Engineering Society Convention 2011. Vol. 1 2012. p. 592-604.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Lee H. The relationship between interchannel time and level differences in vertical sound localisation and masking. In 131st Audio Engineering Society Convention 2011. Vol. 1. 2012. p. 592-604