Just Noticeable Difference in Apparent Source Width Depending on the Direction of a Single Reflection

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

Abstract

An investigation on the just noticeable difference in angle of a single reflection in terms of apparent source width was performed using a staircase method to obtain two, single reflection angles between 0° and 180°. In the presence of a direct sound, subjects compared the apparent source width produced by a single 90° reference reflection, and a single test reflection ranging between 0° to 90° and 0° to 180° for each threshold. Subjects repeated this test for four delay times of 5ms, 10ms, 20ms and 30ms. Reflection angles were found to be approximately 40° and 130° and, however, do not appear to vary with delay time. This implies that human hearing is not sensitive to changes in reflection angle in terms of apparent source width between the threshold angles.

Original languageEnglish
Title of host publication142nd Audio Engineering Society International Convention 2017
PublisherAudio Engineering Society
Pages599-609
Number of pages10
Volume2
ISBN (Print)9781510843523
Publication statusPublished - 11 May 2017
Event142nd Audio Engineering Society International Convention 2017 - Maritim Hotel Berlin, Berlin, Germany
Duration: 20 May 201723 May 2017
Conference number: 142
http://www.aes.org/events/142/ (Link to Conference Website)

Conference

Conference142nd Audio Engineering Society International Convention 2017
Abbreviated titleAES 2017
CountryGermany
CityBerlin
Period20/05/1723/05/17
Internet address

Fingerprint

Angle
Delay Time
Time delay
time lag
thresholds
stairways
Audition
hearing
Acoustic waves
Vary
Imply
acoustics

Cite this

Johnson, D., & Lee, H. (2017). Just Noticeable Difference in Apparent Source Width Depending on the Direction of a Single Reflection. In 142nd Audio Engineering Society International Convention 2017 (Vol. 2, pp. 599-609). [9757] Audio Engineering Society.
Johnson, Dale ; Lee, Hyunkook. / Just Noticeable Difference in Apparent Source Width Depending on the Direction of a Single Reflection. 142nd Audio Engineering Society International Convention 2017. Vol. 2 Audio Engineering Society, 2017. pp. 599-609
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Johnson, D & Lee, H 2017, Just Noticeable Difference in Apparent Source Width Depending on the Direction of a Single Reflection. in 142nd Audio Engineering Society International Convention 2017. vol. 2, 9757, Audio Engineering Society, pp. 599-609, 142nd Audio Engineering Society International Convention 2017, Berlin, Germany, 20/05/17.

Just Noticeable Difference in Apparent Source Width Depending on the Direction of a Single Reflection. / Johnson, Dale; Lee, Hyunkook.

142nd Audio Engineering Society International Convention 2017. Vol. 2 Audio Engineering Society, 2017. p. 599-609 9757.

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

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AB - An investigation on the just noticeable difference in angle of a single reflection in terms of apparent source width was performed using a staircase method to obtain two, single reflection angles between 0° and 180°. In the presence of a direct sound, subjects compared the apparent source width produced by a single 90° reference reflection, and a single test reflection ranging between 0° to 90° and 0° to 180° for each threshold. Subjects repeated this test for four delay times of 5ms, 10ms, 20ms and 30ms. Reflection angles were found to be approximately 40° and 130° and, however, do not appear to vary with delay time. This implies that human hearing is not sensitive to changes in reflection angle in terms of apparent source width between the threshold angles.

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Johnson D, Lee H. Just Noticeable Difference in Apparent Source Width Depending on the Direction of a Single Reflection. In 142nd Audio Engineering Society International Convention 2017. Vol. 2. Audio Engineering Society. 2017. p. 599-609. 9757