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Convention Paper

Detection threshold for tones above 22 kHz

Authors: Kiryu, Shogo; Ashihara, Kaoru

AES Convention 110 · Paper 5401 · May 2001

Abstract

To investigate audibility of ultrasounds contained in a complex tone, psychoacoustic experiments were designed. Human subjects were required to discriminate stimuli with and without components above 22 kHz. All subjects distinguished between sounds with and without ultrasounds only when the stimulus was presented through a single loudspeaker. When the stimulus was divided into six bands of frequencies and presented through 6 loudspeakers in order to reduce intermodulation distortions, no subject could detect any ultrasounds. It was concluded that addition of ultrasounds might affect sound impression by means of some non-linear interaction that might occur in the loudspeakers.

Details

Published in
AES Convention 110
AES Convention
110
Paper number
5401
Publication date
May 6, 2001
Session subject
Psychoacoustics, Perception, and Listening Tests
Affiliation
National Institute of Advanced Industrial Science and Technology, Ibaraki, Japan (See document for exact affiliation information.)
Type
Convention Paper