Audibility evaluation of triangle-wave tones presented against domestic sounds: Comparison with the audibility of pure tones

Kenji Kurakata, Tazu Mizunami

Research output: Contribution to journalArticle

Abstract

A study was conducted to examine the effect of multiplicity of frequency components on the audibility of tone presented against interfering noise. The measurement method was essentially identical to that of an earlier study, but triangle-wave tones were used instead as an example of complex tones. The background noise and the target tones were reproduced by a personal computer. They were amplified using a power amplifier and presented to the listener through a loudspeaker in a soundproof room. The listener's chair was set at a distance of 2.5m from the loudspeaker, while the frequency characteristic of the sound reproduction system was corrected to be substantially flat at the listener's position using an equalizer. All the listeners performed pure-tone audiometry and tympanometry and completed a questionnaire concerning hearing difficulties before participating in the experiment to confirm that they had normal hearing for their age.

Original languageEnglish
Pages (from-to)158-160
Number of pages3
JournalAcoustical Science and Technology
Volume32
Issue number4
DOIs
Publication statusPublished - 2011
Externally publishedYes

Fingerprint

loudspeakers
hearing
triangles
audiometry
acoustics
evaluation
personal computers
background noise
power amplifiers
seats
rooms

Keywords

  • Aging effect
  • Audibility
  • Auditory signal
  • Complex tone
  • Domestic sound

ASJC Scopus subject areas

  • Acoustics and Ultrasonics

Cite this

@article{c854728087f442b893b2c34122651bbf,
title = "Audibility evaluation of triangle-wave tones presented against domestic sounds: Comparison with the audibility of pure tones",
abstract = "A study was conducted to examine the effect of multiplicity of frequency components on the audibility of tone presented against interfering noise. The measurement method was essentially identical to that of an earlier study, but triangle-wave tones were used instead as an example of complex tones. The background noise and the target tones were reproduced by a personal computer. They were amplified using a power amplifier and presented to the listener through a loudspeaker in a soundproof room. The listener's chair was set at a distance of 2.5m from the loudspeaker, while the frequency characteristic of the sound reproduction system was corrected to be substantially flat at the listener's position using an equalizer. All the listeners performed pure-tone audiometry and tympanometry and completed a questionnaire concerning hearing difficulties before participating in the experiment to confirm that they had normal hearing for their age.",
keywords = "Aging effect, Audibility, Auditory signal, Complex tone, Domestic sound",
author = "Kenji Kurakata and Tazu Mizunami",
year = "2011",
doi = "10.1250/ast.32.158",
language = "English",
volume = "32",
pages = "158--160",
journal = "Acoustical Science and Technology",
issn = "1346-3969",
publisher = "Acoustical Society of Japan",
number = "4",

}

TY - JOUR

T1 - Audibility evaluation of triangle-wave tones presented against domestic sounds

T2 - Comparison with the audibility of pure tones

AU - Kurakata, Kenji

AU - Mizunami, Tazu

PY - 2011

Y1 - 2011

N2 - A study was conducted to examine the effect of multiplicity of frequency components on the audibility of tone presented against interfering noise. The measurement method was essentially identical to that of an earlier study, but triangle-wave tones were used instead as an example of complex tones. The background noise and the target tones were reproduced by a personal computer. They were amplified using a power amplifier and presented to the listener through a loudspeaker in a soundproof room. The listener's chair was set at a distance of 2.5m from the loudspeaker, while the frequency characteristic of the sound reproduction system was corrected to be substantially flat at the listener's position using an equalizer. All the listeners performed pure-tone audiometry and tympanometry and completed a questionnaire concerning hearing difficulties before participating in the experiment to confirm that they had normal hearing for their age.

AB - A study was conducted to examine the effect of multiplicity of frequency components on the audibility of tone presented against interfering noise. The measurement method was essentially identical to that of an earlier study, but triangle-wave tones were used instead as an example of complex tones. The background noise and the target tones were reproduced by a personal computer. They were amplified using a power amplifier and presented to the listener through a loudspeaker in a soundproof room. The listener's chair was set at a distance of 2.5m from the loudspeaker, while the frequency characteristic of the sound reproduction system was corrected to be substantially flat at the listener's position using an equalizer. All the listeners performed pure-tone audiometry and tympanometry and completed a questionnaire concerning hearing difficulties before participating in the experiment to confirm that they had normal hearing for their age.

KW - Aging effect

KW - Audibility

KW - Auditory signal

KW - Complex tone

KW - Domestic sound

UR - http://www.scopus.com/inward/record.url?scp=79959914570&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=79959914570&partnerID=8YFLogxK

U2 - 10.1250/ast.32.158

DO - 10.1250/ast.32.158

M3 - Article

AN - SCOPUS:79959914570

VL - 32

SP - 158

EP - 160

JO - Acoustical Science and Technology

JF - Acoustical Science and Technology

SN - 1346-3969

IS - 4

ER -