Passive noise reduction improvement by modifying the standard audiology TDH-49 headphone

Abdulkarim Shalool, Nasharuddin Zainal, Gan Kok Beng, Cila Umat, Siti Zamratol Mai Sarah Mukari

Research output: Contribution to journalArticle

Abstract

Headphones have passive noise attenuation characteristics, which depends on the ear cups material and shape. Therefore, the attenuation amount differs from one headphone to another. Hearing screening is an example of health application that uses headphones. Generally, for this procedure to produce reliable results, it has to be conducted in a sound treated room to ensure the ambient noise does not exceed the maximum permissible levels. Headphones equipped with passive noise attenuation may preclude the need of sound treated rooms. This paper proposes a method to improve the passive noise attenuation of the ear cups for both low and high frequencies by using acoustic absorption material on the ear cup. The experiment results show that the proposed method increases the attenuation level for low frequency by 19.5 dB at 500 Hz while no big difference at high frequencies. Therefore, pure tone hearing screening test can be performed by using the modified headphone outside the sound-treated booth without excluded of 500 Hz test tone.

Original languageEnglish
Pages (from-to)1320-1324
Number of pages5
JournalAdvanced Science Letters
Volume23
Issue number2
DOIs
Publication statusPublished - 1 Feb 2017

Fingerprint

Headphones
Audiology
Noise Reduction
Noise abatement
Attenuation
Noise
hearing
Ear
Acoustic waves
Audition
ambient noise
Acoustic noise
Hearing Tests
Screening
Low Frequency
acoustics
Acoustics
Hearing
Exceed
Health

Keywords

  • Ambient noise
  • Headphone calibration
  • Headphones
  • Passive noise attenuation

ASJC Scopus subject areas

  • Health(social science)
  • Computer Science(all)
  • Education
  • Mathematics(all)
  • Environmental Science(all)
  • Engineering(all)
  • Energy(all)

Cite this

Passive noise reduction improvement by modifying the standard audiology TDH-49 headphone. / Shalool, Abdulkarim; Zainal, Nasharuddin; Kok Beng, Gan; Umat, Cila; Mukari, Siti Zamratol Mai Sarah.

In: Advanced Science Letters, Vol. 23, No. 2, 01.02.2017, p. 1320-1324.

Research output: Contribution to journalArticle

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