Active noise control for hearing screening test

Simulation and experiment

Dhifaf Azeez, Mohd Alauddin Mohd Ali, Hafizah Husain, Gan Kok Beng, Cila Umat

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Hearing screening is a quick and cost-effective method of separating individuals with normal hearing from those with possibilities of having hearing loss. Commonly, an audiometer, a sound level meter, trained personnel and a quiet room are required to perform this test. This procedure is difficult to implement, especially in a remote site such as a factory or a school due to the ambient noise that may cause test inaccuracy. In this work, the application of active noise control (ANC) is proposed to reduce the ambient noise using a personal computer in a hearing screening test. The ANC algorithm was simulated in MATLAB software and implemented using a computer with data acquisition modules and LabVIEW software. Results show that anti-noise was successfully generated in the electrical domain but no reduction was observed in the acoustic domain. ANC is a deterministic application that requires a real-time operating system to respond to the input with precisely timed output. To have an effective ANC system, the processing time has to be less than 0.125 ms at 8 KHz sampling rate.

Original languageEnglish
Pages (from-to)67-78
Number of pages12
JournalInternational Journal of E-Health and Medical Communications
Volume1
Issue number3
DOIs
Publication statusPublished - Jul 2010

Fingerprint

Hearing Tests
Active noise control
Audition
Noise
Screening
Audiometers
Experiments
Hearing
Acoustic noise
Personal computers
MATLAB
Software
Industrial plants
Data acquisition
Acoustics
Acoustic waves
Personnel
Sampling
Control systems
Computer Systems

Keywords

  • Active Noise Control
  • Feed-Forward ANC
  • Hearing Screening
  • LMS Algorithm
  • PC-Based Systems

ASJC Scopus subject areas

  • Computer Science Applications
  • Health Informatics

Cite this

Active noise control for hearing screening test : Simulation and experiment. / Azeez, Dhifaf; Ali, Mohd Alauddin Mohd; Husain, Hafizah; Kok Beng, Gan; Umat, Cila.

In: International Journal of E-Health and Medical Communications, Vol. 1, No. 3, 07.2010, p. 67-78.

Research output: Contribution to journalArticle

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