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Journal of applied research and technology

versão On-line ISSN 2448-6736versão impressa ISSN 1665-6423

J. appl. res. technol vol.2 no.3 Ciudad de México Dez. 2004

 

Hearing Aid. measurement of electroacoustical characteristics

 

S. J. Pérez-Ruiz1, R. Damián-Zamacona2, S. Quintana-Thierry2, M. A. Bañuelos-Saucedo2 & J. Castillo-Hernández2

 

1 Laboratorio de Acustica, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, UNAM Apdo. Postal 70-186, Coyoacán, 04510, México, D.F.

2 Laboratorio de Electrónica, Centro de Ciencias Aplicadas y Desarrollo Tecnológico, UNAM Apdo. Postal 70-186, Coyoacán, 04510, México, D.F.

 

Received: January 13th, 2003.
Accepted: March 4th, 2003.

 

Abstract

In this work we show the results obtained from several measurements, on hearing aid (HA) prototype carried out at the Acoustic Laboratory of the Centro de Ciencias Aplicadas y Desarrollo Tecnológico (CCADET) at the Universidad Nacional Autónoma de México (UNAM). The hearing aid has been developed at the Electronics Laboratory of the same Center. All the electroacoustic measurements have been made according to the recommendations established in the ANSI and IEC Standards for hearing aids.

Keywords: Hearing Aids, Hearing Impairament, Hearing Assesment, Sensory Aids.

 

Resumen

En este trabajo, mostramos los resultados de varias mediciones para caracterizar un prototipo de un auxiliar (prótesis) auditivo. El prototipo fue desarrollado en el laboratorio de electrónica del Centro de Ciencias Aplicadas y Desarrollo Tecnológico (CCADET) en la Universidad Nacional Autónoma de México (UNAM). Todas las medidas electroacústicas se han hecho según las recomendaciones establecidas en las normas ANSI y IEC para los auxiliares auditivos.

 

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References

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[2] Aldridge D. C., Jarvis D. R. A Pressure -Step for Determining the Low Frequency Sensitivity of Measurement Microphone at High Sound Pressures, Acústica 84 (6), 1161-1166, 1998.         [ Links ]

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[4] MATLAB is a product of The MathWorKs Inc., Natick, MA.         [ Links ]

[5] IEC 118 (0) Hearing Aids. Measurements of Electroacoustical Characteristics. International Electrotechnical Commission, 1983.         [ Links ]

[6] ANSI S 3.22 Specification of Hearing Aid Characteristics. American National Standards Institute, 1976.         [ Links ]

[7] ANSI S 3.3 (R1976) Electroacoustical Characteristics of Hearing Aids. American National Standards Institute, 1976.         [ Links ]

[8] IEC 126 (1973) Reference coupler for the measurement of hearing aids using earphones coupled to the ear by means of ear inserts. International Electrotechnical Commission, 1973.         [ Links ]

[9] IEC 1 18-5 (1983-01) Nipples for insert earphone. International Electrotechnical Commission, 1983.         [ Links ]

[10] IEC 1 18-2 (1983-01) Hearing aids with automatic gain control circuits. International Electrotechnical Commission, 1983.         [ Links ]

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