VGA, video graphics adapter.

VC, Volume Control, a user-operated gain control.

Warble Tone, a frequency-modulated sine wave. The modulating signal is often a low frequency triangle wave.

1.Valente, M: Strategies for Selecting and Verifying Hearing Aid Fittings. New York:Thieme Medical Publishers, Inc.,1994.

ANSI S3.5, Methods for Calculation of the Speech Intelligibility Index, 1997

ANSI S3.6, Specification for Audiometers, 1996

ANSI S3.22, Specification of Hearing Aid Characteristics, revised 2003.

ANSI S3.46, Methods of Measurement of Real-Ear Performance Characteristics of Hearing Aids, 1997.

23 References

American National Standards Institute. (1997). American National Standard Methods of Measurement of Real-Ear Performance Characteristics of Hearing Aids. ANSI S3.46-1997. New York: American National Standards Institute.

American National Standards Institute. (1996). American National Standard Specification of Hearing Aid Characteristics. ANSI S3.22-1996. New York: American National Standards Institute.

Bagatto, M., Moodie, S. T.,Scollie, S., Seewald, R., Moodie. K.S., Pumford, J. & Liu, R. (2005). Clinical protocols for hearing instrument fitting in the desired sensation level method. Trends in Amplification, 9-4, 199-226.

Bentler, R.A. & Pavlovic, C.V. (1989). Transfer functions and correction factors used in hearing aid evaluation and research. Ear and Hearing, 10(10),58-63.

Byrne, D. (1977). The speech spectrum - Some aspects of its significance for hearing aid selection and evaluation. British Journal of Audiology, 11,40-46.

Cole, W.A. & Sinclair, S.T. (1998). The Audioscan RM500 Speechmap/DSL fitting system. Trends in Amplification, 3(4):125-139.

Corliss, E. L. R. (1990) The ear as a mechanism of communication. Journal of Audio Engineering Society, 38(9):640-652.

Cornelisse, L.E., Gagne, J-P & Seewald, R.C. (1991). Ear level recordings of the long-term average spectrum of speech. Ear and Hearing, 12(1),47-54.

Cornelisse, L.E., Gagne, J-P & Seewald, R.C. (1991). Long-term average speech spectrum at chest-level microphone location. Journal of Speech, Language, Pathology and Audiology, 15(3):7-12.

Cornelisse, L.E., Seewald, R.C., & Jamieson, D.G. (1994). Wide-dynamic-range compression hearing aids: The DSL[i/o] approach. The Hearing Journal, 47(10), 23-29.

Cornelisse L.E., Seewald R.C., & Jamieson D.G. (1995). The input/output (I/O) formula: A theoretical approach to the fitting of personal amplification devices. Journal of the Acoustical Society of America, 97(3), 1854-1684.

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