Process to adapt the signal amplification in a hearing...

Details Process to adapt the signal amplification in a hearing... Process to adapt the signal amplification in a hearing...

2006-10-17

2006-10-17

Tran, Sinh (Department: 2615)

Electrical audio signal processing systems and devices

Hearing aids, electrical

Wideband gain control

C381S320000

Reexamination Certificate

active

07123732

ABSTRACT:
A input signal for a hearing device signal processing unit is generated with the aid of an electro-acoustic converter. An output signal is generated by applying signal amplification. The signal amplification is adapted by determining a reference level of the input signal using statistical calculation methods. A minimum input signal level is determined by subtracting a predefined difference value from the reference level of the input signal. An amplification function is applied to the input signal when the signal level is less than the minimum input signal level. This amplification function is different from an amplification function applied when the signal level is greater than the minimum input signal level.

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Stone M. A. et al: “Comparison of different forms of compression using wearable digital haring aids” Journal of the Acoustical Society of America, Dec. 1999, Acoust. Soc. America Through AIP, USA, bd. 106, Nr. 6, Seiten 3603-3619, XP001162751, ISSN: 0001-4966.

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