Digitally controlled active noise reduction with integrated speech communication

• Autorzy: Steeneken H. J. M. , Verhave J.
• Języki publikacji: EN

Abstrakty

EN

Active noise reduction is a successful addition to passive ear-defenders for improvement of the sound attenuation at low frequencies. Design and assessment methods are discussed, focused on subjective and objective attenuation measurements, stability, and high noise level applications. Active noise reduction systems are suitable for integration with an intercom. For this purpose the intelligibility in combination with environmental noise is evaluated. Development of a system includes the acoustical design, the (digital) feedback control, and the speech input facility. In order to achieve optimal performance a specific audio design is required. An example of such a development is discussed.

Słowa kluczowe

EN

hearing protection; active noise reduction; speech communication; digital controlled feed back

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 2004
• Tom: Vol. 29, no. 3
• Strony: 397--409
• Opis fizyczny: Bibliogr. 7 poz., fot., rys., wykr.

Twórcy

autor

Steeneken H. J. M.

• TNO Human Factors, Soesterberg, The Netherlands

autor

Verhave J.

• TNO Human Factors, Soesterberg, The Netherlands

Bibliografia

• [1] LUEG P., Process of silencing sound oscillations, US Patent No. 2043416 (1936).
• [2] NELSON P. A., ELLIOTT S. J., Active control of sound, Academic Press, London 1993.
• [3] OLSON H. F., MAY E. G., Electronic sound absorber, J. Acoust. Soc. Am., 25, 1130–1136 (1953).
• [4] STEENEKEN H. J. M., HOUTGAST T., A physical method for measuring speech-transmission quality, J. Acoust. Soc. Am., 67, 318–326 (1980).
• [5] STEENEKEN H. J. M., VERHAVE J., Personal active noise reduction with integrated speech communication devices: development and assessment, Proc. Agard lecture series Copenhagen 1996.
• [6] STEENEKEN H. J. M., Personal active noise reduction with integrated speech communication devices: development and assessment, Noise and Health, 1, 67–75 (1998).
• [7] ZERA J., BRAMMER A. J., PAN G. J., Comparison between subjective and objective measures of active hearing protector and communication headset attenuation, J. Acoust. Soc. Am., 101, 6, 3486–3497 (1997).