Tuning in the amplitude modulation rate domain

• Autorzy: Sęk A. , Skrodzka E.
• Języki publikacji: EN

Abstrakty

EN

This paper is concerned with a certain form of masking that seems to exist in the modulation rate domain. It was shown that clearly audible changes in the amplitude of a 4kHz sinusoidal carrier signal produced by a sinusoidal "probe" modulator were inaudible (masked) in the presence of amplitude changes in the same carrier produced by a "masking" modulator which was a 10Hz wide band of white noise. This type of masking was most effective when the centre rate of the masking modulator was close or equal to the modulation rate of the probe modulator. The pattern of results showed a tuning effect in the modulation rate domain. These findings are generally consistent with the concept of a second stage of the filtering that may take place in the auditory system.

• Wydawca: Instytut Podstawowych Problemów Techniki PAN ; Komitet Akustyki PAN ; Polskie Towarzystwo Akustyczne
• Czasopismo: Archives of Acoustics
• Rocznik: 1998
• Tom: Vol. 23, no. 4
• Strony: 491--498
• Opis fizyczny: Bibliogr. 15 poz., wykr.

Twórcy

autor

Sęk A.

• Institute of Acoustics, Adam Mickiewicz University, Poznań, Poland

autor

Skrodzka E.

• Institute of Acoustics, Adam Mickiewicz University, Poznań, Poland

Bibliografia

• [1] S.P. Bacon and D.W. Grantham, Modulation masking: effects of modulation frequency, depth and phase, J. Acoust. Soc. Am., 85, 2575-2580 (1989).
• [2] T. Dau, B. KOLLMEIER and A. Kohlrausch, Modelling modulation perception: modulation low-pass filter or modulation filter bank?, [in:] Psychoacoustics, Speech and Hearing Aids, B. Kollmeier [Ed.], World Scientific, Singapore 1996.
• [3] T. Dau and D. PUSCHEL, A quantitative model of the effective signal processing in the auditory system, [in:] Contributions to Psychological Acoustics, A. Schick [Ed.], Bibliotheks- und Infor- mationssystem der Universitat Oldenburg, Oldenburg 1993.
• [4] T. HOUTGAST, Frequency selectivity in amplitude-modulation detection, J. Acoust. Soc. Am., 85, 1676-1680 (1989).
• [5] R.H. I
• [6] C. Lorenzi, C. Micheyl and F. Berthommier, Neuronal correlates of perceptual amplitude-modulation detection. Hear. Res., 90, 219-227 (1995).
• [7] B.C.J. Moore, An introduction to the psychology of hearing, 4t.h Ed., Academic Press, London 1997.
• [8] B.C.J. Moore, B.R. Glasberg, C.J. Plack and A.K. Biswas, The shape of the ear’s temporal window, J. Acoust. Soc. Am., 83, 1102-1116 (1988).
• [9] A.J. Oxenham and B.C.J. Moore, Modelling the additivity of nonsimultaneous masking, Hear.
• Res., 80, 105-118 (1994).
• [10] E. Ozimek, J. Konieczny, Y. Suzuki and T. Sone, Random changes in envelope of AM tones and their detection, J. Acoust. Soc. Jpn. (E), 19 (1998).
• [11] A.R. Palmer, Neural signal processing, [in:] Heai'ing, B.C.J. Moore [Ed.], Academic Press, San Diego 1995.
• [12] R.D. Patterson and B.C .J. Moore, Auditory filters and excitation patterns as representations of frequency resolution, [in:] Frequency Selectivity in Hearing, B.C .J. Moore [Ed.], Academic, London 1986.
• [13] A. Rees and A.R. Moller, Responses of neurones in the inferior colliculus of the rat to AM and FM tones, Hearing. Res., 10, 301-310 (1983).
• [14] N.F. Viemeister, Temporal modulation transfer functio ns based on modulation thresholds, J.A coust. Soc. Am., 66, 1364-1380 (1979).
• [15] L.L.M. Vogten, Pure-tone masking: A new result from a new method, [in:] Facts and Models in Hearing, E. Zwicker and E. Terhardt [Eds.], Springer-Verlag, Berlin 1974.