Monaural and binaural subjective modulation transfer functions in simple reverberation
Publication: Research - peer-review › Article in proceedings – Annual report year: 2008
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Monaural and binaural subjective modulation transfer functions in simple reverberation. / Thompson, Eric Robert; Dau, Torsten.
In: Auditory Signal Processing in Hearing Impaired Listeners. ed. / Torsten Dau; Jörg Buchholz; James Harte; Thomas Ulrich Christiansen. Centertryk A/S, 2008.Publication: Research - peer-review › Article in proceedings – Annual report year: 2008
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TY - GEN
T1 - Monaural and binaural subjective modulation transfer functions in simple reverberation
A1 - Thompson,Eric Robert
A1 - Dau,Torsten
AU - Thompson,Eric Robert
AU - Dau,Torsten
PB - Centertryk A/S
PY - 2008
Y1 - 2008
N2 - The envelope of a signal is filtered by the transmission channel through which it passes. The amount of reduction for a given envelope, or modulation, frequency has been called the modulation transfer function (MTF) and can be derived from the impulse response of the transmission channel [Schroeder, M.R. (1981) Modulation transfer-functions: Definition and measurement, Acustica, 49, 179-182]. The envelope of a speech signal is critical for intelligibility, and the speech transmission index (STI) predicts the intelligibility of speech through a given transmission channel based on its MTF [Houtgast, T. and Steeneken, H.J.M. (1973) Modulation transfer-function in room acoustics as a predictor of speech intelligibility, Acustica, 28, 66-73]. In the present study, the results of intensity modulation detection experiments with broad-band noise carriers are reported in monaural and binaural conditions, with single reflections at different arrival times in the two ears and with a simulated room impulse response. The monaural data describe a subjective MTF, which is similar to the physical MTF. An interaural modulation phase difference can create an interaural intensity fluctuation, which can give a binaural advantage in detecting the intensity modulation. This binaural advantage could be used to enhance speech intelligibility over purely monaural listening.
AB - The envelope of a signal is filtered by the transmission channel through which it passes. The amount of reduction for a given envelope, or modulation, frequency has been called the modulation transfer function (MTF) and can be derived from the impulse response of the transmission channel [Schroeder, M.R. (1981) Modulation transfer-functions: Definition and measurement, Acustica, 49, 179-182]. The envelope of a speech signal is critical for intelligibility, and the speech transmission index (STI) predicts the intelligibility of speech through a given transmission channel based on its MTF [Houtgast, T. and Steeneken, H.J.M. (1973) Modulation transfer-function in room acoustics as a predictor of speech intelligibility, Acustica, 28, 66-73]. In the present study, the results of intensity modulation detection experiments with broad-band noise carriers are reported in monaural and binaural conditions, with single reflections at different arrival times in the two ears and with a simulated room impulse response. The monaural data describe a subjective MTF, which is similar to the physical MTF. An interaural modulation phase difference can create an interaural intensity fluctuation, which can give a binaural advantage in detecting the intensity modulation. This binaural advantage could be used to enhance speech intelligibility over purely monaural listening.
SN - 87-990013-1-4
BT - Auditory Signal Processing in Hearing Impaired Listeners
T2 - Auditory Signal Processing in Hearing Impaired Listeners
A2 - Christiansen,Thomas Ulrich
ED - Christiansen,Thomas Ulrich
ER -