Comparative study of various techniques to measure speech intelligibility

Description

The aim of this paper is to compare two different methods of measuring the Modulation Transfer Functions (MTF) and the corresponding derived STI-RASTI indices to assessing intelligibility. The first method uses, as test signal, a band filtered (500 and 2000 Hz) amplitude modulated noise. The second one uses MLS signals to obtain the impulse response of the system; further post processing allows us to calculate the MTF and STI-RASTI indices from this filtered response

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