Title :
A method for measuring modulation transmission in speech transmitted via a nonlinear channel
Author_Institution :
Nokia Mobile Phones, Salo, Finland
Abstract :
The paper presents a method for measuring the transmission of speech transmitted through a channel with linear or nonlinear distortion and arbitrary noise. The method is a generalization of the well-established method of measuring speech intelligibility using modulation transmission function, but instead of measuring only the amount of the modulation in the received signal and comparing it against the amount of modulation in the transmitted signals in given carrier and modulation frequency band, the proposed method cross-correlates the envelopes of the transmitted and received signal
Keywords :
correlation methods; modulation; speech coding; speech intelligibility; speech processing; telecommunication channels; carrier frequency band; linear distortion; modulation frequency band; modulation transmission function; modulation transmission measurement; noise; nonlinear channel; nonlinear distortion; received signal modulation; signal envelopes cross correlation; speech intelligibility; speech transmission; transmitted signal modulation; Acoustic noise; Distortion measurement; Envelope detectors; Frequency measurement; Frequency modulation; IIR filters; Noise measurement; Nonlinear distortion; Speech codecs; Speech enhancement;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.598852
