The formulation of appropriate methods to measure the fluctuation of a noise environment may prove helpful in studies concerning both human and automatic speech recognition. This paper first discusses what is meant by the term 'fluctuation' in the context of speech masking. It then describes two recent experiments which investigated the effects of masker fluctuation on human speech perception and proposes an approach to measuring the fluctuation of a speech masker. Keywords: noise, speech perception, fluctuation.
Bibliographic reference. Howard-Jones, P. A. (1991): "Fluctuation of noise background: measurement and significance in relation to speech masking", In EUROSPEECH-1991, 1121-1124.