Auditory model simulation for the study of selective listening

It has been shown how one of two vowels spoken concurrently by different speakers can be selected and resynthesized with a novel strategy. Use has been made of a signal processing auditory model based on physiological measurements and recently findings. These include the existence of channels with a large spread of bandwidth values for each centre frequency, in combination with enhancement and detection of amplitude modulation products. The signal processing avoids the use of harmonic sieve filtering and also leads to a representation that is useful for recognition purposes, with a tonotopical axis scaled along a periodicity axis.