Since Bregman published his unifying account of psychological results in auditory organization, Auditory Scene Analysis [1], there has been a series computational models of these principles. The dominant approach, as embodied in the dissertations of Cooke [2], Mellinger [3] and Brown [4], and elsewhere [5], may be characterized as follows: First the sound is processed by a conventional signalpr...

The Residue-Driven Architecture presented here is a model of auditory stream segregation from input sounds. A subsystem to extract auditory streams by using some sound attributes is called an agency and the design of each agency is based on the residue-driven architecture. This architecture consists of three kinds of agents: an event-detector, a tracergenerator, and tracers. The event-detector ...

A lot of effort has been made in Computational Auditory Scene Analysis (CASA) to segregate target speech from monaural mixtures. Based on the principle of CASA, this article proposes an improved algorithm for monaural speech segregation. To extract the energy feature more accurately, the proposed algorithm improves the threshold selection for response energy in initial segmentation stage. Since...

The human auditory system is, in a way, an engineering marvel. It is able to do wonderful things that powerful modern machines find extremely difficult. For instance, our auditory system is able to follow the lyrics of a song when the input is a mixture of speech and musical accompaniments. Another example is a party situation. Usually there are multiple groups of people talking, with laughter,...

The field of computational auditory scene analysis (CASA) strives to build computer models of the human ability to interpret sound mixtures as the combination of distinct sources. A major obstacle to this enterprise is defining and incorporating the kind of high level knowledge of real-world signal structure exploited by listeners. Speech recognition, while typically ignoring the problem of non...

A two-layer spiking neural network is used to segregate double vowels. The first layer is a partially connected spiking neurons of relaxation oscillatory type, while the second layer consists of fully connected relaxation oscillators. A twodimensional auditory image generated by the enhanced spectrum of cochlear filter bank envelopes is computed. The segregation is based on a channel selection ...

The term auditory scene analysis (ASA) refers to the ability of human listeners to form perceptual representations of the constituent sources in an acoustic mixture, as in the well-known ‘cocktail party’ effect. Accordingly, computational auditory scene analysis (CASA) is the field of study which attempts to replicate ASA in machines. Some CASA systems are closely modelled on the known stages o...

This paper describes an efficient method for the identification of the melody voice from the frame-wise updated magnitude and frequency values of tone objects. Most state of the art algorithms employ a probabilistic framework to find the best succession of melody tones. Often such methods fail, if there are several musical voices with a comparable strength in the audio mixture. In this paper, w...

We interpret the sound reaching our ears as the combined effect of independent, sound-producing entities in the external world; hearing would have limited usefulness if were defeated by overlapping sounds. Computer systems that are to interpret real-world sounds – for speech recognition or for multimedia indexing – must similarly interpret complex mixtures. However, existing functional models o...