A human listener has the remarkable ability to segregate an acoustic mixture and attend to a target sound. This perceptual process is called auditory scene analysis (ASA). Moreover, the listener can accomplish much of auditory scene analysis with only one ear. Research in ASA has inspired many studies in computational auditory scene analysis (CASA) for sound segregation. In this chapter we intr...

Techniques for separating speech from background noise and other sources of interference have important applications for robust speech recognition and speech enhancement. Many traditional computational auditory scene analysis (CASA) based approaches decompose the input mixture into a time-frequency (T-F) representation, and attempt to identify the T-F units where the target energy dominates tha...

An auditory-perception inspired singing voice separation algorithm for monaural music recordings is proposed in this paper. Under the framework of computational auditory scene analysis (CASA), the music recordings are first transformed into auditory spectrograms. After extracting the spectral-temporal modulation contents of the timefrequency (T-F) units through a two-stage auditory model, we de...

The energy spectrum of cosmic rays with primary energies between 10 14 eV and 10 16 eV has been studied with the CASA-MIA air shower array. The measured diierential energy spectrum is a power law (dj=dE / E ?) with spectral indices of 2:66 0:02 below approximately 10 15 eV and 3:00 0:05 above. A new method is used for measuring primary energy derived from ground based data in a compositionally ...

Software applications executing in highly dynamic environments are faced with the challenge of frequent and usually unpredictable changes in their execution environment. In order to cope with this challenge effectively, the applications need to adapt to these changes dynamically. CASA (Contract-based Adaptive Software Architecture) provides a framework for enabling dynamic adaptation of applica...

Speech is typically perceived against a background of other sounds. Listeners are adept at extracting target sources from the acoustic mixture reaching the ears. The auditory scene analysis account holds that this feat is the result of a two stage process. In the first stage, sound is decomposed both within and across auditory nuclei. Subsequent processes of perceptual organisation are informed...

Although the visual and auditory systems share the same basic tasks of informing an organism about its environment, most connectionist work on hearing to date has been devoted to the very different problem of speech recognition . VVe believe that the most fundamental task of the auditory system is the analysis of acoustic signals into components corresponding to individual sound sources, which ...