In our daily lives, auditory stream segregation allows us to differentiate concurrent sound sources and to make sense of the scene we are experiencing. However, a combination of segregation and the concurrent integration of auditory streams is necessary in order to analyze the relationship between streams and thus perceive a coherent auditory scene. The present functional magnetic resonance ima...

background and aim: spatial hearing is one of the most important functions of binaural hearing processing that is based on detection of fine interaural time and interaural intensity difference. spatial hearing is beyond auditory localization and lateralization. it helps auditory scene analysis and target stream segregation from other simultaneous sound sources. this function is important in spe...

OBJECTIVE This clinical trial investigated the ability of concurrent speech segregation in hearing impaired children. The auditory behavioral responses and auditory late responses (ALRs) were compared between test and control groups prior to vowel auditory training and after 3 and 6 months of vowel auditory training to find the effects of bottom-up training on concurrent speech segregation in h...

Address correspondence to: Sharon Cameron, Ph.D., Research Scientist and NHMRC Research Fellow, National Acoustic Laboratories, 126 Greville Street, Chatswood, NSW, 2067, Australia, [email protected]. as variances in inter-aural time and intensity differences between speech streams to separate a target auditory stimulus from distracting auditory stimuli (a process referred to as spatial...

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 ...

A fundamental problem in auditory and speech processing is the segregation of speech from concurrent sounds. This problem has been a focus of study in computational auditory scene analysis (CASA), and it has also been recently investigated from the perspective of blind source separation. Using a standard corpus of voiced speech mixed with interfering sounds, we report a comparison between CASA ...

The ability to attend to a particular sound in a noisy environment is an essential aspect of hearing. To accomplish this feat, the auditory system must segregate sounds that overlap in frequency and time. Many natural sounds, such as human voices, consist of harmonics of a common fundamental frequency (F0). Such harmonic complex tones (HCTs) evoke a pitch corresponding to their F0. A difference...

Auditory stream segregation is know as a process whereby sound elements are separated and integrated into some perceptual objects as a coherent whole, in the auditory scene analysis. Such a perceptual faculty is considered to be dependent on some factors in sounds such as similarity, good continuation, common fate, disjoint allocation, closure, and so on. For example, when we listen to fast alt...

How a mixture of acoustic sources is perceptually organized into discrete auditory objects remains unclear. One current hypothesis postulates that perceptual segregation of different sources is related to the spatiotemporal separation of cortical responses induced by each acoustic source or stream. In the present study, the dynamics of subthreshold membrane potential activity were measured acro...

Human listeners can segregate sound sources based on differences in frequency content and timing. In addition, spatial separation has been shown to improve this ability. The work presented here is an attempt to characterise the effect of spatial factors on segregation when other distinguishing factors are either unavailable or unreliable. This is relevant to understanding how the auditory syste...