Attentional influence on sound-localization behavior of barn owls was investigated in a cross-modal spatial cuing paradigm. After being cued to the most probable target side with a visual cuing stimulus, owls localized upcoming auditory target stimuli with a head turn toward the position of the sound source. In 80% of the trials, cuing stimuli pointed toward the side of the upcoming target stim...

Individual differences exist in sound localization performance even for normal-hearing listeners. Some of these differences might be related to acoustical differences in localization cues carried by the head related transfer functions (HRTF). Recent data suggest that individual differences in sound localization performance could also have a perceptual origin. The localization of an auditory tar...

Most experiments on auditory localization have been concerned with the horizontal and vertical positions of sound sources. Recent studies have cast new light on the basis for judging the third dimension - source distance.

Sound localization is an important aspect in human hearing, with interaural time difference (ITD) and interaural level difference (ILD) as two binaural cues that complement each other in this goal. Head related transfer functions (HRTFs) can be used to estimate and analyze these cues, where an HRTF representation in the spherical harmonics domain has recently been suggested for analysis. The ai...

In the field of artificial intelligence, adaptive learning technique refers to combinations of artificial neural networks. In this thesis the adaptive learning technique is been implemented to carry out the Detection and Localization of heart sound. It can be implemented in the NS2 and MATLAB In ns2 part logic will identify the sound of heart and in matlab part heart sound is detected. The issu...

We study sound source localization in the near field. In sound source localization research, 2D-MUSIC has already been developed. However, its performance degrades in diffused noisy environments. A localization method based on CSP in the near field has already been developed. However, localization accuracy depends on the accuracy of the estimation of the time delay between paired microphones. T...

Recently the importance of hands-free speech interfaces is increasingly recognized. However, in real environments, the presence of ambient noises and room reverberations seriously degrades the performance of the hands-free speech recognition. Reliable sound source localization is necessary to maximize the effect of noise reduction. This paper proposes a new method of multiple sound source local...

Humans perceive sound lags and differences in loudness between their two ears to ascertain the location of sounds in terms of azimuth, elevation and interval, etc. Humans and animals can determine the direction of sounds using only two ears, by making use of interaural time difference (ITD), interaural phase difference (IPD), interaural intensity difference (IID), etc. Robots can also use sound...

OBJECTIVE This study examined the effect of microphone placement on the interaural level differences (ILDs) available to bilateral cochlear implant (BiCI) users, and the subsequent effects on horizontal-plane sound localization. DESIGN Virtual acoustic stimuli for sound localization testing were created individually for eight BiCI users by making acoustic transfer function measurements for mi...