IDENTICAL DIRECTION SENSATION LINE FORMED BY A SHIFTING SOUND SOURCE

Using IIDs to Estimate Sound Source Direction

Poster. Sounds recorded using a binaural head are analysed to find the azimuthal direction of a sound source. Two techniques for inter-aural intensity difference (IID) estimation are compared. In both, signals were filtered into a number of wideband logarithmically spaced frequency bands. In method 1, an estimate of the IID in each frequency band was made every 20ms, and in method 2, estimates ...

Neuronal Mechanisms Of Determination The Direction Upon The Sound Source

A model of the neuronal s t r u c t u r e s of the a u d i t o r y system is worked out to determine the d i r e c t i o n upon the 6ource of the sound s i g n a l w i t h steep-sided f r o n t . The d i r e c t i o n upon the sound source is determined on the b a s i s of a gener a l i z e d parameter which i s the r e s u l t o f two measurements: ( I ) moments of a r r i v a l of the s i g n...

Optimal Prediction of Moving Sound Source Direction in the Owl

Capturing nature's statistical structure in behavioral responses is at the core of the ability to function adaptively in the environment. Bayesian statistical inference describes how sensory and prior information can be combined optimally to guide behavior. An outstanding open question of how neural coding supports Bayesian inference includes how sensory cues are optimally integrated over time....

Estimation of Sound Source Direction Using Parabolic Reflection Board

This paper presents a new sound-source-direction estimation method using only a single microphone with a parabolic reflection board. In our previous work [1], we proposed GMM (Gaussian Mixture Model) separation for estimation of the sound source direction, where the observed (reverberant) speech is separated into the acoustic transfer function and the clean speech GMM. However, the previous met...

Non-Line-of-Sight Localisation of a Sound Source