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A study on sound source segregation of frequency domain binaural model with reflection  

Lee, Chai-Bong (동서대학교)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.15, no.3, 2014 , pp. 91-96 More about this Journal
Abstract
For Sound source direction and separation method, Frequency Domain Binaural Model(FDBM) shows low computational cost and high performance for sound source separation. This method performs sound source orientation and separation by obtaining the Interaural Phase Difference(IPD) and Interaural Level Difference(ILD) in frequency domain. But the problem of reflection occurs in practical environment. To reduce this reflection, a method to simulate the sound localization of a direct sound, to detect the initial arriving sound, to check the direction of the sound, and to separate the sound is presented. Simulation results show that the direction is estimated to lie close within 10% from the sound source and, in the presence of the reflection, the level of the separation of the sound source is improved by higher Coherence and PESQ(Perceptual Evaluation of Speech Quality) and by lower directional damping than those of the existing FDBM. In case of no reflection, the degree of separation was low.
Keywords
Frequency Domain Binaural Model(FDBM); Sound Source Separation; Interaural Phase Difference(IPD); Interaural Level Difference(ILD); Perceptual Evaluation of Speech Quality(PESQ);
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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