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A Study on the Implementation of Realistic Sound Through Cross-Talk Cancellation  

김학진 (명지전문대학 컴퓨터정보과)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.41, no.2, 2004 , pp. 99-108 More about this Journal
Abstract
This thesis deals a method to deliver more realistic sound by cancelling the cross-talk which is inherent to the 5.1 channel speaker system. The acoustical model for cross-talk cancellation is the free field model. This model minimizes distortion of sound. I used the bark scale sound quality compensation which based on psycho-acoustic. For the surround channels, band-limited sound quality compensation is performed in the frequency domain. I also performed the sound quality assessment test on the traditional 2 channel stereo and 5.1 channel system. This test is performed in the test chamber which satisfies the ITU-R specifications. I uses the IACC(Inter-Aural Cross-Correlation) to determine the preferences of the amateur and the golden ear experts to asses the trans-aural filter. According to the result from the proposed method, I got more the 38㏈ separation rates with the Dolby standard speaker array. The results on the diffusion by the subjective test with the experts shows 0.4 point increased then before.
Keywords
Spatial Sound; Cross-talk cancellation; Transaural Filter; Sound Signal Processing;
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