Detection of dialogue in movie soundtrack for speech intelligibility enhancement

Kuba Łopatka

doi:10.1007/978-3-319-07569-3_12

Detection of dialogue in movie soundtrack for speech intelligibility enhancement

Abstract

A method for detecting dialogue in 5.1 movie soundtrack based on interchannel spectral disparity is presented. The front channel signals (left, right, center) are analyzed in the frequency domain. The selected partials in the center channel signal, which yield high disparity with left and right channels, are detected as dialogue. Subsequently, the dialogue frequency components are boosted to achieve increased dialogue intelligibility. The techniques for reduction of artifacts in the processed signal are also introduced. Smoothing in the time domain and in the frequency domain is applied to reduce unpleasant artifacts. The results of objective tests are provided, which prove that increased dialogue intelligibility is achieved with the aid of the proposed algorithm. The algorithm is particularly applicable in mobile devices while listening in mobile conditions.

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Kuba Łopatka mgr inż.

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Category:: Conference activity
Type:: materiały konferencyjne indeksowane w Web of Science
Title of issue:: 7th International Conference on Multimedia Communications, Services and Security (MCSS) strony 149 - 158
Language:: English
Publication year:: 2014
Bibliographic description:: Łopatka K..: Detection of dialogue in movie soundtrack for speech intelligibility enhancement, W: 7th International Conference on Multimedia Communications, Services and Security (MCSS), 2014, SPRINGER-VERLAG BERLIN, HEIDELBERGER PLATZ 3, D-14197 BERLIN, GERMANY,.
DOI:: Digital Object Identifier (open in new tab) 10.1007/978-3-319-07569-3_12
Verified by:: Gdańsk University of Technology