Abstract
The concepts and experiments presented are focused on modifications of an existing parametric speech coding algorithm (CELP) introduced in order to improve subjective speech quality in telephone connections. The perceptual coding to bit rate limiting was added and algorithms qualifying speech components to the categories of ”voiced”, ”unvoiced”, ”transients” using rough sets were studied. The speech signal quality achieved with the proposed hybrid codec was compared to the quality offered by some standard speech codecs.
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Czyzewski, A. (2007). Speech Coding Employing Intelligent Signal Processing Techniques. In: Peters, J.F., Skowron, A., Marek, V.W., Orłowska, E., Słowiński, R., Ziarko, W. (eds) Transactions on Rough Sets VII. Lecture Notes in Computer Science, vol 4400. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-71663-1_1
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DOI: https://doi.org/10.1007/978-3-540-71663-1_1
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