Abstract
Many analysis-by-synthesis speech coders, such as CELP coders, make use of a combination of long-term and short-term predictors. The use of long term predictors (adaptive codebooks) incorporating lags with sub-sample resolution has contributed to enhanced performance for these coders, particularly for high pitched speakers [1], [2]. This paper discusses an efficient technique for determining the lag for the long-term predictor (index of the adaptive codebook) when sub-sample resolution lags are allowed. Also, an efficient technique for encoding these lags (adaptive codebook indices) is presented.
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References
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© 1993 Springer Science+Business Media New York
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Gerson, I.A., Jasiuk, M.A. (1993). Efficient Techniques for Determining and Encoding the Long Term Predictor Lags for Analysis-by-Synthesis Speech Coders. In: Atal, B.S., Cuperman, V., Gersho, A. (eds) Speech and Audio Coding for Wireless and Network Applications. The Springer International Series in Engineering and Computer Science, vol 224. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3232-3_27
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DOI: https://doi.org/10.1007/978-1-4615-3232-3_27
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