Abstract
Vector Quantization (VQ) of spectral parameters for low-rate speech coding (below 4 kb/s) has recently attracted considerable attention. At this low rate, efficient quantization of the LPC parameters using as few bits as possible is essential. Although spectral parameter quantization was one of the first applications of vector quantization, its use has been limited by concerns regarding computational complexity, lack of robustness, and the expected performance across different speakers, across different spectral shapings, and on noisy communication channels.
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© 1993 Springer Science+Business Media New York
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Le Blanc, W.P., Mahmoud, S.A., Cuperman, V. (1993). Joint Design of Multi-Stage VQ Codebooks for LSP Quantization with Applications to 4 kbit/s Speech Coding. 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_14
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DOI: https://doi.org/10.1007/978-1-4615-3232-3_14
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