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A 1.6 KBPS Speech Codec Using Spectral Vector Quantization of Differential Features
Citation key Kim2000b
Author Kim, H. and Obermayer, K. and Bode, M. and Ruwisch, D.
Title of Book Proceedings of the 8th Australian International Conference on Speech Science & Technology
Pages 404 – 409
Year 2000
Abstract In this paper we propose an efficient algorithm for a low rate and low complexity speech compression algorithm based on spectral vector quantization of differential features in the frequency domain. Speech signals can be effectively encoded at medium transmission rates maintaining high quality of the reconstructed speech. To operate at lower transmission rates with minimized quality drawbacks, we use differential feature vector coding in the frequency domain. From the spectrogram comparison, it is shown that the use of the proposed method provides reasonable quality of synthesized speech.
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