A perception‐based LSP distance measure for speech recognition

摘要: Because of their high correlation and reduced sensitivity to quantization errors, the line spectrum pair (LSP) frequency parameters have been used recently for efficient LPC information speech coding. In present paper, LSP representation is recognition a new perception‐based distance measure proposed. This exploits following two properties perception process [D. H. Klatt, Proc. ICASSP, 1278–1281 (1982)]: (1) The formant frequencies are most important perception: (2) bandwidths spectral tilt contribute very little perception. uses these in form weights weighted Euclidean measure. order derive weights, power P(f) computed each frame weight given ft taken be proportional [P(ft)]c. ...