Title :
VLSI architecture for the efficient computation of line spectral frequencies
Author :
Reynolds, David L. ; Head, Linda M. ; Ramachandran, Ravi P.
Author_Institution :
Dept. of Electr. & Comput. Eng., Rowan Univ., Glassboro, NJ, USA
Abstract :
One of the more computationally intensive portions of speech coding algorithms using linear predictive (LP) methods is the calculation of line spectral frequencies (LSFs) from the predictor coefficients. Methods for the efficient computation of LSFs have been developed. A very large scale integration (VLSI) design implementing one such method is presented. The architecture is designed to be optimized for speed and area and is suitable for integration into larger speech coding systems.
Keywords :
VLSI; application specific integrated circuits; circuit optimisation; floating point arithmetic; integrated circuit design; linear predictive coding; polynomials; speech coding; Chebyshev polynomial series evaluation; VHDL implementation; VLSI architecture; application specific VLSI systems; area optimization; floating point numerics; line spectral frequencies computation; linear predictive methods; predictor coefficients; speech coding algorithms; speed optimization; Algorithm design and analysis; Chebyshev approximation; Computational complexity; Computer architecture; Frequency; Large scale integration; Polynomials; Prediction algorithms; Speech; Very large scale integration;
Conference_Titel :
Circuits and Systems, 2003. ISCAS '03. Proceedings of the 2003 International Symposium on
Print_ISBN :
0-7803-7761-3
DOI :
10.1109/ISCAS.2003.1205120
