NDLI: A Simplified Algorithm for Representation and Alignment of the Characteristic Waveform in WI Speech Coding

Content Provider	IEEE Xplore Digital Library
Author	Feng-yan Qi Chang-chun Bao
Copyright Year	2006
Description	Author affiliation: Sch. of Electron. Inf. & Control Eng., Beijing Univ. Technol. (Feng-yan Qi; Chang-chun Bao)
Abstract	Waveform interpolation (WI) speech coding has a good performance compared with various low bit rate coders, and provides high-quality reconstructed speech. However, characteristic waveform (CW) representation and alignment in WI model has very high complexity in computation. This has restricted its further developments and practical applications. The improved algorithm for CW representation and CW alignment was proposed by using FFT, cubic B-spline interpolation and period extension in this paper. The experimental results show that the improved algorithm has greatly reduced the computational complexity and kept the same speech quality as original coder
File Size	108458
File Format	PDF
ISBN	0780397363
DOI	10.1109/ICOSP.2006.345507
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-11-16
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Speech coding Computational complexity Discrete Fourier transforms Interpolation Spline Control engineering Data mining Fast Fourier transforms Frequency domain analysis Testing
Content Type	Text
Resource Type	Article

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A Simplified Algorithm for Representation and Alignment of the Characteristic Waveform in WI Speech Coding