Maximum-take-precedence ACELP: A low complexity search method

Fu Kun Chen; Jur Feru Yang

doi:10.1109/ICASSP.2001.941009

Maximum-take-precedence ACELP: A low complexity search method

Fu Kun Chen, Jur Feru Yang

Institute of Computer and Communication Engineering

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The ACELP method makes use of multipulse structure to represent the excitation pulses of residual signal. With the purpose of computational complexity reduction, this paper provides the Maximum-Take-Precedence ACELP (MTP-ACELP) search method under the acceptable degradation in performance. Because the maximum of target signal is preferentially compensated, the degradation of performance would be diminished. By predicting the locations of pulses, the computational complexity would be reduced. We not only reduce the possible pulse combinations in search procedure but also avoid the computation of useless correlation functions before the search procedure. Furthermore, the proposed method is compatible to any ACELP type vocoder, e.g. the G.723.1, G.729, GSM-EFR standards.

Original language	English
Pages (from-to)	693-696
Number of pages	4
Journal	ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
Volume	2
DOIs	https://doi.org/10.1109/ICASSP.2001.941009
Publication status	Published - 2001 Jan 1

All Science Journal Classification (ASJC) codes

Software
Signal Processing
Electrical and Electronic Engineering

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10.1109/ICASSP.2001.941009

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abstract = "The ACELP method makes use of multipulse structure to represent the excitation pulses of residual signal. With the purpose of computational complexity reduction, this paper provides the Maximum-Take-Precedence ACELP (MTP-ACELP) search method under the acceptable degradation in performance. Because the maximum of target signal is preferentially compensated, the degradation of performance would be diminished. By predicting the locations of pulses, the computational complexity would be reduced. We not only reduce the possible pulse combinations in search procedure but also avoid the computation of useless correlation functions before the search procedure. Furthermore, the proposed method is compatible to any ACELP type vocoder, e.g. the G.723.1, G.729, GSM-EFR standards.",

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Maximum-take-precedence ACELP: A low complexity search method

Abstract

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