Regular excitation reduction for effective and efficient LP-coding of speech
- 23 March 2005
- conference paper
- Published by Institute of Electrical and Electronics Engineers (IEEE)
- Vol. 10, 965-968
- https://doi.org/10.1109/icassp.1985.1168154
Abstract
This paper describes an effective and efficient time domain speech encoding technique that has an appealingly low complexity, and produces (near) toll quality speech at rates below 16 kbit/s. The proposed coder uses linear predictive techniques to remove the short-time correlation in the speech signal. The remaining (residual) information is then modeled by a regular (in time) excitation signal that, when inputted to the time-varying model filter, produces a signal that is "close" to the reference speech signal. The procedure for finding the appropriate excitation model parameters incorporates the solution of a few sets of linear equations and is of moderate complexity compared to competing coding systems such as Adaptive Transform Coding and Multi-Pulse Excitation Coding.Keywords
This publication has 5 references indexed in Scilit:
- Improving performance of multi-pulse LPC coders at low bit ratesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- A new model of LPC excitation for producing natural-sounding speech at low bit ratesPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Design and VLSI implementation of a concurrent solver for N coupled least-squares fitting problemsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Predictive Coding of Speech at Low Bit RatesIEEE Transactions on Communications, 1982
- Design of a Robust Baseband LPC Coder for Speech Transmission Over 9.6 Kbit/s Noisy ChannelsIEEE Transactions on Communications, 1982