Research On Adaptive Speech Compensation Coding Technology In Wireless Optical Communication

This paper conducts a research on Adaptive Speech Compensation Coding in Wireless Optical Communication and presents an adaptive compensation coding system suitable for the optical wireless communication. This paper conducts an experiment and proves that the system is feasible.In this paper designs an evaluation system for the speech quality of the Wireless Optical Communication. The speech evaluation is mainly analyzed by PESQ method and Mean Opinion Scores method as a supplement. After carrying on a study and analysis on the present speech coding research, through the experiment data, the paper analyzes the abilities of different compensation coding for the compensating speech. The paper also analyzes the existing methods for adaptive speech compensation coding and designs an Adaptive Speech compensation coding system based on the speech quality and designs an adaptively switching threshold in accordance with the compensation abilities of speech for compensation coding. Then, using the adaptively switching threshold as judging factor, this paper conducts an actual speech communication experiment and tests the performance of the system. The research results prove that adaptive Speech compensation coding is feasible in Wireless Optical Communication and can improve the speech quality substantially.