Data Acquisition System Based on USB2.0
In this article,a data acquisition and telephone speech acquisition and recognition system is introduced which is basedon USB2.0 high-speed serial transport protocol.The design process and reference circuit as well as related program for dataacquisition,data transmission and telephone speech acquisition and recognition are described in detail.System hardware includesmulti-channel analog signal acquisition,telephone speech acquisition,A/D conversion,the communication between MasterComputer and Slave Computer based on USB2.0 and speech recognition of telephone speech.The software design can be dividedinto two parts: the Master Computer software design and the Slave Computer software design.The Master Computer softwarewhich developed with VB language mainly finishes data acquisition method control and collected data processing,and realizesspeech recognition of telephone speech; while the Slave Computer software which developed with assembly language mainly completes analog signal acquisition,data temporary storage and communication with Master Computer.
USB2.0 speech recognition LPC cepstrum maximum likelihood estimation
Huo Chunbao Li Lingjiao
Department of Signal Processing and Artificial intelligence Liaoning University of Technology Department of Signal Processing and Artificial intelfigence University of Huaguoshan
国际会议
南京
英文
201-204
2008-10-01（万方平台首次上网日期，不代表论文的发表时间）