Application of voice data compress technology to testing of rotary machine

Testing data needs be compressed from two points of view of technical implement and economical goal, and paper analyzes research actuality about the technology of testing data compress. By means of the contrastive analysis of the mechanism and characteristic about voice signal and testing signal of rotary machines, the applicability of voice compress technology to testing data compress of rotary machines is researched. According to the spectrum element of testing signal which depicts the health status of rotary machines, the paper brought forward four data compress methods of testing signal including accurately portraying harmonious wave, and distilling the variety of harmonious wave, and classifying the signal mode, and following the lead of code excited linear prediction (CELP). It discusses the application and significance of data compress of testing signal especially for rotary machines in the end.