An English Digit Speech Recognition Under Articfical Noise Background

Now,how to improve the noisy robustness of system is the focus of the current speech recogni-tion.This paper put foward a new way to achieve the continues English d igit speech recognition system under artificial environment.It is by m ixing noise and speech signal artificially based on an existing speech database.In order to make the speech text in new database suitable for the actual noisy environ-ment,we random ly add the noise text to the existing speech text of speech database accord ing to the d if-ferent SNR by the program make by ourselves.The results demonstrate that the system recognize the Eng-lish d igit in noisy environment very well.It is found that the exactness of recognizing words is 95.86.