改进的混合MFCC语音识别算法研究

Improved speech recognition algorithm based on MFCC feature

针对MFCC特征参数在语音识别中对中高频信号的识别精度不高的特点,提出采用IMFCC,MIDMFCC,MFCC相结合的改进算法,使用混合滤波器组,提高在语音中高频区域中的识别精度。实验结果表明,改进之后的算法与经典算法比较,在相同环境下对语音信息的识别率都有一定程度的提高。

Aiming at low calculation accuracy of MFCC feature parameters for speech recognition in high-frequency signals,this paper adopts the combination algorithm of IMFCC,MIDMFCC,MFCC,which uses a mixture of filter banks to enhance high-frequency calculation accuracy in the calculation accuracy.The experiments result shows that the recognition rate of improved algorithm increases compared to the classical algorithm in the same environment.