In this paper, we improved analyzing method of a spectrum envelope¹ using the diffusion filter bank.???? We increased the number of channel of filter bank. By dividing analysis band into subbands, we decreased the number of diffusion process. And, by...
In this paper, we improved analyzing method of a spectrum envelope¹ using the diffusion filter bank.???? We increased the number of channel of filter bank. By dividing analysis band into subbands, we decreased the number of diffusion process. And, by increasing the number of difference, we got higher selectivity. As a result of them, we reduced the total processing time, and got higher enhancement of discrimination. Through computer simulation, we showed that average recognition rate for single vowels of real voice is 88.3[%]. Hence We confirmed it to be useful for speech recognition which use spectrum analysis to analyze frequency components.⁴