Purpose:
Assignments in Speech Signal Processing, based on Matlab. Learn methods of endpoint detection, pitch detection, LPC feature detection, MFCC feature detection, and speech recognition.
Solution:
Combine short-time zero-crossing rate and the short-time energy method to detect endpoinds. Use autocorrelation funtion to realize pitch detection. Combine linear prediction coefficient analysis and short-time autocorrelation function to detect LPC feature. Calculate the MFCC parameters to realize MFCC feature detection. Combine endpoint detection, pitch detection, LPC and MFCC feature to realize recognition.