Autocorrelation Algorithm for Speech Pitch Detection Based on Matlab

The autocorrelation pitch detection algorithm is the key technique for speech signal process- ing,and its efficiency directly affects the quality of real-time speech processing. The implementation of the program with Matlab is designed on the basic principle of the autocorrelation pitch detection algo- rithm, the program can directly filter, get frames and calculate a short-time autocorrelation function of a time-domain speech signal to obtain the pitch period. The result of experiment shows that this algo- rithm structure is simple, the operand is small, the efficiency is high.