ab2024
Newbie level 2
I am doing a project in speech analysis and would greatly appreciate any help on how to solve the following problem at hand:
Problem a.
Using linear predictive analysis, autocorrelation method, implement a matlab based vocoder for a speech signal (any recorded tape). Use a 20 msec frame step combined with a symmetrically Hamming window of 30 msec (lpc analysis) and 50 msec (pitch estimation). Use order P = 14 and preemphasis filter (1-0.95z^-1) in the lpc analysis.
b. Investigate (subjectively) the consequences of changing the lpc order from P = 14 to respectively [2, 4, 6, 8, 10, 20].
I have written a few matlab codes before but have never analyzed a speech signal before; I do not know how to start writing the matlab program for this task.
Problem a.
Using linear predictive analysis, autocorrelation method, implement a matlab based vocoder for a speech signal (any recorded tape). Use a 20 msec frame step combined with a symmetrically Hamming window of 30 msec (lpc analysis) and 50 msec (pitch estimation). Use order P = 14 and preemphasis filter (1-0.95z^-1) in the lpc analysis.
b. Investigate (subjectively) the consequences of changing the lpc order from P = 14 to respectively [2, 4, 6, 8, 10, 20].
I have written a few matlab codes before but have never analyzed a speech signal before; I do not know how to start writing the matlab program for this task.
