Time delay estimation and adaptive frame length iterations for noise robust pitch extraction
Rocio Prieto, S. Kim · 2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03). · 2003
Abstract:- We describe a pitch tracking method based on a time delay estimation technique. Given two frames of voiced speech and it’s time delay, we will run a linear regression on the unwrapped phase of the quotient of the spectrum of both frames. A weighted linear regression will allow us to avoid the effect of phases corrupted by spectral leakage and noise. Iterations adapting the frame length will allow us to have a better time resolution, avoiding inaccuracies that could come from pitch doubling and jitter. Key-Words:- Pitch detection, noise robustness, time delay estimation. 1