A fundamental frequency estimation method for noisy speech based on instantaneous amplitude and frequency
Yuichi Ishimoto, Masashi Unoki, Masato Akagi · 2001
This paper proposes a robust and accurate F0 estimation method for noisy speech. This method uses two different principles: (1) an F0 estimation based on periodicity and harmonicity of instantaneous amplitude for a robust estimation in noisy environments, and (2) an F0 estimation based on stability of instantaneous frequency as an accurate estimation method. The proposed method also uses a comb filter with controllable passbands to combine the two estimation methods. Simulation results showed that: (1) the proposed method can estimate F0s for clean speech as accurate as the method using only instantaneous frequency, (2) the proposed method can robustly estimate F0s for speech with aperiodic noise in comparison with the other methods such as the cepstrum method, and (3) the proposed method had the capability of estimating F0s for speech with periodic noise. 1.