Study on Method for Estimating F0 of Steady Complex Tone in Noisy Reverberant Environments

Abstract

This paper proposes a method for robustly and accurately estimating fundamental frequency (F0) of the steady complex tone on the basis of an amplitude modulation/demodulation technique. It is based on the well-known mechanism of pitch perception for AM tone. The comparative results revealed that the percentage correct rates of the estimated F0s using a few recent methods (TEMPO, PHIA, and CmpCep) were drastically reduced as the SNR decreased and as the reverberation time increased. The results also demonstrated that the proposed method robustly and accurately estimated F0 in both noisy and reverberant environments.

Robust Method for Estimating F0 of Complex Tone Based on Pitch Perception of Amplitude Modulated Signal

“…The possibility of estimating the F 0 of a steady complex tone in noisy reverberant environments based on the pitch perception of AM tone has been studied [7,9]. The results of computer simulations showed that our method could robustly and accurately estimate F 0 from a noisy reverberant tone.…”

“…It has been reported that both methods can be used to estimate the F 0 of target noiseless speech extremely accurately. However, they cannot precisely estimate F 0 in noisy environments [5], reverberant environments [6], or both [7].…”