@article{Fattah_Zhu_Ahmad_2009, title={Band-adaptive formant frequency estimation from noisy speech in correlation domain}, volume={37}, url={https://jcaa.caa-aca.ca/index.php/jcaa/article/view/2149}, abstractNote={A study was conducted to estimate formant frequencies accurately under a severe noisy condition. A band-limited repeated autocorrelation function (RACF) was introduced of the observed noisy speech to overcome the adverse impact of noise. It was shown that the RACF was pole-preserving and capable of reducing the effect of noise significantly. A band-adaptive filter-bank was employed on a zero lag compensated ACF to separate each formant frequency region before the formant estimation. Autocorrelation operation was repeated on each of the resulting band-limited ACFs and a spectral peak picking method was employed to each of the band-limited RACFs to extract formant frequencies. The proposed algorithm was tested on synthetic and natural speech signals in the presence of noise.}, number={3}, journal={Canadian Acoustics}, author={Fattah, Shaikh Anowarul and Zhu, Wei-Ping and Ahmad, M. Omair}, year={2009}, month={Sep.}, pages={92–93} }