A method of voiced/unvoiced classification and pitch estimation based on Pitch Estimation Filter with Amplitude Compression (PEFAC) is proposed in this paper. The method first attenuates strong noise components at the?low frequencies based on PEFAC and extracts pitch harmonic from noisy speech in the log-frequency domain. Then, the harmonic number associated with the pitch harmonic is determined by Symmetric average magnitude sum function weighted Impulse-train Matching (SIM) scheme in time domain. A pitch tracking scheme using dynamic programming is applied to select the pitch candidates and a voiced speech probability is computed from the likelihood ratio of Gaussian Mixture Models (GMMs) classifiers based on 3-element feature vector. The simulated results show that the proposed method efficiently reduces voiced/unvoiced and pitch estimation error, and it is superior to some of the state-of-the–art method in the real environment.
RABINER L, CHENG M, ROSENBERG A E, et al. A comparative performance study of several pitch detection algorithms[J]. IEEE Transactions on Acoustics, Speech and Signal Processing, 1976, 24(5): 399-418.
[2]
VEPREK P and SCORDILIS M S. Analysis, enhancement and evaluation of five pitch determination techniques[J]. Speech Communication, 2002, 37(3): 249-270.
[3]
HAN Kun and Wang Deliang. Neural network based pitch tracking in very noisy speech[J]. IEEE/ACM Transactions on Audio, speech, and Language Processing, 2014, 22(12): 2158-2168.
[4]
MOLINA E, TARDON L J, BARBANCHO A M, et al. SiPTH: Singing transcription based on hysteresis defined on the pitch-time curve[J]. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2015, 23(2): 252-263.
[5]
DUAN Zhiyao, HAN Jinyu, and PARDO B. Multi-pitch streaming of harmonic sound mixtures[J]. IEEE/ACM Transactions on Audio, Speech, and Language Processing, 2014, 22(1): 138-150.
[6]
CHEN Yujui, WEI Chengwen, CHIANG Yifan, et al. Neuromorphic pitch based noise reduction for monosyllable hearing aid system application[J]. IEEE Transactions on Circuits and Systems, 2014, 61(2): 463-475.
WANG Yue, QIAN Zhihong, and ZHANG Ying. RCAF pitch detection algorithm based on expanded spectral subtraction [J]. Journal of Electronics & Information Technology, 2009, 31(5): 1161-1165.
[8]
SHIMAMURA T and KOBAYASHI H. Weighted autocorrelation for pitch extraction of noisy speech[J]. IEEE Transactions on Speech and Audio Processing, 2001, 9(7): 727-730.
XU Jingde, CHANG Liang, CUI Huijuan, et al. A pitch period detection algorithm using time and frequency analyses[J]. Journal of Tsinghua University, 2012, 52(3): 413-415.
[10]
SHAHNAZ C, ZHU W P, and AHMAD M O. Pitch estimation based on a harmonic sinusoidal autocorrelation model and a time-domain matching scheme[J]. IEEE Transactions on Audio, Speech, and Language Processing, 2012, 20(1): 322-335.
[11]
HUANG F and LEE T. Pitch estimation in noisy speech using accumulated peak spectrum and sparse estimation technique[J]. IEEE Transactions on Audio, Speech, and Language Processing, 2013, 21(1): 99-109.
[12]
GONZALEZ S and BROOKES M. PEFACA pitch estimation algorithm robust to high levels of noise[J]. IEEE Transactions on Audio, Speech, and Language Processing, 2014, 22(2): 518-530.
[13]
BYRNE D, DILLON H, TRAN K, et al. An international comparison of long term average speech spectra[J]. The Journal of the Acoustical Society of America, 1994, 96(4): 2108-2120.
[14]
BROOKES M. VOICEBOX: A speech processing toolbox
for MATLAB[OL]. http://www.ee.ic.ac.uk/hp/staff/dmb/ voicebox/voicebox.html. 2015.1.
[15]
PLANTE F, MEYER G F, and AINSWORTH W A. A pitch extraction reference database[C]. 4th European Conference on Speech Communication and Technology, Madrid, 1995: 837-840.
[16]
STEENEKEN H J and GEURTSEN F W. Description of the RSG-10 noise database[R]. Report IZF 1988-3 TNO, Soesterberg: Institute for Perception, 1988.
[17]
International Telecommunication Union-TP.56. Objective measurement of active speech level[S]. Geneva, 1993.
HAN Ming, LIU Jiaomin, MENG Junying, et al. A modeling and target detection algorithm based on adaptive adjustment??for mixture Gaussian background[J]. Journal of Electronics & Information Technology, 2014, 36(8): 2023-2027. doi: 10.3724/SP.J.1146.2013.01438.
[20]
TALKIN D. Speech Coding and Synthesis[M]. Elsevier Science, 1995, Chapter.14: 495-518.
