Title :
An improved speech endpoint detection system in noisy environments by means of third-order spectra
Author :
Navarro-Mesa, J. ; Moreno-Bilbao, A. ; Lleida-Solano, E.
Author_Institution :
ETSI de Telecomunicacion, Univ. de Las Palmas de Gran Canaria, Spain
Abstract :
We exploit the properties of the third-order spectra in two proposals to obtain speech detection functions. One is obtained from the principal domain of the bispectrum and the other one from the integrated bispectrum. We have developed a threshold-based system in which the detection functions can be easily integrated. Experiments show the improvement on the detection scores over the energy-based function in noisy environments.
Keywords :
higher order statistics; spectral analysis; speech coding; speech processing; speech recognition; bispectrum principal domain; integrated bispectrum; noisy environments; speech coding; speech detection functions; speech endpoint detection system; speech recognition; third-order spectra; threshold-based system; Acoustic noise; Associate members; Proposals; Signal analysis; Speech analysis; Speech coding; Speech enhancement; Telecommunication standards; Working environment noise;
Journal_Title :
Signal Processing Letters, IEEE
