Title :
The Teager energy based feature parameters for robust speech recognition in car noise
Author :
Jabloun, Firas ; Cetin, A. Enis
Author_Institution :
Dept. of Electr. Eng., Bilkent Univ., Ankara, Turkey
Abstract :
In this paper, a new set of speech feature parameters based on multirate signal processing and the Teager energy operator is developed. The speech signal is first divided into nonuniform subbands in mel-scale using a multirate filter-bank, then the Teager energies of the subsignals are estimated. Finally, the feature vector is constructed by log-compression and inverse DCT computation. The new feature parameters have a robust speech recognition performance in car engine noise which is low pass in nature
Keywords :
acoustic noise; data compression; discrete cosine transforms; high-pass filters; low-pass filters; parameter estimation; speech recognition; Teager energy based feature parameters; car engine noise; car noise; feature vector; inverse DCT computation; log-compression; mel-scale; multirate filter-bank; multirate signal processing; nonuniform subbands; robust speech recognition; subsignals; Discrete cosine transforms; Engines; Filter bank; Frequency; Noise robustness; Oscillators; Resonance; Speech processing; Speech recognition; Transfer functions;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1999. Proceedings., 1999 IEEE International Conference on
Conference_Location :
Phoenix, AZ
Print_ISBN :
0-7803-5041-3
DOI :
10.1109/ICASSP.1999.758115
