Binary and ratio time-frequency masks for robust speech recognition

2006 ◽  
Vol 48 (11) ◽  
pp. 1486-1501 ◽  
Author(s):  
Soundararajan Srinivasan ◽  
Nicoleta Roman ◽  
DeLiang Wang
Keyword(s):  
Speech Recognition ◽  
Robust Speech Recognition ◽  
Time Frequency

scholarly journals Enhanced Running Spectrum Analysis for Robust Speech Recognition Under Adverse Conditions: A Case Study on Japanese Speech

2017 ◽  
Vol 11 (1) ◽  
pp. 82-90
Author(s):  
George Mufungulwa ◽  
Hiroshi Tsutsui ◽  
Yoshikazu Miyanaga ◽  
Shin-ichi Abe
Keyword(s):  
Speech Recognition ◽  
Spectrum Analysis ◽  
High Accuracy ◽  
Point Of View ◽  
Robust Speech Recognition ◽  
Modulation Spectrum ◽  
Time Frequency ◽  
Adverse Conditions ◽  
Running Spectrum Analysis

In any real environment, noises degrade the performance of Automatic Speech Recognition (ASR) systems. Additionally, in the case of similar pronunciations, it is not easy to realize a high accuracy of recognition. From  this point of view, our work envisions an enhanced algorithm processing a speech modulation spectrum, such as Running Spectrum Analysis (RSA). It was also adequately applied to observed speech data. In the envisioned method, a modulation spectrum filtering (MSF) method directly modified the observed cepstral modulation spectrum by a Fourier transform of the cepstral time frequency. The method and experiments carried out for various passbands had favorable results that showed an improvement of about 1-4 % in recognition accuracycompared to conventional methods.

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