Conference Proceeding

Analysis of Variation on Intra-Speakers Speech Recognition Performances

Inst. of Technol. & Sci., Tokushima Univ., Tokushima
DOI:10.1109/NLPKE.2007.4368060 ISBN: 978-1-4244-1610-3 pp.387 - 392 In proceeding of: Natural Language Processing and Knowledge Engineering, 2007. NLP-KE 2007. International Conference on
Source: IEEE Xplore

ABSTRACT Even if a speaker uses a speaker-dependent speech recognition system, speech recognition performance varies. However, the relationships between intra-speaker's speech variability and speech recognition performance are not clear. To investigate these relationships, we have been collecting speech data since November 2002. In this paper, we analyze the relationships between intra-speaker's speech variability and the phoneme accuracy by a correlation analysis. Analyzed results showed the strong negative correlation between the phoneme accuracy and the speaking rate. The correlation coefficient indicated -0.77. Moreover, we can see that the phoneme accuracy is correlated with the temperature in the recording room and the humidity difference.

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Keywords

Analyzed results
 
humidity difference
 
intra-speaker's speech variability
 
phoneme accuracy
 
recording room
 
relationships
 
speaker-dependent speech recognition system
 
speech data
 
speech recognition performance varies
 
strong negative correlation
 

S. Tsuge