Vector quantization based Gaussian modeling for speaker verification

Gaussian mixture models (GMMs) have become an established means of modeling feature distributions in speaker recognition systems. It is useful for experimentation and practical implementation purposes to develop and test these models in an efficient manner particularly when computational resources a...

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Bibliographic Details
Main Authors: Pelecanos, J., Myers, S., Sridharan, S., Chandran, V.
Format: Conference Proceeding
Language:English
Subjects:
Australia
NIST
Probability density function
Robustness
Speaker recognition
Speech
System testing
Systems engineering and theory
Vector quantization
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Summary:Gaussian mixture models (GMMs) have become an established means of modeling feature distributions in speaker recognition systems. It is useful for experimentation and practical implementation purposes to develop and test these models in an efficient manner particularly when computational resources are limited. A method of combining vector quantization (VQ) with single multi-dimensional Gaussians is proposed to rapidly generate a robust model approximation to the Gaussian mixture model. A fast method of testing these systems is also proposed and implemented. Results on the NIST 1996 Speaker Recognition Database suggest comparable and in some cases an improved verification performance to the traditional GMM based analysis scheme. In addition, previous research for the task of speaker identification indicated a similar system perfomance between the VQ Gaussian based technique and GMMs.
ISSN:1051-4651
2831-7475
DOI:10.1109/ICPR.2000.903543