Stochastic Feature Transformation with Divergence-Based Out-of-Handset Rejection for Robust Speaker Verification
نویسندگان
چکیده
منابع مشابه
Stochastic Feature Transformation with Divergence-Based Out-of-Handset Rejection for Robust Speaker Verification
The performance of telephone-based speaker verification systems can be severely degraded by linear and non-linear acoustic distortion caused by telephone handsets. This paper proposes to combine a handset selector with stochastic feature transformation to reduce the distortion. Specifically, a GMMbased handset selector is trained to identify the most likely handset used by the claimants, and th...
متن کاملCluster-Dependent Feature Transformation with Divergence-based Out-of-Handset Rejection for Robust Speaker Verification
This paper proposes a divergence-based cluster selector with out-of-handset (OOH) rejection capability to identify the ‘unseen’ handsets. This is achieved by measuring the Jensen difference between the selector’s output and a constant vector with identical elements. The resulting cluster selector is combined with a feature-based channel compensation algorithm for telephone-based speaker verific...
متن کاملBlind Stochastic Feature Transformation for Channel Robust Speaker Verification
To improve the reliability of telephone-based speaker verification systems, channel compensation is indispensable. However, it is also important to ensure that the channel compensation algorithms in these systems surpress channel variations and enhance interspeaker distinction. This paper addresses this problem by a blind feature-based transformation approach in which the transformation paramet...
متن کاملDivergence-based out-of-class rejection for telephone handset identification
Research has shown that handset selectors can be used to assist telephone-based speech/speaker recognition. Most handset selectors, however, simply select the most likely handset from a set of known handsets even for speech coming from an ‘unseen’ handset. This paper proposes a divergence-based handset selector with out-of-handset (OOH) rejection capability to identify the ‘unseen’ handsets. Th...
متن کاملChannel robust speaker verification via Bayesian blind stochastic feature transformation
In telephone-based speaker verification, the channel conditions can be varied significantly from sessions to sessions. Therefore, it is desirable to estimate the channel conditions online and compensate the acoustic distortion without prior knowledge of the channel characteristics. Because no a priori knowledge is used, the estimation accuracy depends greatly on the length of the verification u...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2004
ISSN: 1687-6180
DOI: 10.1155/s1110865704308048