An analysis and comparative evaluation of MFCC variants for speaker identification over VoIP networks

2015 ◽  
Author(s):  
Bouziane Ayoub ◽  
Kharroubi Jamal ◽  
Zarghili Arsalane
Keyword(s):  
Comparative Evaluation ◽  
Speaker Identification

scholarly journals Speaker Identification Using Data-Driven Score Classification

2016 ◽  
Vol 21 (2) ◽  
pp. 55-63
Author(s):  
Hock Gan ◽  
Iosif Mporas ◽  
Saeid Safavi ◽  
Reza Sotudeh
Keyword(s):  
Support Vector Machine ◽  
Real World ◽  
Comparative Evaluation ◽  
Speaker Identification ◽  
Selection Task ◽  
Identification Accuracy ◽  
Data Driven ◽  
Support Vector ◽  
Classification Algorithms ◽  
Using Data

Abstract We present a comparative evaluation of different classification algorithms for a fusion engine that is used in a speaker identity selection task. The fusion engine combines the scores from a number of classifiers, which uses the GMM-UBM approach to match speaker identity. The performances of the evaluated classification algorithms were examined in both the text-dependent and text-independent operation modes. The experimental results indicated a significant improvement in terms of speaker identification accuracy, which was approximately 7% and 14.5% for the text-dependent and the text-independent scenarios, respectively. We suggest the use of fusion with a discriminative algorithm such as a Support Vector Machine in a real-world speaker identification application where the text-independent scenario predominates based on the findings.

Comparison of In-the-Ear and Over-the-Ear Hearing Aid Fittings

1986 ◽  
Vol 51 (4) ◽  
pp. 362-369 ◽  
Author(s):  
Donna M. Risberg ◽  
Robyn M. Cox
Keyword(s):  
Hearing Aids ◽  
High Frequency ◽  
Comparative Evaluation ◽  
Speech Intelligibility ◽  
Hearing Aid ◽  
Hearing Aid Fitting ◽  
The Difference ◽  
Functional Gain ◽  
The Relationship

A custom in-the-ear (ITE) hearing aid fitting was compared to two over-the-ear (OTE) hearing aid fittings for each of 9 subjects with mild to moderately severe hearing losses. Speech intelligibility via the three instruments was compared using the Speech Intelligibility Rating (SIR) test. The relationship between functional gain and coupler gain was compared for the ITE and the higher rated OTE instruments. The difference in input received at the microphone locations of the two types of hearing aids was measured for 10 different subjects and compared to the functional gain data. It was concluded that (a) for persons with mild to moderately severe hearing losses, appropriately adjusted custom ITE fittings typically yield speech intelligibility that is equal to the better OTE fitting identified in a comparative evaluation; and (b) gain prescriptions for ITE hearing aids should be adjusted to account for the high-frequency emphasis associated with in-the-concha microphone placement.

COMPARATIVE EVALUATION PROLONGED CONTACT WITH THE CHILDREN'S TOY, RAISED AT HOME AND IN PRESCHOOL

2017 ◽  
Vol 2017 (67) ◽  
pp. 208-214
Author(s):  
A.G. Platonova ◽  
◽  
N.Ya. Yatskovskaya ◽  
E.S. Shkarban ◽  
H.M. Saenko ◽  
...  
Keyword(s):  
Comparative Evaluation ◽  
Prolonged Contact ◽  
At Home

Method for measuring distortions of a speech signal during its transmission over a communication channel to a biometric identification system

2020 ◽  
pp. 65-72
Author(s):  
V. V. Savchenko ◽  
A. V. Savchenko
Keyword(s):  
Speech Signal ◽  
Communication Channel ◽  
Speaker Identification ◽  
A Priori ◽  
Small Samples ◽  
Practical Implementation ◽  
Identification System ◽  
New Information ◽  
Discrimination Criterion ◽  
A Priori Uncertainty

This paper is devoted to the presence of distortions in a speech signal transmitted over a communication channel to a biometric system during voice-based remote identification. We propose to preliminary correct the frequency spectrum of the received signal based on the pre-distortion principle. Taking into account a priori uncertainty, a new information indicator of speech signal distortions and a method for measuring it in conditions of small samples of observations are proposed. An example of fast practical implementation of the method based on a parametric spectral analysis algorithm is considered. Experimental results of our approach are provided for three different versions of communication channel. It is shown that the usage of the proposed method makes it possible to transform the initially distorted speech signal into compliance on the registered voice template by using acceptable information discrimination criterion. It is demonstrated that our approach may be used in existing biometric systems and technologies of speaker identification.

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