Title
Novel Speech Features for Improved Detection of Spoofing Attacks.
Abstract
Now-a-days, speech-based biometric systems such as automatic speaker verification (ASV) are highly prone to spoofing attacks by an imposture. With recent development in various voice conversion (VC) and speech synthesis (SS) algorithms, these spoofing attacks can pose a serious potential threat to the current state-of-the-art ASV systems. To impede such attacks and enhance the security of the ASV systems, the development of efficient anti-spoofing algorithms is essential that can differentiate synthetic or converted speech from natural or human speech. In this paper, we propose a set of novel speech features for detecting spoofing attacks. The proposed features are computed using alternative frequency-warping technique and formant-specific block transformation of filter bank log energies. We have evaluated existing and proposed features against several kinds of synthetic speech data from ASVspoof 2015 corpora. The results show that the proposed techniques outperform existing approaches for various spoofing attack detection task. The techniques investigated in this paper can also accurately classify natural and synthetic speech as equal error rates (EERs) of 0% have been achieved.
Year
Venue
Keywords
2016
2015 ANNUAL IEEE INDIA CONFERENCE (INDICON)
anti-spoofing,ASVspoof 2015,countermeasures,mel-frequency cepstral coefficient (MFCC),speech-signal-based frequency cepstral coefficient (SFCC),speaker recognition
Field
DocType
Volume
Mel-frequency cepstrum,Speech synthesis,Pattern recognition,Spoofing attack,Voice activity detection,Computer science,Filter bank,Feature extraction,Speech recognition,Artificial intelligence,Biometrics,Hidden Markov model
Journal
abs/1603.04264
ISSN
Citations 
PageRank 
2325-940X
4
0.38
References 
Authors
23
3
Name
Order
Citations
PageRank
Dipjyoti Paul1213.76
Monisankha Pal2252.41
Goutam Saha325523.17