A novel hybrid feature method based on Caelen auditory model and gammatone filterbank for robust speaker recognition under noisy environment and speech coding distortion

Currently, the majority of the state-of-the-art speaker recognition systems predominantly use short-term cepstral feature extraction approaches to parameterize the speech signals. In this paper, we propose new auditory features based Caelen auditory model that simulate the external, middle and inner...

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Bibliographic Details
Published in:Multimedia tools and applications 2023-05, Vol.82 (11), p.16195-16212
Main Authors: Krobba, Ahmed, Debyeche, Mohamed, Selouani, Sid. Ahmed
Format: Article
Language:English
Subjects:
Codec
Coding
Coefficients
Computer Communication Networks
Computer Science
Data Structures and Information Theory
Distortion
Error reduction
Feature extraction
Mathematical models
Multimedia Information Systems
Special Purpose and Application-Based Systems
Speech
Speech recognition
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Summary:Currently, the majority of the state-of-the-art speaker recognition systems predominantly use short-term cepstral feature extraction approaches to parameterize the speech signals. In this paper, we propose new auditory features based Caelen auditory model that simulate the external, middle and inner parts of the ear and Gammtone filter for speaker recognition system, called Caelen Auditory Model Gammatone Cepstral Coefficients (CAMGTCC). The performances evaluations of the proposed feature are carried by the TIMIT and NIST 2008 corpus. The speech coding represent by Adaptive Multi-Rate wideband (AMR-WB) and noisy conditions using various noises SNR levels which are extracted from NOISEX-92. Speaker recognition system using GMM-UBM and i-vector-GPLDA modelling. The experimental results demonstrate that the proposed feature extraction method performs better compared to the Gammatone Cepstral Coefficients (GTCC) and Mel Frequency Cepstral Coefficients (MFCC) features. For speech coding distortion, the features extraction proposed improve the robustness of codec-degraded speech at different bit rates. In addition, when the test speech signals are corrupted with noise at SNRs ranging from (0 dB to 15 dB), we observe that CAMGTCC achieves overall equal error rate (EER) reduction of 10.88% to 6.8% relative, compared to baselines.
ISSN:1380-7501
1573-7721
DOI:10.1007/s11042-022-14068-4