DNN and i-vector combined method for speaker recognition on multi-variability environments

Autor: Flavio J. Reyes-Díaz, Gabriel Hernández-Sierra, José Ramón Calvo de Lara
Rok vydání: 2021
Předmět:
Zdroj: International Journal of Speech Technology. 24:409-418
ISSN: 1572-8110
1381-2416
DOI: 10.1007/s10772-021-09796-1
Popis: The article deals with the compensation of variability in Automatic Speaker Verification systems in scenarios where the variability conditions due to utterance duration, reverberation and environmental noise are simultaneously present. We introduce a new representation of the speaker’s discriminative information, based on the use of a deep neural network trained discriminatively for speaker classification and i-vector representation. The proposed representation allows us to increase the verification performance by reducing the error between 2.5 and 7.9 % for all variability conditions compared to baseline systems. We also analyze the speaker verification system robustness based on interquartile range, obtaining a 1.19 times improvement compared to baselines evaluated.
Databáze: OpenAIRE