Publication detail

Analyzing speaker verification embedding extractors and back-ends under language and channel mismatch

SILNOVA, A. STAFYLAKIS, T. MOŠNER, L. PLCHOT, O. ROHDIN, J. MATĚJKA, P. BURGET, L. GLEMBEK, O. BRUMMER, J.

Original Title

Analyzing speaker verification embedding extractors and back-ends under language and channel mismatch

Type

article in a collection out of WoS and Scopus

Language

English

Original Abstract

In this paper, we analyze the behavior and performance of speaker embeddings and the back-end scoring model under domain and language mismatch. We present our findings regarding ResNet-based speaker embedding architectures and show that reduced temporal stride yields improved performance. We then consider a PLDA back-end and show how a combination of small speaker subspace, language-dependent PLDA mixture, and nuisance-attribute projection can have a drastic impact on the performance of the system. Besides, we present an efficient way of scoring and fusing class posterior logit vectors recently shown to perform well on speaker verification task. The experiments are performed using the NIST SRE 2021 setup.

Keywords

speaker, verification, embedding

Authors

SILNOVA, A.; STAFYLAKIS, T.; MOŠNER, L.; PLCHOT, O.; ROHDIN, J.; MATĚJKA, P.; BURGET, L.; GLEMBEK, O.; BRUMMER, J.

Released

28. 6. 2022

Publisher

International Speech Communication Association

Location

Beijing

Pages from

9

Pages to

16

Pages count

8

URL

https://www.isca-speech.org/archive/pdfs/odyssey_2022/silnova22_odyssey.pdf

BibTex

@inproceedings{BUT179660,
  author="Anna {Silnova} and Themos {Stafylakis} and Ladislav {Mošner} and Oldřich {Plchot} and Johan Andréas {Rohdin} and Pavel {Matějka} and Lukáš {Burget} and Ondřej {Glembek} and Johan Nikolaas Langenhoven {Brummer}",
  title="Analyzing speaker verification embedding extractors and back-ends under language and channel mismatch",
  booktitle="Proceedings of The Speaker and Language Recognition Workshop (Odyssey 2022)",
  year="2022",
  pages="9--16",
  publisher="International Speech Communication Association",
  address="Beijing",
  doi="10.21437/Odyssey.2022-2",
  url="https://www.isca-speech.org/archive/pdfs/odyssey_2022/silnova22_odyssey.pdf"
}