Search Results for author: Galina Lavrentyeva

Found 12 papers, 1 papers with code

Universal speaker recognition encoders for different speech segments duration

no code implementations28 Oct 2022 Sergey Novoselov, Vladimir Volokhov, Galina Lavrentyeva

According to our observations systems trained on short speech segments are optimal for short phrase speaker verification and systems trained on long segments are superior for long segments verification.

Speaker Recognition Speaker Verification

Investigation of Different Calibration Methods for Deep Speaker Embedding based Verification Systems

no code implementations28 Mar 2022 Galina Lavrentyeva, Sergey Novoselov, Andrey Shulipa, Marina Volkova, Aleksandr Kozlov

An additional focus of this research is to estimate the impact of score normalization on the calibration performance of the system.

Speaker Verification

Robust Speaker Recognition with Transformers Using wav2vec 2.0

no code implementations28 Mar 2022 Sergey Novoselov, Galina Lavrentyeva, Anastasia Avdeeva, Vladimir Volokhov, Aleksei Gusev

Recent advances in unsupervised speech representation learning discover new approaches and provide new state-of-the-art for diverse types of speech processing tasks.

Data Augmentation Representation Learning +2

Deep Speaker Embeddings for Far-Field Speaker Recognition on Short Utterances

no code implementations14 Feb 2020 Aleksei Gusev, Vladimir Volokhov, Tseren Andzhukaev, Sergey Novoselov, Galina Lavrentyeva, Marina Volkova, Alice Gazizullina, Andrey Shulipa, Artem Gorlanov, Anastasia Avdeeva, Artem Ivanov, Alexander Kozlov, Timur Pekhovsky, Yuri Matveev

Speaker recognition systems based on deep speaker embeddings have achieved significant performance in controlled conditions according to the results obtained for early NIST SRE (Speaker Recognition Evaluation) datasets.

Speaker Recognition Speaker Verification

STC Antispoofing Systems for the ASVspoof2019 Challenge

1 code implementation11 Apr 2019 Galina Lavrentyeva, Sergey Novoselov, Andzhukaev Tseren, Marina Volkova, Artem Gorlanov, Alexandr Kozlov

We enhanced Light CNN architecture previously considered by the authors for replay attacks detection and which performed high spoofing detection quality during the ASVspoof2017 challenge.

Speech Synthesis Voice Conversion

Strategy of the Negative Sampling for Training Retrieval-Based Dialogue Systems

no code implementations24 Nov 2018 Aigul Nugmanova, Andrei Smirnov, Galina Lavrentyeva, Irina Chernykh

The results obtained for the implemented systems and reported in this paper confirm the significant improvement of automated dialogue systems quality in case of using the negative responses from transformed distribution.

Retrieval

Deep CNN based feature extractor for text-prompted speaker recognition

no code implementations13 Mar 2018 Sergey Novoselov, Oleg Kudashev, Vadim Schemelinin, Ivan Kremnev, Galina Lavrentyeva

By using multitask learning scheme to train the high-level feature extractor we were able to surpass the classic baseline systems in terms of quality and achieved impressive results for such a novice approach, getting 2. 85% EER on the RSR2015 evaluation set.

Speaker Recognition Speaker Verification

Audio-replay attack detection countermeasures

no code implementations24 May 2017 Galina Lavrentyeva, Sergey Novoselov, Egor Malykh, Alexander Kozlov, Oleg Kudashev, Vadim Shchemelinin

This paper presents the Speech Technology Center (STC) replay attack detection systems proposed for Automatic Speaker Verification Spoofing and Countermeasures Challenge 2017.

Speaker Verification

Anti-spoofing Methods for Automatic SpeakerVerification System

no code implementations24 May 2017 Galina Lavrentyeva, Sergey Novoselov, Konstantin Simonchik

We compared several spoofing detection systems, presented so far, on the development and evaluation datasets of the Automatic SpeakerVerification Spoofing and Countermeasures (ASVspoof) Challenge 2015. Experimental results presented in this paper demonstrate that the useof magnitude and phase information combination provides a substantialinput into the efficiency of the spoofing detection systems.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +2

STC Anti-spoofing Systems for the ASVspoof 2015 Challenge

no code implementations29 Jul 2015 Sergey Novoselov, Alexandr Kozlov, Galina Lavrentyeva, Konstantin Simonchik, Vadim Shchemelinin

This paper presents the Speech Technology Center (STC) systems submitted to Automatic Speaker Verification Spoofing and Countermeasures (ASVspoof) Challenge 2015.

Speaker Verification

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