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Reinforcement learning based post-training paradigms for Video Large Language Models (VideoLLMs) have achieved significant success by optimizing for visual-semantic tasks such as captioning or VideoQA. However, while these approaches…

Computer Vision and Pattern Recognition · Computer Science 2026-01-08 Xiaokun Sun , Zezhong Wu , Zewen Ding , Linli Xu

Standard probabilistic linear discriminant analysis (PLDA) for speaker recognition assumes that the sample's features (usually, i-vectors) are given by a sum of three terms: a term that depends on the speaker identity, a term that models…

Machine Learning · Computer Science 2018-01-17 Luciana Ferrer

In this work, a novel solution to the speaker identification problem is proposed through minimization of statistical divergences between the probability distribution (g). of feature vectors from the test utterance and the probability…

Machine Learning · Statistics 2015-12-17 Ayanendranath Basu , Smarajit Bose , Amita Pal , Anish Mukherjee , Debasmita Das

Developing a good speaker embedding has received tremendous interest in the speech community, with representations such as i-vector and d-vector demonstrating remarkable performance across various tasks. Despite their widespread adoption, a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-23 Shuai Wang , Yanmin Qian , Kai Yu

Speaker verification aims to verify whether an input speech corresponds to the claimed speaker, and conventionally, this kind of system is deployed based on single-stream scenario, wherein the feature extractor operates in full frequency…

Sound · Computer Science 2025-09-03 Wei Yao , Shen Chen , Jiamin Cui , Yaolin Lou

Speaker diarisation systems often cluster audio segments using speaker embeddings such as i-vectors and d-vectors. Since different types of embeddings are often complementary, this paper proposes a generic framework to improve performance…

Computation and Language · Computer Science 2019-02-11 Guangzhi Sun , Chao Zhang , Phil Woodland

We present a transformer-based architecture for voice separation of a target speaker from multiple other speakers and ambient noise. We achieve this by using two separate neural networks: (A) An enrolment network designed to craft…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-03 Akam Rahimi , Triantafyllos Afouras , Andrew Zisserman

The promising performance of Deep Learning (DL) in speech recognition has motivated the use of DL in other speech technology applications such as speaker recognition. Given i-vectors as inputs, the authors proposed an impostor selection…

Sound · Computer Science 2017-04-24 Omid Ghahabi , Javier Hernando

Most state-of-the-art Deep Learning systems for speaker verification are based on speaker embedding extractors. These architectures are commonly composed of a feature extractor front-end together with a pooling layer to encode…

Audio and Speech Processing · Electrical Eng. & Systems 2021-01-12 Miquel India , Pooyan Safari , Javier Hernando

Spoken language recognition (SLR) refers to the automatic process used to determine the language present in a speech sample. SLR is an important task in its own right, for example, as a tool to analyze or categorize large amounts of…

Computation and Language · Computer Science 2022-08-15 Luciana Ferrer , Diego Castan , Mitchell McLaren , Aaron Lawson

This paper explores two techniques to improve the performance of text-dependent speaker verification systems based on deep neural networks. Firstly, we propose a general alignment mechanism to keep the temporal structure of each phrase and…

Sound · Computer Science 2019-05-01 Victoria Mingote , Antonio Miguel , Alfonso Ortega , Eduardo Lleida

This paper explores how the in- and out-domain probabilistic linear discriminant analysis (PLDA) speaker verification behave when enrolment and verification lengths are reduced. Experiment studies have found that when full-length utterance…

Sound · Computer Science 2016-10-12 Ahilan Kanagasundaram , David Dean , Sridha Sridharan , Clinton Fookes

We propose SpeakerNet - a new neural architecture for speaker recognition and speaker verification tasks. It is composed of residual blocks with 1D depth-wise separable convolutions, batch-normalization, and ReLU layers. This architecture…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-27 Nithin Rao Koluguri , Jason Li , Vitaly Lavrukhin , Boris Ginsburg

Recently, speaker embeddings extracted with deep neural networks became the state-of-the-art method for speaker verification. In this paper we aim to facilitate its implementation on a more generic toolkit than Kaldi, which we anticipate to…

Sound · Computer Science 2018-11-07 Hossein Zeinali , Lukas Burget , Johan Rohdin , Themos Stafylakis , Jan Cernocky

In this work, we continue in our research on i-vector extractor for speaker verification (SV) and we optimize its architecture for fast and effective discriminative training. We were motivated by computational and memory requirements caused…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-10 Ondrej Novotny , Oldrich Plchot , Ondrej Glembek , Lukas Burget

In this paper we present a new method for text-independent speaker verification that combines segmental dynamic time warping (SDTW) and the d-vector approach. The d-vectors, generated from a feed forward deep neural network trained to…

Sound · Computer Science 2018-06-27 Mohamed Adel , Mohamed Afify , Akram Gaballah

The popular i-vector model represents speakers as low-dimensional continuous vectors (i-vectors), and hence it is a way of continuous speaker embedding. In this paper, we investigate binary speaker embedding, which transforms i-vectors to…

Sound · Computer Science 2016-04-01 Lantian Li , Dong Wang , Chao Xing , Kaimin Yu , Thomas Fang Zheng

This paper proposes a human-in-the-loop speaker-adaptation method for multi-speaker text-to-speech. With a conventional speaker-adaptation method, a target speaker's embedding vector is extracted from his/her reference speech using a…

Sound · Computer Science 2022-06-22 Kenta Udagawa , Yuki Saito , Hiroshi Saruwatari

The front-end factor analysis (FEFA), an extension of principal component analysis (PPCA) tailored to be used with Gaussian mixture models (GMMs), is currently the prevalent approach to extract compact utterance-level features (i-vectors)…

Audio and Speech Processing · Electrical Eng. & Systems 2018-05-04 Ville Vestman , Tomi Kinnunen

In recent years, the rapid progress in speaker verification (SV) technology has been driven by the extraction of speaker representations based on deep learning. However, such representations are still vulnerable to emotion variability. To…

Sound · Computer Science 2025-05-27 Jingguang Tian , Xinhui Hu , Xinkang Xu