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Bayesian HMM clustering of x-vector sequences (VBx) has become a widely adopted diarization baseline model in publications and challenges. It uses an HMM to model speaker turns, a generatively trained probabilistic linear discriminant…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-05 Dominik Klement , Mireia Diez , Federico Landini , Lukáš Burget , Anna Silnova , Marc Delcroix , Naohiro Tawara

Deep speaker embedding models have been commonly used as a building block for speaker diarization systems; however, the speaker embedding model is usually trained according to a global loss defined on the training data, which could be…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-26 Jixuan Wang , Xiong Xiao , Jian Wu , Ranjani Ramamurthy , Frank Rudzicz , Michael Brudno

Overlapping speech diarization is always treated as a multi-label classification problem. In this paper, we reformulate this task as a single-label prediction problem by encoding the multi-speaker labels with power set. Specifically, we…

Sound · Computer Science 2021-11-30 Zhihao Du , Shiliang Zhang , Siqi Zheng , Weilong Huang , Ming Lei

End-to-end neural diarization (EEND) models offer significant improvements over traditional embedding-based Speaker Diarization (SD) approaches but falls short on generalizing to long-form audio with large number of speakers.…

Audio and Speech Processing · Electrical Eng. & Systems 2024-06-28 Xiang Li , Vivek Govindan , Rohit Paturi , Sundararajan Srinivasan

Automatic speaker verification task has made great achievements using deep learning approaches with the large-scale manually annotated dataset. However, it's very difficult and expensive to collect a large amount of well-labeled data for…

Sound · Computer Science 2023-04-13 Bing Han , Zhengyang Chen , Yanmin Qian

Speaker clustering is an essential step in conventional speaker diarization systems and is typically addressed as an audio-only speech processing task. The language used by the participants in a conversation, however, carries additional…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-12 Nikolaos Flemotomos , Shrikanth Narayanan

End-to-end neural speaker diarization systems are able to address the speaker diarization task while effectively handling speech overlap. This work explores the incorporation of speaker information embeddings into the end-to-end systems to…

Sound · Computer Science 2024-07-02 Juan Ignacio Alvarez-Trejos , Beltrán Labrador , Alicia Lozano-Diez

Our focus lies in developing an online speaker diarisation framework which demonstrates robust performance across diverse domains. In online speaker diarisation, outputs generated in real-time are irreversible, and a few misjudgements in…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-10 Youngki Kwon , Hee-Soo Heo , Bong-Jin Lee , You Jin Kim , Jee-weon Jung

Recently, hybrid systems of clustering and neural diarization models have been successfully applied in multi-party meeting analysis. However, current models always treat overlapped speaker diarization as a multi-label classification…

Sound · Computer Science 2022-11-21 Zhihao Du , Shiliang Zhang , Siqi Zheng , Zhijie Yan

Speaker diarization has been mainly developed based on the clustering of speaker embeddings. However, the clustering-based approach has two major problems; i.e., (i) it is not optimized to minimize diarization errors directly, and (ii) it…

Audio and Speech Processing · Electrical Eng. & Systems 2019-09-16 Yusuke Fujita , Naoyuki Kanda , Shota Horiguchi , Yawen Xue , Kenji Nagamatsu , Shinji Watanabe

Neural speaker diarization is widely used for overlap-aware speaker diarization, but it requires large multi-speaker datasets for training. To meet this data requirement, large datasets are often constructed by combining multiple corpora,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-26 Shota Horiguchi , Naohiro Tawara , Takanori Ashihara , Atsushi Ando , Marc Delcroix

Overlapping speech diarization has been traditionally treated as a multi-label classification problem. In this paper, we reformulate this task as a single-label prediction problem by encoding multiple binary labels into a single label with…

Sound · Computer Science 2022-04-01 Zhihao Du , Shiliang Zhang , Siqi Zheng , Zhijie Yan

Recent speaker diarization studies showed that integration of end-to-end neural diarization (EEND) and clustering-based diarization is a promising approach for achieving state-of-the-art performance on various tasks. Such an approach first…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-29 Keisuke Kinoshita , Thilo von Neumann , Marc Delcroix , Christoph Boeddeker , Reinhold Haeb-Umbach

Utilizing the large-scale unlabeled data from the target domain via pseudo-label clustering algorithms is an important approach for addressing domain adaptation problems in speaker verification tasks. In this paper, we propose a novel…

Sound · Computer Science 2023-05-23 Zhuo Li , Jingze Lu , Zhenduo Zhao , Wenchao Wang , Pengyuan Zhang

Traditional speech separation and speaker diarization approaches rely on prior knowledge of target speakers or a predetermined number of participants in audio signals. To address these limitations, recent advances focus on developing…

End-to-end speaker diarization enables accurate overlap-aware diarization by jointly estimating multiple speakers' speech activities in parallel. This approach is data-hungry, requiring a large amount of labeled conversational data, which…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-02 Shota Horiguchi , Atsushi Ando , Marc Delcroix , Naohiro Tawara

We propose to address online speaker diarization as a combination of incremental clustering and local diarization applied to a rolling buffer updated every 500ms. Every single step of the proposed pipeline is designed to take full advantage…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-15 Juan M. Coria , Hervé Bredin , Sahar Ghannay , Sophie Rosset

State-of-the-art approaches for clustering high-dimensional data utilize deep auto-encoder architectures. Many of these networks require a large number of parameters and suffer from a lack of interpretability, due to the black-box nature of…

Machine Learning · Computer Science 2022-02-28 Alexander Lin , Andrew H. Song , Demba Ba

This paper proposes attentive statistics pooling for deep speaker embedding in text-independent speaker verification. In conventional speaker embedding, frame-level features are averaged over all the frames of a single utterance to form an…

Audio and Speech Processing · Electrical Eng. & Systems 2019-02-27 Koji Okabe , Takafumi Koshinaka , Koichi Shinoda

Previous works have shown that spatial location information can be complementary to speaker embeddings for a speaker diarisation task. However, the models used often assume that speakers are fairly stationary throughout a meeting. This…

Machine Learning · Computer Science 2021-09-27 Jeremy H. M. Wong , Igor Abramovski , Xiong Xiao , Yifan Gong