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We propose a novel speech separation model designed to separate mixtures with an unknown number of speakers. The proposed model stacks 1) a dual-path processing block that can model spectro-temporal patterns, 2) a transformer decoder-based…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-24 Younglo Lee , Shukjae Choi , Byeong-Yeol Kim , Zhong-Qiu Wang , Shinji Watanabe

This work proposes a frame-wise online/streaming end-to-end neural diarization (FS-EEND) method in a frame-in-frame-out fashion. To frame-wisely detect a flexible number of speakers and extract/update their corresponding attractors, we…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-26 Di Liang , Nian Shao , Xiaofei Li

Speaker diarization is usually referred to as the task that determines ``who spoke when'' in a recording. Until a few years ago, all competitive approaches were modular. Systems based on this framework reached state-of-the-art performance…

Audio and Speech Processing · Electrical Eng. & Systems 2024-07-15 Federico Landini

We performed an experimental review of current diarization systems for the conversational telephone speech (CTS) domain. In detail, we considered a total of eight different algorithms belonging to clustering-based, end-to-end neural…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-30 Luca Serafini , Samuele Cornell , Giovanni Morrone , Enrico Zovato , Alessio Brutti , Stefano Squartini

One of the most popular speaker embeddings is x-vectors, which are obtained from an architecture that gradually builds a larger temporal context with layers. In this paper, we propose to derive speaker embeddings from Transformer's encoder…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-14 N J Metilda Sagaya Mary , S Umesh , Sandesh V Katta

In this paper, we present a conditional multitask learning method for end-to-end neural speaker diarization (EEND). The EEND system has shown promising performance compared with traditional clustering-based methods, especially in the case…

Audio and Speech Processing · Electrical Eng. & Systems 2021-06-09 Yuki Takashima , Yusuke Fujita , Shinji Watanabe , Shota Horiguchi , Paola García , Kenji Nagamatsu

We propose a streaming diarization method based on an end-to-end neural diarization (EEND) model, which handles flexible numbers of speakers and overlapping speech. In our previous study, the speaker-tracing buffer (STB) mechanism was…

In recent years, there have been studies to further improve the end-to-end neural speaker diarization (EEND) systems. This letter proposes the EEND-DEMUX model, a novel framework utilizing demultiplexed speaker embeddings. In this work, we…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-12 Sung Hwan Mun , Min Hyun Han , Canyeong Moon , Nam Soo Kim

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

A joint speech and text optimization method is proposed for hybrid transducer and attention-based encoder decoder (TAED) modeling to leverage large amounts of text corpus and enhance ASR accuracy. The joint TAED (J-TAED) is trained with…

Computation and Language · Computer Science 2025-06-25 Yun Tang , Eesung Kim , Vijendra Raj Apsingekar

We present an Encoder-Decoder Attention Transformer, EDAFormer, which consists of the Embedding-Free Transformer (EFT) encoder and the all-attention decoder leveraging our Embedding-Free Attention (EFA) structure. The proposed EFA is a…

Computer Vision and Pattern Recognition · Computer Science 2024-07-25 Hyunwoo Yu , Yubin Cho , Beoungwoo Kang , Seunghun Moon , Kyeongbo Kong , Suk-Ju Kang

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

End-to-end transformer-based automatic speech recognition (ASR) systems often capture multiple speech traits in their learned representations that are highly entangled, leading to a lack of interpretability. In this study, we propose the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-11-28 Pu Wang , Hugo Van hamme

Transformers have been the dominant architecture for Speech Translation in recent years, achieving significant improvements in translation quality. Since speech signals are longer than their textual counterparts, and due to the quadratic…

Computation and Language · Computer Science 2023-03-15 Ioannis Tsiamas , Gerard I. Gállego , José A. R. Fonollosa , Marta R. Costa-jussà

This paper proposes a novel online speaker diarization algorithm based on a fully supervised self-attention mechanism (SA-EEND). Online diarization inherently presents a speaker's permutation problem due to the possibility to assign speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-09 Yawen Xue , Shota Horiguchi , Yusuke Fujita , Shinji Watanabe , Kenji Nagamatsu

This paper investigates a method for simulating natural conversation in the model training of end-to-end neural diarization (EEND). Due to the lack of any annotated real conversational dataset, EEND is usually pretrained on a large-scale…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-26 Natsuo Yamashita , Shota Horiguchi , Takeshi Homma

Decomposing Electrodermal Activity (EDA) into phasic (short-term, stimulus-linked responses) and tonic (longer-term baseline) components is essential for extracting meaningful emotional and physiological biomarkers. This study presents a…

Signal Processing · Electrical Eng. & Systems 2025-06-10 Charalampos Tsirmpas , Stasinos Konstantopoulos , Dimitris Andrikopoulos , Konstantina Kyriakouli , Panagiotis Fatouros

We introduce a self-supervised speech pre-training method called TERA, which stands for Transformer Encoder Representations from Alteration. Recent approaches often learn by using a single auxiliary task like contrastive prediction,…

Audio and Speech Processing · Electrical Eng. & Systems 2021-08-05 Andy T. Liu , Shang-Wen Li , Hung-yi Lee

End-to-end speaker diarization approaches have shown exceptional performance over the traditional modular approaches. To further improve the performance of the end-to-end speaker diarization for real speech recordings, recently works have…

Sound · Computer Science 2022-04-19 Chenyu Yang , Yu Wang

We present improvements to speaker diarization in the two-stage end-to-end neural diarization with vector clustering (EEND-VC) framework. The first stage employs a Conformer-based EEND model with WavLM features to infer frame-level speaker…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-23 Petr Pálka , Jiangyu Han , Marc Delcroix , Naohiro Tawara , Lukáš Burget