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Self-supervised models such as WavLM have demonstrated strong performance for neural speaker diarization. However, these models are typically pre-trained on single-channel recordings, limiting their effectiveness in multi-channel scenarios.…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-17 Jiangyu Han , Ruoyu Wang , Yoshiki Masuyama , Marc Delcroix , Johan Rohdin , Jun Du , Lukas Burget

Deep neural networks (DNNs) are known for extracting useful information from large amounts of data. However, the representations learned in DNNs are typically hard to interpret, especially in dense layers. One crucial issue of the classical…

Neural and Evolutionary Computing · Computer Science 2021-05-06 Yuyang Gao , Giorgio A. Ascoli , Liang Zhao

The most common approach to speaker diarization is clustering of speaker embeddings. However, the clustering-based approach has a number of problems; i.e., (i) it is not optimized to minimize diarization errors directly, (ii) it cannot…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-09 Yusuke Fujita , Shinji Watanabe , Shota Horiguchi , Yawen Xue , Kenji Nagamatsu

Recently, speaker embeddings extracted from a speaker discriminative deep neural network (DNN) yield better performance than the conventional methods such as i-vector. In most cases, the DNN speaker classifier is trained using cross entropy…

Audio and Speech Processing · Electrical Eng. & Systems 2019-06-19 Xu Xiang , Shuai Wang , Houjun Huang , Yanmin Qian , Kai Yu

Obtaining high-quality speaker embeddings in multi-speaker conditions is crucial for many applications. A recently proposed guided speaker embedding framework, which utilizes speech activities of target and non-target speakers as clues,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-17 Shota Horiguchi , Takanori Ashihara , Marc Delcroix , Atsushi Ando , Naohiro Tawara

Existing speaker diarization systems typically rely on large amounts of manually annotated data, which is labor-intensive and difficult to obtain, especially in real-world scenarios. Additionally, language-specific constraints in these…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-13 Phat Lam , Lam Pham , Truong Nguyen , Dat Ngo , Thinh Pham , Tin Nguyen , Loi Khanh Nguyen , Alexander Schindler

In this paper, we investigate a deep learning approach for speech denoising through an efficient ensemble of specialist neural networks. By splitting up the speech denoising task into non-overlapping subproblems and introducing a…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-11 Aswin Sivaraman , Minje Kim

Recent diarization technologies can be categorized into two approaches, i.e., clustering and end-to-end neural approaches, which have different pros and cons. The clustering-based approaches assign speaker labels to speech regions by…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-08 Keisuke Kinoshita , Marc Delcroix , Naohiro Tawara

In multi-speaker applications is common to have pre-computed models from enrolled speakers. Using these models to identify the instances in which these speakers intervene in a recording is the task of speaker tracking. In this paper, we…

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

Automatic classification of disordered speech can provide an objective tool for identifying the presence and severity of speech impairment. Classification approaches can also help identify hard-to-recognize speech samples to teach ASR…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-09 Subhashini Venugopalan , Joel Shor , Manoj Plakal , Jimmy Tobin , Katrin Tomanek , Jordan R. Green , Michael P. Brenner

The objective of this work is effective speaker diarisation using multi-scale speaker embeddings. Typically, there is a trade-off between the ability to recognise short speaker segments and the discriminative power of the embedding,…

Audio and Speech Processing · Electrical Eng. & Systems 2021-10-11 Youngki Kwon , Hee-Soo Heo , Jee-weon Jung , You Jin Kim , Bong-Jin Lee , Joon Son Chung

This paper describes the speaker diarization system developed for the Multimodal Information-Based Speech Processing (MISP) 2025 Challenge. First, we utilize the Sequence-to-Sequence Neural Diarization (S2SND) framework to generate initial…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-23 Ming Cheng , Fei Su , Cancan Li , Juan Liu , Ming Li

This paper addresses the problem of microphone array generalization for deep-learning-based end-to-end multichannel speech enhancement. We aim to train a unique deep neural network (DNN) potentially performing well on unseen microphone…

Audio and Speech Processing · Electrical Eng. & Systems 2021-07-28 Siyuan Zhang , Xiaofei Li

We propose a novel neural speaker diarization system using memory-aware multi-speaker embedding with sequence-to-sequence architecture (NSD-MS2S), which integrates the strengths of memory-aware multi-speaker embedding (MA-MSE) and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-27 Gaobin Yang , Maokui He , Shutong Niu , Ruoyu Wang , Yanyan Yue , Shuangqing Qian , Shilong Wu , Jun Du , Chin-Hui Lee

A key task for speech recognition systems is to reduce the mismatch between training and evaluation data that is often attributable to speaker differences. Speaker adaptation techniques play a vital role to reduce the mismatch. Model-based…

Sound · Computer Science 2024-06-17 Xurong Xie , Xunying Liu , Tan Lee , Lan Wang

In this paper, we propose a novel neural speaker diarization system using memory-aware multi-speaker embedding with sequence-to-sequence architecture (NSD-MS2S), which integrates a memory-aware multi-speaker embedding module with a…

Sound · Computer Science 2025-06-18 Gaobin Yang , Maokui He , Shutong Niu , Ruoyu Wang , Hang Chen , Jun Du

This paper proposes a low algorithmic latency adaptation of the deep clustering approach to speaker-independent speech separation. It consists of three parts: a) the usage of long-short-term-memory (LSTM) networks instead of their…

Sound · Computer Science 2019-02-20 Shanshan Wang , Gaurav Naithani , Tuomas Virtanen

Speaker recognition deals with recognizing speakers by their speech. Most speaker recognition systems are built upon two stages, the first stage extracts low dimensional correlation embeddings from speech, and the second performs the…

Multilayer bootstrap network builds a gradually narrowed multilayer nonlinear network from bottom up for unsupervised nonlinear dimensionality reduction. Each layer of the network is a nonparametric density estimator. It consists of a group…

Machine Learning · Computer Science 2018-03-07 Xiao-Lei Zhang