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The task of speaker change detection (SCD), which detects points where speakers change in an input, is essential for several applications. Several studies solved the SCD task using audio inputs only and have shown limited performance.…

Multi-channel speech separation in dynamic environments is challenging as time-varying spatial and spectral features evolve at different temporal scales. Existing methods typically employ sequential architectures, forcing a single network…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-27 Yuzhu Wang , Archontis Politis , Konstantinos Drossos , Tuomas Virtanen

This work proposes a multichannel speech separation method with narrow-band Conformer (named NBC). The network is trained to learn to automatically exploit narrow-band speech separation information, such as spatial vector clustering of…

Sound · Computer Science 2022-07-04 Changsheng Quan , Xiaofei Li

Recently, there has been growing interest in multi-speaker speech recognition, where the utterances of multiple speakers are recognized from their mixture. Promising techniques have been proposed for this task, but earlier works have…

Sound · Computer Science 2018-05-16 Hiroshi Seki , Takaaki Hori , Shinji Watanabe , Jonathan Le Roux , John R. Hershey

Impressive progress in neural network-based single-channel speech source separation has been made in recent years. But those improvements have been mostly reported on anechoic data, a situation that is hardly met in practice. Taking the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-11 Tobias Cord-Landwehr , Christoph Boeddeker , Thilo von Neumann , Catalin Zorila , Rama Doddipatla , Reinhold Haeb-Umbach

Informed speaker extraction aims to extract a target speech signal from a mixture of sources given prior knowledge about the desired speaker. Recent deep learning-based methods leverage a speaker discriminative model that maps a reference…

Audio and Speech Processing · Electrical Eng. & Systems 2022-02-17 Mohamed Elminshawi , Wolfgang Mack , Emanuël A. P. Habets

This work introduces sequential neural beamforming, which alternates between neural network based spectral separation and beamforming based spatial separation. Our neural networks for separation use an advanced convolutional architecture…

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 rising interest in single-channel multi-speaker speech separation sparked development of End-to-End (E2E) approaches to multi-speaker speech recognition. However, up until now, state-of-the-art neural network-based time domain source…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-14 Thilo von Neumann , Keisuke Kinoshita , Lukas Drude , Christoph Boeddeker , Marc Delcroix , Tomohiro Nakatani , Reinhold Haeb-Umbach

The task of estimating the maximum number of concurrent speakers from single channel mixtures is important for various audio-based applications, such as blind source separation, speaker diarisation, audio surveillance or auditory scene…

Audio and Speech Processing · Electrical Eng. & Systems 2019-11-05 Fabian-Robert Stöter , Soumitro Chakrabarty , Bernd Edler , Emanuël A. P. Habets

We address the problem of acoustic source separation in a deep learning framework we call "deep clustering." Rather than directly estimating signals or masking functions, we train a deep network to produce spectrogram embeddings that are…

Neural and Evolutionary Computing · Computer Science 2015-08-19 John R. Hershey , Zhuo Chen , Jonathan Le Roux , Shinji Watanabe

Target speech separation refers to isolating target speech from a multi-speaker mixture signal by conditioning on auxiliary information about the target speaker. Different from the mainstream audio-visual approaches which usually require…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Leyuan Qu , Cornelius Weber , Stefan Wermter

This paper presents a method of sequence-to-sequence (seq2seq) voice conversion using non-parallel training data. In this method, disentangled linguistic and speaker representations are extracted from acoustic features, and voice conversion…

Audio and Speech Processing · Electrical Eng. & Systems 2020-01-14 Jing-Xuan Zhang , Zhen-Hua Ling , Li-Rong Dai

Separating two sources from an audio mixture is an important task with many applications. It is a challenging problem since only one signal channel is available for analysis. In this paper, we propose a novel framework for singing voice…

Sound · Computer Science 2017-11-15 Zhe-Cheng Fan , Yen-Lin Lai , Jyh-Shing Roger Jang

In recent years, deep learning-based approaches have significantly improved the performance of single-channel speech enhancement. However, due to the limitation of training data and computational complexity, real-time enhancement of…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-16 Zehua Zhang , Lu Zhang , Xuyi Zhuang , Yukun Qian , Heng Li , Mingjiang Wang

While recent progresses in neural network approaches to single-channel speech separation, or more generally the cocktail party problem, achieved significant improvement, their performance for complex mixtures is still not satisfactory. In…

Sound · Computer Science 2018-03-30 Zhuo Chen , Jinyu Li , Xiong Xiao , Takuya Yoshioka , Huaming Wang , Zhenghao Wang , Yifan Gong

Although fully end-to-end speaker diarization systems have made significant progress in recent years, modular systems often achieve superior results in real-world scenarios due to their greater adaptability and robustness. Historically,…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-26 Ruoyu Wang , Shutong Niu , Gaobin Yang , Jun Du , Shuangqing Qian , Tian Gao , Jia Pan

Cocktail party problem is the scenario where it is difficult to separate or distinguish individual speaker from a mixed speech from several speakers. There have been several researches going on in this field but the size and complexity of…

Sound · Computer Science 2026-02-19 S. Rijal , R. Neupane , S. P. Mainali , S. K. Regmi , S. Maharjan

The performance of single channel source separation algorithms has improved greatly in recent times with the development and deployment of neural networks. However, many such networks continue to operate on the magnitude spectrogram of a…

Audio and Speech Processing · Electrical Eng. & Systems 2018-10-08 Shrikant Venkataramani , Paris Smaragdis

Verifying the identity of a speaker is crucial in modern human-machine interfaces, e.g., to ensure privacy protection or to enable biometric authentication. Classical speaker verification (SV) approaches estimate a fixed-dimensional…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-29 Ahmad Aloradi , Wolfgang Mack , Mohamed Elminshawi , Emanuël A. P. Habets