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Voice Activity Detection (VAD) aims at detecting speech segments on an audio signal, which is a necessary first step for many today's speech based applications. Current state-of-the-art methods focus on training a neural network exploiting…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-23 Sina Alisamir , Fabien Ringeval , Francois Portet

For speech interaction, voice activity detection (VAD) is often used as a front-end. However, traditional VAD algorithms usually need to wait for a continuous tail silence to reach a preset maximum duration before segmentation, resulting in…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-23 Mohan Shi , Yuchun Shu , Lingyun Zuo , Qian Chen , Shiliang Zhang , Jie Zhang , Li-Rong Dai

Speech activity detection (SAD) plays an important role in current speech processing systems, including automatic speech recognition (ASR). SAD is particularly difficult in environments with acoustic noise. A practical solution is to…

Computation and Language · Computer Science 2023-05-15 Fei Tao , Carlos Busso

Active speaker detection (ASD) is a multi-modal task that aims to identify who, if anyone, is speaking from a set of candidates. Current audio-visual approaches for ASD typically rely on visually pre-extracted face tracks (sequences of…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-08 Davide Berghi , Adrian Hilton , Philip J. B. Jackson

Voice Activity Detection (VAD) refers to the task of identification of regions of human speech in digital signals such as audio and video. While VAD is a necessary first step in many speech processing systems, it poses challenges when there…

Machine Learning · Computer Science 2020-08-24 Arnab Kumar Mondal , Prathosh A. P

In this work we present a novel single-channel Voice Activity Detector (VAD) approach. We utilize a Convolutional Neural Network (CNN) which exploits the spatial information of the noisy input spectrum to extract frame-wise embedding…

Sound · Computer Science 2022-03-08 Amit Sofer , Shlomo E. Chazan

Mismatching problem between the source and target noisy corpora severely hinder the practical use of the machine-learning-based voice activity detection (VAD). In this paper, we try to address this problem in the transfer learning…

Machine Learning · Computer Science 2013-03-11 Xiao-Lei Zhang , Ji Wu

Personalization of on-device speech recognition (ASR) has seen explosive growth in recent years, largely due to the increasing popularity of personal assistant features on mobile devices and smart home speakers. In this work, we present…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-28 Shaojin Ding , Rajeev Rikhye , Qiao Liang , Yanzhang He , Quan Wang , Arun Narayanan , Tom O'Malley , Ian McGraw

Voice Activity Detection (VAD) is a fundamental preprocessing step in automatic speech recognition. This is especially true within the broadcast industry where a wide variety of audio materials and recording conditions are encountered.…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-10 Misa Ogura , Matt Haynes

Due to the superior modeling ability of deep neural network (DNN), it is widely used in voice activity detection (VAD). However, the performance may degrade if no sufficient data especially for practical data could be used for training,…

Sound · Computer Science 2020-05-19 Lu Ma , Xiaomeng Zhang , Pei Zhao , Tengrong Su

Voice activity detection (VAD) is essential for speech-driven applications, but remains far from perfect in noisy and resource-limited environments. Existing methods often lack robustness to noise, and their frame-wise classification losses…

Sound · Computer Science 2025-08-29 Chien-Chun Wang , En-Lun Yu , Jeih-Weih Hung , Shih-Chieh Huang , Berlin Chen

Voice activity detection (VAD) makes a distinction between speech and non-speech and its performance is of crucial importance for speech based services. Recently, deep neural network (DNN)-based VADs have achieved better performance than…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-14 Zhenpeng Zheng , Jianzong Wang , Ning Cheng , Jian Luo , Jing Xiao

Recent advances in Visual Anomaly Detection (VAD) have introduced sophisticated algorithms leveraging embeddings generated by pre-trained feature extractors. Inspired by these developments, we investigate the adaptation of such algorithms…

Voice activity detection (VAD) is an important pre-processing step for speech technology applications. The task consists of deriving segment boundaries of audio signals which contain voicing information. In recent years, it has been shown…

Audio and Speech Processing · Electrical Eng. & Systems 2023-03-28 Eklavya Sarkar , RaviShankar Prasad , Mathew Magimai. -Doss

Voice activity detection (VAD) remains a challenge in noisy environments. With access to multiple microphones, prior studies have attempted to improve the noise robustness of VAD by creating multi-channel VAD (MVAD) methods. However, MVAD…

Voice Activity Detection (VAD) is a fundamental module in many audio applications. Recent state-of-the-art VAD systems are often based on neural networks, but they require a computational budget that usually exceeds the capabilities of a…

Audio and Speech Processing · Electrical Eng. & Systems 2022-12-07 Niccolo' Polvani , Damien Ronssin , Milos Cernak

Speech activity detection (SAD), which often rests on the fact that the noise is "more" stationary than speech, is particularly challenging in non-stationary environments, because the time variance of the acoustic scene makes it difficult…

Audio and Speech Processing · Electrical Eng. & Systems 2020-07-29 Jens Heitkaemper , Joerg Schmalenstroeer , Reinhold Haeb-Umbach

In a speech recognition system, voice activity detection (VAD) is a crucial frontend module. Addressing the issues of poor noise robustness in traditional binary VAD systems based on DFSMN, the paper further proposes semantic VAD based on…

Sound · Computer Science 2023-12-25 Lingyun Zuo , Keyu An , Shiliang Zhang , Zhijie Yan

Voice timbre attribute detection (vTAD) is the task of determining the relative intensity of timbre attributes between speech utterances. Voice timbre is a crucial yet inherently complex component of speech perception. While deep neural…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-06 Aemon Yat Fei Chiu , Yujia Xiao , Qiuqiang Kong , Tan Lee

We present a novel personalized voice activity detection (PVAD) learning method that does not require enrollment data during training. PVAD is a task to detect the speech segments of a specific target speaker at the frame level using…