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In this paper, we propose "personal VAD", a system to detect the voice activity of a target speaker at the frame level. This system is useful for gating the inputs to a streaming on-device speech recognition system, such that it only…

Audio and Speech Processing · Electrical Eng. & Systems 2020-04-09 Shaojin Ding , Quan Wang , Shuo-yiin Chang , Li Wan , Ignacio Lopez Moreno

The recording of respiratory sounds was of significant benefit in the diagnosis of abnormalities in respiratory sounds. The duration of the sounds used in the diagnosis affects the speed of the diagnosis. In this study, the effect of window…

Sound · Computer Science 2021-01-22 Osman Balli , Yakup Kutlu

Robust Voice Activity Detection (VAD) remains a challenging task, especially under noisy, diverse, and unseen acoustic conditions. Beyond algorithmic development, a key limitation in advancing VAD research is the lack of large-scale,…

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

Voice activity detection (VAD), which classifies frames as speech or non-speech, is an important module in many speech applications including speaker verification. In this paper, we propose a novel method, called self-adaptive soft VAD, to…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-25 Youngmoon Jung , Yeunju Choi , Hoirin Kim

This paper presents a new hybrid architecture for voice activity detection (VAD) incorporating both convolutional neural network (CNN) and bidirectional long short-term memory (BiLSTM) layers trained in an end-to-end manner. In addition, we…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-08 Nicholas Wilkinson , Thomas Niesler

Robust voice activity detection (VAD) is a challenging task in low signal-to-noise (SNR) environments. Recent studies show that speech enhancement is helpful to VAD, but the performance improvement is limited. To address this issue, here we…

Audio and Speech Processing · Electrical Eng. & Systems 2021-04-14 Xu Tan , Xiao-Lei Zhang

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

Voice Activity Detection (VAD) is an important pre-processing step in a wide variety of speech processing systems. VAD should in a practical application be able to detect speech in both noisy and noise-free environments, while not…

Audio and Speech Processing · Electrical Eng. & Systems 2022-07-06 Claus Meyer Larsen , Peter Koch , Zheng-Hua Tan

Speech applications are expected to be low-power and robust under noisy conditions. An effective Voice Activity Detection (VAD) front-end lowers the computational need. Spiking Neural Networks (SNNs) are known to be biologically plausible…

Sound · Computer Science 2024-03-12 Qu Yang , Qianhui Liu , Nan Li , Meng Ge , Zeyang Song , Haizhou Li

Voice Activity Detection (VAD) is the process of automatically determining whether a person is speaking and identifying the timing of their speech in an audiovisual data. Traditionally, this task has been tackled by processing either audio…

Computer Vision and Pattern Recognition · Computer Science 2024-10-21 Andrea Appiani , Cigdem Beyan

Voice activity detection is an essential pre-processing component for speech-related tasks such as automatic speech recognition (ASR). Traditional supervised VAD systems obtain frame-level labels from an ASR pipeline by using, e.g., a…

Sound · Computer Science 2021-05-11 Heinrich Dinkel , Shuai Wang , Xuenan Xu , Mengyue Wu , Kai Yu

In this paper we demonstrate that performance of voice activity detection (VAD) system operating in presence of background noise can be improved by concatenating acoustic input features with electroencephalography (EEG) features. We also…

Sound · Computer Science 2020-03-18 Gautam Krishna , Co Tran , Mason Carnahan , Yan Han , Ahmed H Tewfik

Speaker diarization, the process of identifying "who spoke when" in audio recordings, is essential for understanding classroom dynamics. However, classroom settings present distinct challenges, including poor recording quality, high levels…

Sound · Computer Science 2025-05-28 Ali Sartaz Khan , Tolulope Ogunremi , Ahmed Adel Attia , Dorottya Demszky

Speech Activity Detection (SAD) systems often misclassify singing as speech, leading to degraded performance in applications such as dialogue enhancement and automatic speech recognition. We introduce Singing-Robust Speech Activity…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-11 Philipp Grundhuber , Mhd Modar Halimeh , Martin Strauß , Emanuël A. P. Habets

Action recognition is a crucial task in artificial intelligence, with significant implications across various domains. We initially perform a comprehensive analysis of seven prominent action recognition methods across five widely-used…

Computer Vision and Pattern Recognition · Computer Science 2025-03-17 Jiangning Wei , Lixiong Qin , Bo Yu , Tianjian Zou , Chuhan Yan , Dandan Xiao , Yang Yu , Lan Yang , Ke Li , Jun Liu

Video saliency detection (VSD) aims at fast locating the most attractive objects/things/patterns in a given video clip. Existing VSD-related works have mainly relied on the visual system but paid less attention to the audio aspect, while,…

Computer Vision and Pattern Recognition · Computer Science 2022-06-28 Chenglizhao Chen , Mengke Song , Wenfeng Song , Li Guo , Muwei Jian

Voice Activity Detection (VAD) is not easy task when the input audio signal is noisy, and it is even more complicated when the input is not even an audio recording. This is the case with Silent Speech Interfaces (SSI) where we record the…

Sound · Computer Science 2021-09-21 Amin Honarmandi Shandiz , László Tóth

Under noisy conditions, automatic speech recognition (ASR) can greatly benefit from the addition of visual signals coming from a video of the speaker's face. However, when multiple candidate speakers are visible this traditionally requires…

Audio and Speech Processing · Electrical Eng. & Systems 2022-05-12 Otavio Braga , Olivier Siohan

Voice Activity Detection (VAD) plays a key role in speech processing, often utilizing hand-crafted or neural features. This study examines the effectiveness of Mel-Frequency Cepstral Coefficients (MFCCs) and pre-trained model (PTM)…

Sound · Computer Science 2025-06-03 Kumud Tripathi , Chowdam Venkata Kumar , Pankaj Wasnik