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Spoken keyword spotting (KWS) aims to identify keywords in audio for wide applications, especially on edge devices. Current small-footprint KWS systems focus on efficient model designs. However, their inference performance can decline in…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-21 Yang Xiao , Tianyi Peng , Yanghao Zhou , Rohan Kumar Das

Keyword spotting (KWS) is experiencing an upswing due to the pervasiveness of small electronic devices that allow interaction with them via speech. Often, KWS systems are speaker-independent, which means that any person --user or not--…

Sound · Computer Science 2019-06-27 Iván López-Espejo , Zheng-Hua Tan , Jesper Jensen

This paper addresses the persistent challenge in Keyword Spotting (KWS), a fundamental component in speech technology, regarding the acquisition of substantial labeled data for training. Given the difficulty in obtaining large quantities of…

Sound · Computer Science 2024-09-04 Weinan Dai , Yifeng Jiang , Yuanjing Liu , Jinkun Chen , Xin Sun , Jinglei Tao

Open-vocabulary keyword spotting (KWS), which allows users to customize keywords, has attracted increasingly more interest. However, existing methods based on acoustic models and post-processing train the acoustic model with ASR training…

Audio and Speech Processing · Electrical Eng. & Systems 2023-12-18 Ao Zhang , Pan Zhou , Kaixun Huang , Yong Zou , Ming Liu , Lei Xie

Spoken Keyword Spotting (KWS) is the task of distinguishing between the presence and absence of a keyword in audio. The accuracy of a KWS model hinges on its ability to correctly classify examples close to the keyword and non-keyword…

Sound · Computer Science 2026-02-06 Harry Zhang , Kurt Partridge , Pai Zhu , Neng Chen , Hyun Jin Park , Dhruuv Agarwal , Quan Wang

Accurate on-device keyword spotting (KWS) with low false accept and false reject rate is crucial to customer experience for far-field voice control of conversational agents. It is particularly challenging to maintain low false reject rate…

Computation and Language · Computer Science 2018-08-03 Anirudh Raju , Sankaran Panchapagesan , Xing Liu , Arindam Mandal , Nikko Strom

Non-invasive brain-computer interfaces (BCIs) are beginning to benefit from large, public benchmarks. However, current benchmarks target relatively simple, foundational tasks like Speech Detection and Phoneme Classification, while…

Machine Learning · Computer Science 2025-10-31 Gereon Elvers , Gilad Landau , Oiwi Parker Jones

Conversational agents commonly utilize keyword spotting (KWS) to initiate voice interaction with the user. For user experience and privacy considerations, existing approaches to KWS largely focus on accuracy, which can often come at the…

Audio and Speech Processing · Electrical Eng. & Systems 2022-09-30 Christin Jose , Joseph Wang , Grant P. Strimel , Mohammad Omar Khursheed , Yuriy Mishchenko , Brian Kulis

Keyword spotting (KWS) is a crucial function enabling the interaction with the many ubiquitous smart devices in our surroundings, either activating them through wake-word or directly as a human-computer interface. For many applications, KWS…

This article presents a method for improving a keyword spotter (KWS) algorithm in noisy environments. Although beamforming (BF) and adaptive noise cancellation (ANC) techniques are robust in some conditions, they may degrade the performance…

In this paper, we propose a multilingual query-by-example keyword spotting (KWS) system based on a residual neural network. The model is trained as a classifier on a multilingual keyword dataset extracted from Common Voice sentences and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-04-20 Paul M. Reuter , Christian Rollwage , Bernd T. Meyer

Spoken keyword spotting (KWS) deals with the identification of keywords in audio streams and has become a fast-growing technology thanks to the paradigm shift introduced by deep learning a few years ago. This has allowed the rapid embedding…

Sound · Computer Science 2021-11-23 Iván López-Espejo , Zheng-Hua Tan , John Hansen , Jesper Jensen

Keyword spotting (KWS) is a key component of smart devices, enabling efficient and intuitive audio interaction. However, standard KWS systems deployed on embedded devices often suffer performance degradation under real-world operating…

With the increasing prevalence of voice-activated devices and applications, keyword spotting (KWS) models enable users to interact with technology hands-free, enhancing convenience and accessibility in various contexts. Deploying KWS models…

Audio and Speech Processing · Electrical Eng. & Systems 2025-04-29 Jonathan Svirsky , Uri Shaham , Ofir Lindenbaum

The performance of keyword spotting (KWS), measured in false alarms and false rejects, degrades significantly under the far field and noisy conditions. In this paper, we propose a multi-look neural network modeling for speech enhancement…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-22 Meng Yu , Xuan Ji , Bo Wu , Dan Su , Dong Yu

This paper proposes a self-learning method to incrementally train (fine-tune) a personalized Keyword Spotting (KWS) model after the deployment on ultra-low power smart audio sensors. We address the fundamental problem of the absence of…

Sound · Computer Science 2025-03-10 Manuele Rusci , Francesco Paci , Marco Fariselli , Eric Flamand , Tinne Tuytelaars

Detecting occurrences of keywords with keyword spotting (KWS) systems requires thresholding continuous detection scores. Selecting appropriate thresholds is a non-trivial task, typically relying on optimizing performance on a validation…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-23 Kevin Wilkinghoff , Alessia Cornaggia-Urrigshardt , Zheng-Hua Tan

Keyword spotting (KWS) has been widely used in various speech control scenarios. The training of KWS is usually based on deep neural networks and requires a large amount of data. Manufacturers often use third-party data to train KWS.…

Sound · Computer Science 2022-11-17 Hanbo Cai , Pengcheng Zhang , Hai Dong , Yan Xiao , Shunhui Ji

Spoken keyword spotting (KWS) is crucial for identifying keywords within audio inputs and is widely used in applications like Apple Siri and Google Home, particularly on edge devices. Current deep learning-based KWS systems, which are…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-14 Tianyi Peng , Yang Xiao

Keyword spotting (KWS) plays an essential role in enabling speech-based user interaction on smart devices, and conventional KWS (C-KWS) approaches have concentrated on detecting user-agnostic pre-defined keywords. However, in practice, most…

Sound · Computer Science 2022-06-29 Seunghan Yang , Byeonggeun Kim , Inseop Chung , Simyung Chang
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