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Keyword spotting (KWS) has become an indispensable part of many intelligent devices surrounding us, as audio is one of the most efficient ways of interacting with these devices. The accuracy and performance of KWS solutions have been the…

Sound · Computer Science 2021-11-10 Mehmet Gorkem Ulkar , Osman Erman Okman

In this paper, we propose a sequence-to-sequence model for keyword spotting (KWS). Compared with other end-to-end architectures for KWS, our model simplifies the pipelines of production-quality KWS system and satisfies the requirement of…

Sound · Computer Science 2018-11-02 Haitong Zhang , Junbo Zhang , Yujun Wang

We explore a keyword-based spoken language understanding system, in which the intent of the user can directly be derived from the detection of a sequence of keywords in the query. In this paper, we focus on an open-vocabulary keyword…

Computation and Language · Computer Science 2020-02-26 Théodore Bluche , Maël Primet , Thibault Gisselbrecht

Small footprint embedded devices require keyword spotters (KWS) with small model size and detection latency for enabling voice assistants. Such a keyword is often referred to as \textit{wake word} as it is used to wake up voice assistant…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-16 Christin Jose , Yuriy Mishchenko , Thibaud Senechal , Anish Shah , Alex Escott , Shiv Vitaladevuni

Keyword spotting (KWS) is an important technique for speech applications, which enables users to activate devices by speaking a keyword phrase. Although a phoneme classifier can be used for KWS, exploiting a large amount of transcribed data…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-23 Takuya Higuchi , Anmol Gupta , Chandra Dhir

This paper proposes a Sub-band Convolutional Neural Network for spoken term classification. Convolutional neural networks (CNNs) have proven to be very effective in acoustic applications such as spoken term classification, keyword spotting,…

Audio and Speech Processing · Electrical Eng. & Systems 2019-07-03 Chieh-Chi Kao , Ming Sun , Yixin Gao , Shiv Vitaladevuni , Chao Wang

This paper explores the use of TTS synthesized training data for KWS (keyword spotting) task while minimizing development cost and time. Keyword spotting models require a huge amount of training data to be accurate, and obtaining such…

Keyword spotting is an important research field because it plays a key role in device wake-up and user interaction on smart devices. However, it is challenging to minimize errors while operating efficiently in devices with limited resources…

Sound · Computer Science 2023-07-06 Byeonggeun Kim , Simyung Chang , Jinkyu Lee , Dooyong Sung

As advancements in technologies like Internet of Things (IoT), Automatic Speech Recognition (ASR), Speaker Verification (SV), and Text-to-Speech (TTS) lead to increased usage of intelligent voice assistants, the demand for privacy and…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-20 Jianan Pan , Kejie Huang

We explore the application of deep residual learning and dilated convolutions to the keyword spotting task, using the recently-released Google Speech Commands Dataset as our benchmark. Our best residual network (ResNet) implementation…

Computation and Language · Computer Science 2018-09-24 Raphael Tang , Jimmy Lin

The emergence of Artificial Intelligence (AI) driven Keyword Spotting (KWS) technologies has revolutionized human to machine interaction. Yet, the challenge of end-to-end energy efficiency, memory footprint and system complexity of current…

Audio and Speech Processing · Electrical Eng. & Systems 2021-01-28 Jie Lei , Tousif Rahman , Rishad Shafik , Adrian Wheeldon , Alex Yakovlev , Ole-Christoffer Granmo , Fahim Kawsar , Akhil Mathur

The Tsetlin Machine (TM) has recently attracted attention as a low-power alternative to neural networks due to its simple and interpretable inference mechanisms. However, its performance on speech-related tasks remains limited. This paper…

Sound · Computer Science 2025-10-29 Baizhou Lin , Yuetong Fang , Renjing Xu , Rishad Shafik , Jagmohan Chauhan

A keyword spotting (KWS) engine that is continuously running on device is exposed to various speech signals that are usually unseen before. It is a challenging problem to build a small-footprint and high-performing KWS model with robustness…

Sound · Computer Science 2024-08-27 Zhenyu Wang , Li Wan , Biqiao Zhang , Yiteng Huang , Shang-Wen Li , Ming Sun , Xin Lei , Zhaojun Yang

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

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

To efficiently extract spatiotemporal features of video for action recognition, most state-of-the-art methods integrate 1D temporal convolution into a conventional 2D CNN backbone. However, they all exploit 1D temporal convolution of fixed…

Computer Vision and Pattern Recognition · Computer Science 2020-01-28 Kaiyu Shan , Yongtao Wang , Zhuoying Wang , Tingting Liang , Zhi Tang , Ying Chen , Yangyan Li

Keyword spotting (KWS) offers a vital mechanism to identify spoken commands in voice-enabled systems, where user demands often shift, requiring models to learn new keywords continually over time. However, a major problem is catastrophic…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-20 Yang Xiao , Tianyi Peng , Rohan Kumar Das , Yuchen Hu , Huiping Zhuang

Keyword spotting (KWS) and speaker verification (SV) have been studied independently although it is known that acoustic and speaker domains are complementary. In this paper, we propose a multi-task network that performs KWS and SV…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-10 Myunghun Jung , Youngmoon Jung , Jahyun Goo , Hoirin Kim

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) in historical documents is an important tool for the initial exploration of digitized collections. Nowadays, the most efficient KWS methods are relying on machine learning techniques that require a large amount of…

Computer Vision and Pattern Recognition · Computer Science 2023-03-07 Sana Khamekhem Jemni , Sourour Ammar , Mohamed Ali Souibgui , Yousri Kessentini , Abbas Cheddad