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Keyword spotting (KWS) aims to discriminate a specific wake-up word from other signals precisely and efficiently for different users. Recent works utilize various deep networks to train KWS models with all users' speech data centralized…

Machine Learning · Computer Science 2022-06-20 Xin-Chun Li , Jin-Lin Tang , Shaoming Song , Bingshuai Li , Yinchuan Li , Yunfeng Shao , Le Gan , De-Chuan Zhan

In this study, we investigate the application of keyword spotting (KWS) in the domain of Hindi speech recognition, utilizing a dataset comprising 40,000 audio samples. With a sampling rate of 44 kHz and an average duration of 1.9 seconds…

Sound · Computer Science 2026-05-06 Saru Bharti , Pushparaj Mani Pathak

Designing an efficient keyword spotting (KWS) system that delivers exceptional performance on resource-constrained edge devices has long been a subject of significant attention. Existing KWS search algorithms typically follow a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-21 Yu Xi , Hao Li , Baochen Yang , Haoyu Li , Hainan Xu , Kai Yu

The goal of this work is to detect new spoken terms defined by users. While most previous works address Keyword Spotting (KWS) as a closed-set classification problem, this limits their transferability to unseen terms. The ability to define…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-02 Jaemin Jung , Youkyum Kim , Jihwan Park , Youshin Lim , Byeong-Yeol Kim , Youngjoon Jang , Joon Son Chung

The performance of the keyword spotting (KWS) system based on audio modality, commonly measured in false alarms and false rejects, degrades significantly under the far field and noisy conditions. Therefore, audio-visual keyword spotting,…

Sound · Computer Science 2023-03-15 Ao Zhang , He Wang , Pengcheng Guo , Yihui Fu , Lei Xie , Yingying Gao , Shilei Zhang , Junlan Feng

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 (KWS) is crucial for many speech-driven applications, but robust KWS in noisy environments remains challenging. Conventional systems often rely on single-channel inputs and a cascaded pipeline separating front-end…

Audio and Speech Processing · Electrical Eng. & Systems 2026-03-11 Rui Wang , Zhifei Zhang , Yu Gao , Xiaofeng Mou , Yi Xu

Small-Footprint Keyword Spotting (SF-KWS) has gained popularity in today's landscape of smart voice-activated devices, smartphones, and Internet of Things (IoT) applications. This surge is attributed to the advancements in Deep Learning,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-16 Soumen Garai , Suman Samui

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

Keyword spotting (KWS) and speaker verification (SV) are two important tasks in speech applications. Research shows that the state-of-art KWS and SV models are trained independently using different datasets since they expect to learn…

Sound · Computer Science 2022-04-01 Li Wang , Rongzhi Gu , Weiji Zhuang , Peng Gao , Yujun Wang , Yuexian Zou

Customized keyword spotting (KWS) has great potential to be deployed on edge devices to achieve hands-free user experience. However, in real applications, false alarm (FA) would be a serious problem for spotting dozens or even hundreds of…

Sound · Computer Science 2022-07-05 Zhanheng Yang , Sining Sun , Jin Li , Xiaoming Zhang , Xiong Wang , Long Ma , Lei Xie

Existing keyword spotting (KWS) systems primarily rely on predefined keyword phrases. However, the ability to recognize customized keywords is crucial for tailoring interactions with intelligent devices. In this paper, we present a novel…

Computation and Language · Computer Science 2024-11-26 Zhenyu Wang , Shuyu Kong , Li Wan , Biqiao Zhang , Yiteng Huang , Mumin Jin , Ming Sun , Xin Lei , Zhaojun Yang

In the paper we present an architecture of a keyword spotting (KWS) system that is based on modern neural networks, yields good performance on various types of speech data and can run very fast. We focus mainly on the last aspect and…

Audio and Speech Processing · Electrical Eng. & Systems 2020-09-09 Jan Nouza , Petr Cerva , Jindrich Zdansky

This literature review surveys the advancements of keyword spotting (KWS) technologies, specifically focusing on Urdu, Pakistan's low-resource language (LRL), which has complex phonetics. Despite the global strides in speech technology,…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-26 Syed Muhammad Aqdas Rizvi

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…

In order to maximize detection precision rate as well as the recall rate, this paper proposes an in-vehicle multi-source fusion scheme in Keyword Spotting (KWS) System for vehicle applications. Vehicle information, as a new source for the…

Machine Learning · Computer Science 2019-02-19 Yue Tan , Kan Zheng , Lei Lei

Few-shot keyword spotting (FS-KWS) models usually require large-scale annotated datasets to generalize to unseen target keywords. However, existing KWS datasets are limited in scale and gathering keyword-like labeled data is costly…

Audio and Speech Processing · Electrical Eng. & Systems 2023-09-06 Seunghan Yang , Byeonggeun Kim , Kyuhong Shim , Simyung Chang

Speech recognition has become an important task in the development of machine learning and artificial intelligence. In this study, we explore the important task of keyword spotting using speech recognition machine learning and deep learning…

Sound · Computer Science 2023-12-12 Sumedha Rai , Tong Li , Bella Lyu

In this paper, we present a novel approach to adapt a sequence-to-sequence Transformer-Transducer ASR system to the keyword spotting (KWS) task. We achieve this by replacing the keyword in the text transcription with a special token <kw>…

Audio and Speech Processing · Electrical Eng. & Systems 2022-11-15 Beltrán Labrador , Guanlong Zhao , Ignacio López Moreno , Angelo Scorza Scarpati , Liam Fowl , Quan Wang

One of the challenges in developing a high quality custom keyword spotting (KWS) model is the lengthy and expensive process of collecting training data covering a wide range of languages, phrases and speaking styles. We introduce Synth4Kws…

Audio and Speech Processing · Electrical Eng. & Systems 2026-02-06 Pai Zhu , Dhruuv Agarwal , Jacob W. Bartel , Kurt Partridge , Hyun Jin Park , Quan Wang