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Identifying keywords in an open-vocabulary context is crucial for personalizing interactions with smart devices. Previous approaches to open vocabulary keyword spotting dependon a shared embedding space created by audio and text encoders.…

Human-Computer Interaction · Computer Science 2024-04-19 Kesavaraj V , Anil Kumar Vuppala

Speech recognition is a sequence prediction problem. Besides employing various deep learning approaches for framelevel classification, sequence-level discriminative training has been proved to be indispensable to achieve the…

Computation and Language · Computer Science 2018-08-20 Zhehuai Chen , Yanmin Qian , Kai Yu

Voice spoofing attacks pose a significant threat to automated speaker verification systems. Existing anti-spoofing methods often simulate specific attack types, such as synthetic or replay attacks. However, in real-world scenarios, the…

Sound · Computer Science 2023-09-19 Awais Khan , Khalid Mahmood Malik , Shah Nawaz

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

Keyword Spotting (KWS) is essential in edge computing requiring rapid and energy-efficient responses. Spiking Neural Networks (SNNs) are well-suited for KWS for their efficiency and temporal capacity for speech. To further reduce the…

Sound · Computer Science 2024-06-19 Zeyang Song , Qianhui Liu , Qu Yang , Yizhou Peng , Haizhou Li

Recently, there has been an increasing interest in end-to-end speech recognition that directly transcribes speech to text without any predefined alignments. One approach is the attention-based encoder-decoder framework that learns a mapping…

Computation and Language · Computer Science 2017-02-02 Suyoun Kim , Takaaki Hori , Shinji Watanabe

The task of speaker change detection (SCD), which detects points where speakers change in an input, is essential for several applications. Several studies solved the SCD task using audio inputs only and have shown limited performance.…

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 sense-aware contextualised word embeddings (SCWEs) encode semantic changes of words within the contextualised word embedding (CWE) spaces. Despite the superior performance of SCWEs in contextual/temporal semantic change detection (SCD)…

Computation and Language · Computer Science 2024-12-05 Taichi Aida , Danushka Bollegala

Large Language Models (LLMs) have demonstrated remarkable success across diverse fields, establishing a powerful paradigm for complex information processing. This has inspired the integration of speech into LLM frameworks, often by…

Audio and Speech Processing · Electrical Eng. & Systems 2025-12-30 Xiangyu Zhang , Fuming Fang , Peng Gao , Bin Qin , Beena Ahmed , Julien Epps

By combining the undecimated wavelet transform within a Word Embedded Semantic Marginal Autoencoder (WESMA), this research study provides a novel strategy for improving security measures and denoising multiple languages. The incorporation…

Computation and Language · Computer Science 2023-07-10 Shreyanth S

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

Deep learning models excel at many tasks but rely on the assumption that training and test data follow the same distribution. This assumption often does not hold in real-world speech systems, where distribution shifts are common due to…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-06 Bronya Roni Chernyak , Yael Segal , Yosi Shrem , Joseph Keshet

Many deep learning synthetic speech generation tools are readily available. The use of synthetic speech has caused financial fraud, impersonation of people, and misinformation to spread. For this reason forensic methods that can detect…

In this paper, we propose an attention-based end-to-end model for multi-channel keyword spotting (KWS), which is trained to optimize the KWS result directly. As a result, our model outperforms the baseline model with signal pre-processing…

Sound · Computer Science 2018-11-06 Haitong Zhang , Junbo Zhang , Yujun Wang

In this paper, we propose an attention-based end-to-end neural approach for small-footprint keyword spotting (KWS), which aims to simplify the pipelines of building a production-quality KWS system. Our model consists of an encoder and an…

Sound · Computer Science 2018-03-30 Changhao Shan , Junbo Zhang , Yujun Wang , Lei Xie

Continuous Speech Keyword Spotting (CSKWS) is a task to detect predefined keywords in a continuous speech. In this paper, we regard CSKWS as a one-dimensional object detection task and propose a novel anchor-free detector, named AF-KWS, to…

Audio and Speech Processing · Electrical Eng. & Systems 2022-08-10 Zhiyuan Zhao , Chuanxin Tang , Chengdong Yao , Chong Luo

Current synthetic speech detection (SSD) methods perform well on certain datasets but still face issues of robustness and interpretability. A possible reason is that these methods do not analyze the deficiencies of synthetic speech. In this…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-02 Yuxiang Zhang , Zhuo Li , Jingze Lu , Wenchao Wang , Pengyuan Zhang

We propose a new computational approach for tracking and detecting statistically significant linguistic shifts in the meaning and usage of words. Such linguistic shifts are especially prevalent on the Internet, where the rapid exchange of…

Computation and Language · Computer Science 2014-11-13 Vivek Kulkarni , Rami Al-Rfou , Bryan Perozzi , Steven Skiena

Despite their great performance over the years, handcrafted speech features are not necessarily optimal for any particular speech application. Consequently, with greater or lesser success, optimal filterbank learning has been studied for…

Audio and Speech Processing · Electrical Eng. & Systems 2020-06-02 Iván López-Espejo , Zheng-Hua Tan , Jesper Jensen