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Query-by-example search often uses dynamic time warping (DTW) for comparing queries and proposed matching segments. Recent work has shown that comparing speech segments by representing them as fixed-dimensional vectors --- acoustic word…

Computation and Language · Computer Science 2017-06-14 Shane Settle , Keith Levin , Herman Kamper , Karen Livescu

We consider hate speech detection through keyword spotting on radio broadcasts. One approach is to build an automatic speech recognition (ASR) system for the target low-resource language. We compare this to using acoustic word embedding…

Computation and Language · Computer Science 2023-06-02 Christiaan Jacobs , Nathanaël Carraz Rakotonirina , Everlyn Asiko Chimoto , Bruce A. Bassett , Herman Kamper

Low power digital signal processors (DSPs) typically have a very limited amount of memory in which to cache data. In this paper we develop efficient bottleneck feature (BNF) extractors that can be run on a DSP, and retrain a baseline…

Audio and Speech Processing · Electrical Eng. & Systems 2018-11-02 David B. Ramsay , Kevin Kilgour , Dominik Roblek , Matthew Sharifi

We introduce a time-domain framework for efficient multichannel speech enhancement, emphasizing low latency and computational efficiency. This framework incorporates two compact deep neural networks (DNNs) surrounding a multichannel neural…

Sound · Computer Science 2024-01-17 Tsun-An Hsieh , Jacob Donley , Daniel Wong , Buye Xu , Ashutosh Pandey

There are a number of studies about extraction of bottleneck (BN) features from deep neural networks (DNNs)trained to discriminate speakers, pass-phrases and triphone states for improving the performance of text-dependent speaker…

Sound · Computer Science 2019-05-14 Achintya kr. Sarkar , Zheng-Hua Tan , Hao Tang , Suwon Shon , James Glass

State-of-the-art automatic speech recognition (ASR) system development is data and computation intensive. The optimal design of deep neural networks (DNNs) for these systems often require expert knowledge and empirical evaluation. In this…

Audio and Speech Processing · Electrical Eng. & Systems 2022-03-30 Shoukang Hu , Xurong Xie , Mingyu Cui , Jiajun Deng , Shansong Liu , Jianwei Yu , Mengzhe Geng , Xunying Liu , Helen Meng

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

Keyword Spotting (KWS) plays a vital role in human-computer interaction for smart on-device terminals and service robots. It remains challenging to achieve the trade-off between small footprint and high accuracy for KWS task. In this paper,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-21 Ximin Li , Xiaodong Wei , Xiaowei Qin

We introduce a new approach, the ContrastiveTransformer, that produces acoustic word embeddings (AWEs) for the purpose of very low-resource keyword spotting. The ContrastiveTransformer, an encoder-only model, directly optimises the…

Audio and Speech Processing · Electrical Eng. & Systems 2025-06-24 Julian Herreilers , Christiaan Jacobs , Thomas Niesler

In this work we aim to discover high quality speech features and linguistic units directly from unlabeled speech data in a zero resource scenario. The results are evaluated using the metrics and corpora proposed in the Zero Resource Speech…

Computation and Language · Computer Science 2016-02-02 Cheng-Tao Chung , Cheng-Yu Tsai , Hsiang-Hung Lu , Chia-Hsiang Liu , Hung-yi Lee , Lin-shan Lee

We present dual-attention neural biasing, an architecture designed to boost Wake Words (WW) recognition and improve inference time latency on speech recognition tasks. This architecture enables a dynamic switch for its runtime compute paths…

Chatter detection from sensor signals has been an active field of research. While some success has been reported using several featurization tools and machine learning algorithms, existing methods have several drawbacks such as manual…

Signal Processing · Electrical Eng. & Systems 2019-08-06 Melih C. Yesilli , Firas A. Khasawneh , Andreas Otto

This work explores the use of a monolingual Deep Neural Network (DNN) model as an universal background model (UBM) to address the problem of Language Recognition (LR) in I-vector framework. A Time Delay Deep Neural Network (TDDNN)…

Audio and Speech Processing · Electrical Eng. & Systems 2018-04-16 Mousmita Sarma , Kandarpa Kumar Sarma , Nagendra Kumar Goel

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

Contextual biasing is essential to improving the recognition of rare and domain-specific words in an automatic speech recognition (ASR) system. While numerous methods have been proposed in recent years, most of them focus on offline…

Audio and Speech Processing · Electrical Eng. & Systems 2026-05-20 Kai-Chen Tsai , Tien-Hong Lo , Yun-Ting Sun , Berlin Chen

Recurrent Neural Networks (RNNs) have become the standard modeling technique for sequence data, and are used in a number of novel text-to-speech models. However, training a TTS model including RNN components has certain requirements for GPU…

Computation and Language · Computer Science 2023-04-18 Ziqi Liang

With the expansion of AI-powered virtual assistants, there is a need for low-power keyword spotting systems providing a "wake-up" mechanism for subsequent computationally expensive speech recognition. One promising approach is the use of…

Neural and Evolutionary Computing · Computer Science 2024-10-28 Mattias Nilsson , Ton Juny Pina , Lyes Khacef , Foteini Liwicki , Elisabetta Chicca , Fredrik Sandin

Keyword spotting (KWS) is a critical component for enabling speech based user interactions on smart devices. It requires real-time response and high accuracy for good user experience. Recently, neural networks have become an attractive…

Sound · Computer Science 2018-02-16 Yundong Zhang , Naveen Suda , Liangzhen Lai , Vikas Chandra

Speech has emerged as a widely embraced user interface across diverse applications. However, for individuals with dysarthria, the inherent variability in their speech poses significant challenges. This paper presents an end-to-end…

Sound · Computer Science 2024-09-17 Shuiyun Liu , Yuxiang Kong , Pengcheng Guo , Weiji Zhuang , Peng Gao , Yujun Wang , Lei Xie

Neural networks have achieved remarkable success in time series classification, but their reliance on large amounts of labeled data for training limits their applicability in cold-start scenarios. Moreover, they lack interpretability,…

Machine Learning · Computer Science 2025-07-15 Jintao Qu , Zichong Wang , Chenhao Wu , Wenbin Zhang