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Keyword spotting (KWS) is a core human-machine-interaction front-end task for most modern intelligent assistants. Recently, a unified (UniKW-AT) framework has been proposed that adds additional capabilities in the form of audio tagging (AT)…

Sound · Computer Science 2023-03-06 Heinrich Dinkel , Yongqing Wang , Zhiyong Yan , Junbo Zhang , Yujun Wang

Recent advances in flexible keyword spotting (KWS) with text enrollment allow users to personalize keywords without uttering them during enrollment. However, there is still room for improvement in target keyword performance. In this work,…

Audio and Speech Processing · Electrical Eng. & Systems 2025-05-27 Youngmoon Jung , Jinyoung Lee , Seungjin Lee , Myunghun Jung , Yong-Hyeok Lee , Hoon-Young Cho

Deep learning models are becoming predominant in many fields of machine learning. Text-to-Speech (TTS), the process of synthesizing artificial speech from text, is no exception. To this end, a deep neural network is usually trained using a…

Sound · Computer Science 2021-02-11 Giuseppe Ruggiero , Enrico Zovato , Luigi Di Caro , Vincent Pollet

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

Keyword spotting (KWS) on mobile devices generally requires a small memory footprint. However, most current models still maintain a large number of parameters in order to ensure good performance. To solve this problem, this paper proposes a…

Sound · Computer Science 2021-09-02 Shenghua Hu , Jing Wang , Yujun Wang , Lidong Yang , Wenjing Yang

Transformer-based text to speech (TTS) model (e.g., Transformer TTS~\cite{li2019neural}, FastSpeech~\cite{ren2019fastspeech}) has shown the advantages of training and inference efficiency over RNN-based model (e.g.,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-08-04 Mingjian Chen , Xu Tan , Yi Ren , Jin Xu , Hao Sun , Sheng Zhao , Tao Qin , Tie-Yan Liu

When the available data of a target speaker is insufficient to train a high quality speaker-dependent neural text-to-speech (TTS) system, we can combine data from multiple speakers and train a multi-speaker TTS model instead. Many studies…

Audio and Speech Processing · Electrical Eng. & Systems 2019-04-09 Hieu-Thi Luong , Xin Wang , Junichi Yamagishi , Nobuyuki Nishizawa

Keyword Spotting plays a critical role in enabling hands-free interaction for battery-powered edge devices. Few-Shot Keyword Spotting (FS-KWS) addresses the scalability and adaptability challenges of traditional systems by enabling…

Audio and Speech Processing · Electrical Eng. & Systems 2025-10-09 Alican Gok , Oguzhan Buyuksolak , Osman Erman Okman , Murat Saraclar

Speech separation (SS) has advanced significantly with neural network-based methods, showing improved performance on signal-level metrics. However, these methods often struggle to maintain speech intelligibility in the separated signals,…

Sound · Computer Science 2026-01-28 Tianhua Li , Chenda Li , Wei Wang , Xin Zhou , Xihui Chen , Jianqing Gao , Yanmin Qian

The Transformer architecture has been successful across many domains, including natural language processing, computer vision and speech recognition. In keyword spotting, self-attention has primarily been used on top of convolutional or…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-11 Axel Berg , Mark O'Connor , Miguel Tairum Cruz

Open-vocabulary keyword spotting (KWS) refers to the task of detecting words or terms within speech recordings, regardless of whether they were included in the training data. This paper introduces an open-vocabulary keyword spotting model…

Audio and Speech Processing · Electrical Eng. & Systems 2025-08-08 Yael Segal-Feldman , Ann R. Bradlow , Matthew Goldrick , Joseph Keshet

A personalized KeyWord Spotting (KWS) pipeline typically requires the training of a Deep Learning model on a large set of user-defined speech utterances, preventing fast customization directly applied on-device. To fill this gap, this paper…

Machine Learning · Computer Science 2023-06-06 Manuele Rusci , Tinne Tuytelaars

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

This paper presents a novel streaming end-to-end target-speaker speech recognition that addresses two critical limitations in systems: the handling of noisy enrollment utterances and specific enrollment phrase requirements. This paper…

Audio and Speech Processing · Electrical Eng. & Systems 2025-01-28 Mohsen Ghane , Mohammad Sadegh Safari

Voice assistants are now widely available, and to activate them a keyword spotting (KWS) algorithm is used. Modern KWS systems are mainly trained using supervised learning methods and require a large amount of labelled data to achieve a…

Audio and Speech Processing · Electrical Eng. & Systems 2024-03-28 Jacob Mørk , Holger Severin Bovbjerg , Gergely Kiss , Zheng-Hua Tan

Conversational text-to-speech (TTS) aims to synthesize speech with proper prosody of reply based on the historical conversation. However, it is still a challenge to comprehensively model the conversation, and a majority of conversational…

Sound · Computer Science 2023-05-04 Jinlong Xue , Yayue Deng , Fengping Wang , Ya Li , Yingming Gao , Jianhua Tao , Jianqing Sun , Jiaen Liang

Speech separation seeks to isolate individual speech signals from a multi-talk speech mixture. Despite much progress, a system well-trained on synthetic data often experiences performance degradation on out-of-domain data, such as…

Sound · Computer Science 2025-03-18 Wupeng Wang , Zexu Pan , Jingru Lin , Shuai Wang , Haizhou Li

In this paper, we propose a novel strategy for text-independent speaker identification system: Multi-Label Training (MLT). Instead of the commonly used one-to-one correspondence between the speech and the speaker label, we divide all the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-08-19 Yuqi Xue

Transformer has been successfully applied to speech separation recently with its strong long-dependency modeling capacity using a self-attention mechanism. However, Transformer tends to have heavy run-time costs due to the deep encoder…

Audio and Speech Processing · Electrical Eng. & Systems 2022-04-28 Sanyuan Chen , Yu Wu , Zhuo Chen , Jian Wu , Takuya Yoshioka , Shujie Liu , Jinyu Li , Xiangzhan Yu

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