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Voice-based interfaces rely on a wake-up word mechanism to initiate communication with devices. However, achieving a robust, energy-efficient, and fast detection remains a challenge. This paper addresses these real production needs by…

Sound · Computer Science 2023-10-18 Fernando López , Jordi Luque , Carlos Segura , Pablo Gómez

Incremental improvements in accuracy of Convolutional Neural Networks are usually achieved through use of deeper and more complex models trained on larger datasets. However, enlarging dataset and models increases the computation and storage…

Audio and Speech Processing · Electrical Eng. & Systems 2018-07-24 Mahdi Hajibabaei , Dengxin Dai

This paper proposes a multi-task learning network with phoneme-aware and channel-wise attentive learning strategies for text-dependent Speaker Verification (SV). In the proposed structure, the frame-level multi-task learning along with the…

Sound · Computer Science 2021-06-28 Yan Liu , Zheng Li , Lin Li , Qingyang Hong

This paper proposes singing voice synthesis (SVS) based on frame-level sequence-to-sequence models considering vocal timing deviation. In SVS, it is essential to synchronize the timing of singing with temporal structures represented by…

Audio and Speech Processing · Electrical Eng. & Systems 2023-02-23 Miku Nishihara , Yukiya Hono , Kei Hashimoto , Yoshihiko Nankaku , Keiichi Tokuda

For most intelligent assistant systems, it is essential to have a mechanism that detects out-of-domain (OOD) utterances automatically to handle noisy input properly. One typical approach would be introducing a separate class that contains…

Computation and Language · Computer Science 2020-03-30 Yueqi Feng , Jiali Lin

The security of messaging applications against person-in-the-middle attacks relies on the authenticity of the exchanged keys. For users unable to meet in person, a manual key fingerprint verification is necessary to ascertain key…

Human-Computer Interaction · Computer Science 2021-06-03 Lee Livsey , Helen Petrie , Siamak F. Shahandashti , Aidan Fray

We present an architecture for voice trigger detection for virtual assistants. The main idea in this work is to exploit information in words that immediately follow the trigger phrase. We first demonstrate that by including more audio…

Audio and Speech Processing · Electrical Eng. & Systems 2021-03-03 Siddharth Sigtia , John Bridle , Hywel Richards , Pascal Clark , Erik Marchi , Vineet Garg

Comparison and evaluation of graph-based representations of sentence meaning is a challenge because competing representations of the same sentence may have different number of nodes, and it is not obvious which nodes should be compared to…

Computation and Language · Computer Science 2026-03-30 Daniel Zeman , Federica Gamba

Understanding the meaning of text in images of natural scenes like highway signs or store front emblems is particularly challenging if the text is foreshortened in the image or the letters are artistically distorted. We introduce a…

Computer Vision and Pattern Recognition · Computer Science 2020-05-29 Qitong Wang , Yi Zheng , Margrit Betke

Noisy self-reported empathy scores challenge supervised learning for empathy regression. While many algorithms have been proposed for learning with noisy labels in textual classification problems, the regression counterpart is relatively…

Computation and Language · Computer Science 2025-11-25 Md Rakibul Hasan , Md Zakir Hossain , Aneesh Krishna , Shafin Rahman , Tom Gedeon

This paper explores two techniques to improve the performance of text-dependent speaker verification systems based on deep neural networks. Firstly, we propose a general alignment mechanism to keep the temporal structure of each phrase and…

Sound · Computer Science 2019-05-01 Victoria Mingote , Antonio Miguel , Alfonso Ortega , Eduardo Lleida

The COVID-19 pandemic has led to an increased use of remote telephonic interviews, making it important to distinguish between scripted and spontaneous speech in audio recordings. In this paper, we propose a novel scheme for identifying read…

Sound · Computer Science 2023-06-16 Sunil Kumar Kopparapu

Speech recognition and other natural language tasks have long benefited from voting-based algorithms as a method to aggregate outputs from several systems to achieve a higher accuracy than any of the individual systems. Diarization, the…

Computation and Language · Computer Science 2020-02-06 Andreas Stolcke , Takuya Yoshioka

UniSpeech has achieved superior performance in cross-lingual automatic speech recognition (ASR) by explicitly aligning latent representations to phoneme units using multi-task self-supervised learning. While the learned representations…

Audio and Speech Processing · Electrical Eng. & Systems 2023-10-10 Hongfei Xue , Qijie Shao , Peikun Chen , Pengcheng Guo , Lei Xie , Jie Liu

CAPTCHAs are employed as a security measure to differentiate human users from bots. A new sound-based CAPTCHA is proposed in this paper, which exploits the gaps between human voice and synthetic voice rather than relays on the auditory…

Cryptography and Security · Computer Science 2013-06-13 Haichang Gao , Honggang Liu , Dan Yao , Xiyang Liu , Uwe Aickelin

Visual speech recognition aims to identify the sequence of phonemes from continuous speech. Unlike the traditional approach of using 2D image feature extraction methods to derive features of each video frame separately, this paper proposes…

Computer Vision and Pattern Recognition · Computer Science 2016-09-08 Toni Heidenreich , Michael W. Spratling

We consider the problem of duplicate detection in noisy and incomplete data: given a large data set in which each record has multiple entries (attributes), detect which distinct records refer to the same real world entity. This task is…

Databases · Computer Science 2019-07-11 Yves van Gennip , Blake Hunter , Anna Ma , Daniel Moyer , Ryan de Vera , Andrea L. Bertozzi

Speaker verification systems are crucial for authenticating identity through voice. Traditionally, these systems focus on comparing feature vectors, overlooking the speech's content. However, this paper challenges this by highlighting the…

Sound · Computer Science 2024-09-10 Massa Baali , Abdulhamid Aldoobi , Hira Dhamyal , Rita Singh , Bhiksha Raj

Deep LSTM is an ideal candidate for text recognition. However text recognition involves some initial image processing steps like segmentation of lines and words which can induce error to the recognition system. Without segmentation,…

Computer Vision and Pattern Recognition · Computer Science 2015-02-27 Anupama Ray , Sai Rajeswar , Santanu Chaudhury

Machine-translated text plays an important role in modern life by smoothing communication from various communities using different languages. However, unnatural translation may lead to misunderstanding, a detector is thus needed to avoid…

Computation and Language · Computer Science 2019-04-25 Hoang-Quoc Nguyen-Son , Tran Phuong Thao , Seira Hidano , Shinsaku Kiyomoto