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Distinct striation patterns are observed in the spectrograms of speech and music. This motivated us to propose three novel time-frequency features for speech-music classification. These features are extracted in two stages. First, a preset…

音频与语音处理 · 电气工程与系统科学 2018-11-06 Mrinmoy Bhattacharjee , S. R. M. Prasanna , Prithwijit Guha

This paper is about alerting acoustic event detection and sound source localisation in an urban scenario. Specifically, we are interested in spotting the presence of horns, and sirens of emergency vehicles. In order to obtain a reliable…

声音 · 计算机科学 2022-03-29 Letizia Marchegiani , Paul Newman

Side-channel attacks consist of retrieving internal data from a victim system by analyzing its leakage, which usually requires proximity to the victim in the range of a few millimetres. Screaming channels are EM side channels transmitted at…

密码学与安全 · 计算机科学 2025-04-07 Jeremy Guillaume , Maxime Pelcat , Amor Nafkha , Rubén Salvador

We report the first active acoustic side-channel attack. Speakers are used to emit human inaudible acoustic signals and the echo is recorded via microphones, turning the acoustic system of a smart phone into a sonar system. The echo signal…

密码学与安全 · 计算机科学 2018-08-31 Peng Cheng , Ibrahim Ethem Bagci , Utz Roedig , Jeff Yan

We present a simple and efficient method for refining maps or correspondences by iterative upsampling in the spectral domain that can be implemented in a few lines of code. Our main observation is that high quality maps can be obtained even…

图形学 · 计算机科学 2019-09-13 Simone Melzi , Jing Ren , Emanuele Rodolà , Abhishek Sharma , Peter Wonka , Maks Ovsjanikov

The focus of this paper is on classification of different vehicles using sound emanated from the vehicles. In this paper,quadratic discriminant analysis classifies audio signals of passing vehicles to bus, car, motor, and truck categories…

声音 · 计算机科学 2018-04-05 Ali Dalir , Ali Asghar Beheshti , Morteza Hoseini Masoom

Comments for a product or a news article are rapidly growing and became a medium of measuring quality products or services. Consequently, spammers have been emerged in this area to bias them toward their favor. In this paper, we propose an…

信息检索 · 计算机科学 2014-07-29 Seungyeon Kim , Haesun Park , Guy Lebanon

The usage of the mobile app is unassailable in this digital era. While tons of data are generated daily, user privacy security concerns become an important issue. Nowadays, tons of techniques, such as machine learning and deep learning…

密码学与安全 · 计算机科学 2023-02-08 Lichun Gao , Mingjie Zeng , Zhanhong Huang

Product distribution matching (PDM) is proposed to generate target distributions over large alphabets by combining the output of several parallel distribution matchers (DMs) with smaller output alphabets. The parallel architecture of PDM…

信息论 · 计算机科学 2017-02-27 Georg Böcherer , Patrick Schulte , Fabian Steiner

Automatic speech recognition systems have created exciting possibilities for applications, however they also enable opportunities for systematic eavesdropping. We propose a method to camouflage a person's voice over-the-air from these…

声音 · 计算机科学 2022-02-18 Mia Chiquier , Chengzhi Mao , Carl Vondrick

This work introduces a feature extracted from stereophonic/binaural audio signals aiming to represent a measure of perceived quality degradation in processed spatial auditory scenes. The feature extraction technique is based on a simplified…

音频与语音处理 · 电气工程与系统科学 2022-12-06 Pablo M. Delgado , Jürgen Herre

This paper presents a formal framework for identifying and filtering SPIT calls (SPam in Internet Telephony) in an outbound scenario with provable optimal performance. In so doing, our work is largely different from related previous work:…

网络与互联网体系结构 · 计算机科学 2012-01-31 Tobias Jung , Sylvain Martin , Mohamed Nassar , Damien Ernst , Guy Leduc

Audio DeepFakes are utterances generated with the use of deep neural networks. They are highly misleading and pose a threat due to use in fake news, impersonation, or extortion. In this work, we focus on increasing accessibility to the…

声音 · 计算机科学 2022-10-13 Piotr Kawa , Marcin Plata , Piotr Syga

Advanced Persistent Threat (APT) attack, also known as directed threat attack, refers to the continuous and effective attack activities carried out by an organization on a specific object. They are covert, persistent and targeted, which are…

密码学与安全 · 计算机科学 2020-10-28 Ru Zhang , Wenxin Sun , Jianyi Liu , Jingwen Li , Guan Lei , Han Guo

Deepfakes are synthetically generated media often devised with malicious intent. They have become increasingly more convincing with large training datasets advanced neural networks. These fakes are readily being misused for slander,…

密码学与安全 · 计算机科学 2022-03-30 Nicolas M. Müller , Franziska Dieckmann , Jennifer Williams

In our modern society telephony has developed to an omnipresent service. People are available at anytime and anywhere. Furthermore the Internet has emerged to an important communication medium. These facts and the raising availability of…

密码学与安全 · 计算机科学 2008-06-11 Andreas U. Schmidt , Nicolai Kuntze , Rachid El Khayari

Malicious calls, i.e., telephony spams and scams, have been a long-standing challenging issue that causes billions of dollars of annual financial loss worldwide. This work presents the first machine learning-based solution without relying…

密码学与安全 · 计算机科学 2018-05-30 Huichen Li , Xiaojun Xu , Chang Liu , Teng Ren , Kun Wu , Xuezhi Cao , Weinan Zhang , Yong Yu , Dawn Song

In this work, we propose a multi-target backdoor attack against speaker identification using position-independent clicking sounds as triggers. Unlike previous single-target approaches, our method targets up to 50 speakers simultaneously,…

Web spam is a big problem for search engine users in World Wide Web. They use deceptive techniques to achieve high rankings. Although many researchers have presented the different approach for classification and web spam detection still it…

信息检索 · 计算机科学 2017-11-21 Hamed Jelodar , Yongli Wang , Chi Yuan , Xiaohui Jiang

Recent anti-spoofing systems focus on spoofing detection, where the task is only to determine whether the test audio is fake. However, there are few studies putting attention to identifying the methods of generating fake speech. Common…

声音 · 计算机科学 2022-12-19 Tinglong Zhu , Xingming Wang , Xiaoyi Qin , Ming Li