Forensic Analysis of Digital Audio Recordings based on Acoustic Mains Hum

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dc.authorid0000-0002-4680-1263en_US
dc.contributor.authorVatansever, Saffet
dc.contributor.authorDirik, Ahmet Emir
dc.date.accessioned2021-03-20T20:14:47Z
dc.date.available2021-03-20T20:14:47Z
dc.date.issued2016
dc.departmentBTÜ, Mühendislik ve Doğa Bilimleri Fakültesi, Mekatronik Mühendisliği Bölümüen_US
dc.description24th Signal Processing and Communication Application Conference (SIU) -- MAY 16-19, 2016 -- Zonguldak, TURKEYen_US
dc.descriptionDirik, Ahmet/0000-0002-6200-1717en_US
dc.description.abstractENF (Electrical Network Frequency), fluctuates instantaneously from its nominal value (50/60 Hz) depending on an increase or decrease in power consumption as against power production in the grid network. An ENF-sourced noise component is added into audio recordings where mains power sourced electromagnetic field or acoustic mains hum exists. With the use of this component, recording date and time of an audio file can be verified. In this work, existence and estimation of the acoustic mains hum sourced ENF noise in audio files is studied by analysing the acoustic noise emitted by several devices that are frequently used at home or in workplace. Detection of the file recording time truly is examined by computation of the similarity between the ENF signals estimated from the audio recordings and the reference ENF obtained with the help of a circuit that is connected to power grid network. The behaviour of dynamic microphone and electret microphone towards acoustic mains hum is investigated and the extent of acquiring the information about recording device type and settings from audio files is analysed. Besides, as part of this work, ENF estimation from videos on social media is also investigated.en_US
dc.description.sponsorshipIEEE, Bulent Ecevit Univ, Dept Elect & Elect Engn, Bulent Ecevit Univ, Dept Biomed Engn, Bulent Ecevit Univ, Dept Comp Engnen_US
dc.identifier.endpage1288en_US
dc.identifier.isbn978-1-5090-1679-2
dc.identifier.scopusqualityN/Aen_US
dc.identifier.startpage1285en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12885/1107
dc.identifier.wosWOS:000391250900298en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorVatansever, Saffet
dc.language.isotren_US
dc.publisherIeeeen_US
dc.relation.ispartof2016 24Th Signal Processing And Communication Application Conference (Siu)en_US
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectENFen_US
dc.subjectelectric network frequencyen_US
dc.subjectaudio forensicsen_US
dc.subjectaudible humen_US
dc.subjectmains humen_US
dc.titleForensic Analysis of Digital Audio Recordings based on Acoustic Mains Humen_US
dc.typeConference Objecten_US

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