Research

 

The National Center for Media Forensics actively develops basic and applied research projects in areas affecting the analysis and recovery of forensic media. Areas include the enhancement and authentication of forensic audio and imagery as well as biometric comparisons and event analyses from forensic recordings.

 

 

PUBLISHED RESEARCH

An Audio Enhancement Framework for Forensic Purposes by Catalin Grigoras, Jeff M. Smith, and James Zjalic. American Academy of Forensic Sciences 70th Annual Scientific Meeting. 2018.

Time Domain Analysis of Lossy Compression Decoding Artifacts by Catalin Grigoras and Jeff M. Smith. American Academy of Forensic Sciences 70th Annual Scientific Meeting. 2018.

Digital Image Recompression Analysis: Twitter by Gretchel Lomboy, Catalin Grigoras, and Jeff M. Smith. American Academy of Forensic Sciences 70th Annual Scientific Meeting. 2018.

Large Scale Test of Digital Audio File Structure and Format for Forensic Analysis by Catalin Grigoras and Jeff M. Smith. Audio Engineering Society International Conference on Audio Forensics. 2017.​​

A Low Cost, Cloud Based, Portable, Remote ENF System by James Zjalic, Catalin Grigoras, and Jeff M. Smith. Audio Engineering Society International Conference on Audio Forensics. 2017.

Triage Approach for the Forensic Analysis of Apple iOS Audio Files Recorded Using the "Voice Memos" App by Jeff M. Smith, Douglas Lacey, Bruce Koenig, and Catalin Grigoras. Audio Engineering Society International Conference on Audio Forensics. 2017.

Structure and Format Analysis of Lossy Compressed Audio Files by Catalin Grigoras and Jeff M. Smith. American Academy of Forensic Sciences 69th Annual Scientific Meeting. 2017.

An Analysis of Apple iOS Effects on Format and Metadata Structure of Audio Files Recorded Using the Native “Voice Memos” App by Jeff M. Smith, Douglas S. Lacey, Catalin Grigoras, and Bruce E. Koenig. American Academy of Forensic Sciences 69th Annual Scientific Meeting. 2017.

Forensic Audio Analysis Review 2013-2016 by Catalin Grigoras, Jeff M. Smith, and Andrzej Drygajlo. Interpol 18th International Forensic Science Managers Symposium. 2016.​

Forensic Analysis of Digital Audio File Structures and Formats by Catalin Grigoras and Jeff M. Smith. American Academy of Forensic Sciences 68th Annual Scientific Meeting. 2016.

Proposed Analytical Framework for Electronically Frequency/Pitch Modified Voices by Eliud Bonilla, Catalin Grigoras, and Jeff M. Smith. American Academy of Forensic Sciences 68th Annual Scientific Meeting. 2016.

Source Identification of High-Definition Videos – A Forensic Analysis of Downloaders and YouTube Video Compression Using a Group of Action Cameras by Zac P. Giammarrusco, Catalin Grigoras, and Jeff M. Smith. American Academy of Forensic Sciences 68th Annual Scientific Meeting. 2016.

Quantization Level Analysis for Forensic Media Authentication by Catalin Grigoras and Jeff M. Smith. Audio Engineering Society 54th International Conference: Audio Forensics. 2014.

Forensic Audio Analysis Review 2010-2013 by Catalin Grigoras, Jeff M. Smith, Geoffrey Stewart Morrison, and Ewald Enzinger. Interpol 17th International Forensic Science Managers Symposium. 2013.

Digital Imaging: Enhancement and Authentication by Catalin Grigoras and Jeff M. Smith. In Encyclopedia of Forensic Sciences, edited by Jay A. Siegel and Pekka J. Saukko. Second Edition. Waltham: Academic Press. 2013.

Audio Enhancement and Authentication by Catalin Grigoras and Jeff M. Smith. In Encyclopedia of Forensic Sciences, edited by Jay A. Siegel and Pekka J. Saukko. Second Edition. Waltham: Academic Press. 2013.

Evaluation of the Average DC Offset Values for Nine Small Digital Audio Recorders by Bruce E. Koenig, Douglas S. Lacey, Catalin Grigoras, Suzana Galic Price, and Jeff M. Smith. Journal of the Audio Engineering Society, Volume 61, Issue 6. June 2013.

Analytical Framework for Digital Audio Authentication by Catalin Grigoras, Daniel Rappaport, and Jeff M. Smith. Audio Engineering Society 46th International Conference: Audio Forensics. 2012.

Advances in ENF Analysis for Digital Media Authentication by Catalin Grigoras and Jeff M. Smith. Audio Engineering Society 46th International Conference: Audio Forensics. 2012.

Evaluation of the Average DC Offset Values for Nine Small Digital Audio Recorders by Bruce E. Koenig, Douglas S. Lacey, Catalin Grigoras, Suzana Galic Price, and Jeff M. Smith. Audio Engineering Society 46th International Conference: Audio Forensics. 2012. <link in new tab to >

Advances in ENF Database Configuration for Forensic Authentication of Digital Media by Catalin Grigoras, Jeff M. Smith, and Christopher Jenkins. Audio Engineering Society 131st Convention. 2011.

Statistical Tools for Multimedia Forensics by Catalin Grigoras. Audio Engineering Society 39th International Conference: Audio Forensics. 2010.​

Computer Forensics for the Forensic Audio Professional by Marcus K .Rogers and Jeff M. Smith. Audio Engineering Society 39th International Conference: Audio Forensics. 2010.

THESES FROM THE MEDIA FORENSICS GRADUATE PROGRAM
(MASTER OF SCIENCE IN RECORDING ARTS)

2018

Digital Image Recompression Analysis: Sina Weibo by Holly Arai. Fall 2018.

Proposed Method for Recording and Analyzing Cell Phone Adaptive Noise Reduction Filters​ by Anthony Nelson. Fall 2018.

Digital Image Recompression Analysis: Twitter​ by Gretchel Lomboy. Spring 2018.

Digital Image Recompression Analysis of Instagram by Zachary Douglas. Spring 2018.

Analysis of Facebook's Video Encoders by Jacek Wolanin. Spring 2018.

2017

A Proposed Framework for Forensic Audio Enhancement by James Zjalic. Fall 2017.

Analysis of Audio Recording Made Using "Voice Memos" Application for iOS by Andrew Hill. Fall 2017. 

YouTube: Recompression Effects by Cole Whitecotton. Fall 2017.

Analysis of Voice Activated Artifacts by Kelsey Black. Fall 2017.

A Forensic Analysis of Digital Image Characteristics Associated to Flicker® and Google Plus® by Melissa Lawson. Fall 2017.

Automated Color and Location Comparison as a Timestamp Recognition Method in Images by Jeremy Wegrzyn. Spring 2017.

A Framework for Performing Forensic and Investigatory Speaker Comparisons Using Automated Methods by David Marks. Spring 2017.

Proposed Analytical Framework for Electronically Frequency-Modified Voices by Eliud Bonilla. Spring 2017.

2016

Digital Image Recompression Analysis: Facebook by Megan Pippin. Fall 2016.

Effects of Clipping Distortion on an Automatic Speaker Recognition System by Jose Ramirez. Spring 2016. 

Digital Image Manipulation Detection on Facebook Images by Charina Marrion. Spring 2016.

Automated Authentication of Exemplar Media in a Database by Brent Larsen. Spring 2016.

Digital Photography Analysis: Analytical Framework for Measuring the Effects of Saturation on Photo Response Non-Uniformity by Kris Henry. Spring 2016.

2015

A Proposed Framework for Forensic Image Enhancement by Spencer Ledesma. Fall 2015.

MPEG-4 Video Authentication Using File Structure and Metadataby Jake Hall. Fall 2015.

Analysis of Zero-Level Sample Padding of Various MP3 Codecs by Josh Berman. Fall 2015.

Compression Level Analysis: Examining Video Compression Levels from Commercial Software by Patrick Badgely. Fall 2015.

Text-Independent, Automatic Speaker Recognition System Evaluation with Males Speaking Both Arabic and English by Safi Alamri. Fall 2015.

Digital and Multimedia Forensics Justified: An Appraisal on Professional Policy and Legislation by Amy Popejoy. Spring 2015.

2014

Source Identification of High Definition Videos: A Forensic Analysis of Downloaders and YouTube Video Compression Using a Group of Action Cameras by Zac Giammarrusco. Fall 2014.

A Forensic Investigation of the Electrical Properties of Digital Audio Recording by Jack LeRoi. Spring 2014.

2013

A Method for Performance Verification of Freeware Hash Utilities Using MATLABby Sean Jacobson. Summer 2013.

Cell Phone Images in Social Media: An Analysis of Cellphone Image Structure Before and After Social Media Compression by Nicholas Ng. Summer 2013.

Analysis of DC Offset in iOS Devices for Use in Audio Forensic Examinations by Daniel Fuller. Spring 2013.

2012

Audio Gunshot Detection and Localizations Systems: History, Basic Design, and Future Possibilities by Jordan Graves. Fall 2012.

A Proposed Solution to the Issue of Proprietary DCCTV Video File Playback by Brian Prendergast. Spring 2012.

Establishing a Standard for Digital Audio Authenticity: A Critical Analysis of Tools, Methodologies, and Challenges by Daniel Rappaport. Spring 2012.

2011

Digital Image Analysis: Analytical Framework for Authenticating Digital Images by Scott Anderson. Fall 2011.

Quantifying the Effects of Lossy Digital Audio Compression Algorithms on Electric Network Frequency Signals in Forensic Analysis by Harrison Archer. Fall 2011.

 

An Investigative Approach to Configuring Forensic Electric Network Frequency Databases by Christopher Jenkins. Fall 2011.