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Conference Paper

Triage Approach for the Forensic Analysis of Apple iOS Audio Files Recorded Using the "Voice Memos" App

Authors: Smith, Jeff; Lacey, Douglas; Koenig, Bruce; Grigoras, Catalin

AES Conference: 2017 AES International Conference on Audio Forensics · Paper 1-5 · June 2017

Abstract

This paper describes the ongoing study into audio recordings originating from Apple iPhones and iPod Touch devices using the built-in “Voice Memos” app. The data collection procedure for producing test recordings from iPhones and iPod Touch devices will be described. These test recordings account for various capture, editing, and interruption scenarios, based on the inherent functionality of the “Voice Memos” app. Based on the metadata analysis of collected data, a decision tree, aimed at helping guide examinations into file originality involving recordings purported to have originated from the “Voice Memos” app, is developed and shared. Additionally, a study based on the practical application of the decision tree to real-world examples was undertaken and is discussed.

Details

Published in
AES Conference: 2017 AES International Conference on Audio Forensics
Paper number
1-5
Publication date
June 6, 2017
Session subject
Authentication
Affiliation
National Center for Media Forensics, CU Denver, Denver, CO, USA; BEK TEK LLC, Stafford, VA, USA (See document for exact affiliation information.)
Type
Conference Paper