Tampering detection and location identification of digital audio recordings

Patent · 20 July 2021

OSTI ID:1840281

Chai, Jidong; Liu, Yilu; Zhao, Jiecheng; Yao, Wenxuan; King, Thomas J.

Systems and methods for detecting a tampering and identifying a location of a digital recording are provided. A frequency sequence and a phase angle sequence may be extracted from the digital recording. A portion of the frequency sequence may be matched to one of a plurality of reference frequency sequences, and a portion of the phase angle sequence may be matched to one of a plurality of reference phase angle sequences. Tampering of the digital recording may be detected when the frequency and phase sequences differ from the matched reference sequences. Moreover, a noise sequence may be extracted from the extracted frequency sequence. A location of the digital recording may be identified by matching the noise sequence to one of a plurality of noise sequences of the plurality of reference frequency sequences.

• Research Organization: STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT This invention was made with government support under grants from the National Science Foundation, Award No. EEC-1041877, the Department of Justice, National Institutes of Justice, Award No. 2009-DN-BX-K233, and the Department of Energy, Award No. DE-AC05-00OR22725. The U.S. Government has certain rights in this invention.
• Sponsoring Organization: USDOE; US Dept. of Justice (DOJ), National Institutes of Justice; National Science Foundation (NSF)
• DOE Contract Number: AC05-00OR22725
• Assignee: University of Tennessee Research Foundation (Knoxville, TN); UT-Battelle, LLC (Oak Ridge, TN)
• Patent Number(s): 11,069,370
• Application Number: 14/992,974
• OSTI ID: 1840281
• Country of Publication: United States
• Language: English