- Tytuł:
- Methods of Time-Frequency Analysis in Authentication of Digital Audio Recordings
- Autorzy:
- Korycki, R.
- Powiązania:
- https://bibliotekanauki.pl/articles/226798.pdf
- Data publikacji:
- 2010
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
tampering detection
audio authenticity analysis
media authentication
electric network frequency
time-frequency analysis
digital audio forensics
inverse decoder
MP3
compressed audio
perceptual audio coding - Opis:
- This paper describes the problem of tampering detection and discusses the main methods used for authenticity analysis of digital audio recordings. For the first topic, two frequency measurement algorithms based on electric network frequency criterion are applied. Time-frequency analysis is used and improved with reassignment method for purpose of visual inspection of modified recordings. The algorithms are shortly described and exemplary plots are presented with interpretation. The last described method, recently proposed, is based on checking frame offsets in compressed audio files.
- Źródło:
-
International Journal of Electronics and Telecommunications; 2010, 56, 3; 257-262
2300-1933 - Pojawia się w:
- International Journal of Electronics and Telecommunications
- Dostawca treści:
- Biblioteka Nauki
Artykuł