TY - GEN
T1 - Defeating fake-quality MP3
AU - Yang, Rui
AU - Shi, Yun Q.
AU - Huang, Jiwu
PY - 2009
Y1 - 2009
N2 - MP3 is the most popular audio format nowadays in our daily life, e.g., music on the Internet are often of this format. However, low bit rate MP3s are sometimes transcoded to high bit rate, resulting in fake-quality MP3, to seek commercial benefit. This paper presents a method to defeat this kind of fake-quality MP3. Our experimental study and theoretical analysis have demonstrated that there are fewer MDCT coefficients of small values in fake-quality MP3 than in normal MP3. We use the numbers of small-value MDCT coefficients as features to discriminate fake-quality MP3 from normal MP3. Experimental results show the effectiveness of the proposed method. To our best knowledge, this work is the first one to find out fake-quality MP3.
AB - MP3 is the most popular audio format nowadays in our daily life, e.g., music on the Internet are often of this format. However, low bit rate MP3s are sometimes transcoded to high bit rate, resulting in fake-quality MP3, to seek commercial benefit. This paper presents a method to defeat this kind of fake-quality MP3. Our experimental study and theoretical analysis have demonstrated that there are fewer MDCT coefficients of small values in fake-quality MP3 than in normal MP3. We use the numbers of small-value MDCT coefficients as features to discriminate fake-quality MP3 from normal MP3. Experimental results show the effectiveness of the proposed method. To our best knowledge, this work is the first one to find out fake-quality MP3.
KW - Digital audio forensics
KW - Fake-quality MP3
KW - MDCT coefficient
UR - http://www.scopus.com/inward/record.url?scp=70449650363&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=70449650363&partnerID=8YFLogxK
U2 - 10.1145/1597817.1597838
DO - 10.1145/1597817.1597838
M3 - Conference contribution
AN - SCOPUS:70449650363
SN - 9781605584928
T3 - MMandSec'09 - Proceedings of the 11th ACM Multimedia Security Workshop
SP - 117
EP - 124
BT - MMandSec'09 - Proceedings of the 11th ACM Multimedia Security Workshop
T2 - 11th ACM Multimedia Security Workshop, MMandSec'09
Y2 - 7 September 2009 through 8 September 2009
ER -