Steganalysis in MIDI audio based on difference histogram
Lu Gao · 2010
To protect the security of information networks,a audio steganalysis algorithm in MIDI audio by LSB was proposed. The algorithm picked up the parameter of music velocity,studied adjacent velocity difference between the value of the score distribution and estimated the rate that hide information in MIDI files based on the statistical difference histogram features.As a theoretical derivation,hiding information in the MIDI audio was bound to change the statistical characteristics of music velocity. Experiments show that when the embedded rate is more than 10%,steganalysis in MIDI audio based on difference histograms can detect MIDI audio with 100% accuracy.