Abstract
Steganography aims to deliver messages in the recording space of a cover media without being noticed. Supported by the theory of music perception, note duration can be used as the recording space for a steganography method. This paper proposes a steganography method that embeds information in the duration of notes in a MIDI file and generates a new MIDI file in which the only difference lies in the note duration. Under several restrictions, the available varying range of each note is calculated, and then secret information is mapped on the change in note duration within the available range. A listening test and an evaluation on capacity are conducted to measure the transparency and capacity of the proposed method. The results reveal that the proposed method has perfect transparency with no perceptible difference in hearing, zero expansion in file size, and an effective capacity of 3.5%.
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Guan, L., Jing, Y., Li, S., Zhang, R. (2019). A Standard MIDI File Steganography Based on Music Perception in Note Duration. In: Li, W., Li, S., Shao, X., Li, Z. (eds) Proceedings of the 6th Conference on Sound and Music Technology (CSMT). Lecture Notes in Electrical Engineering, vol 568. Springer, Singapore. https://doi.org/10.1007/978-981-13-8707-4_9
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DOI: https://doi.org/10.1007/978-981-13-8707-4_9
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