Encryption and Decryption of Audio by Changing Properties and Noise Reduction


Authors : Nirzar Barua; Md. Ahasan Kabir

Volume/Issue : Volume 7 - 2022, Issue 9 - September

Google Scholar : https://bit.ly/3IIfn9N

Scribd : https://bit.ly/3rrNxbo

DOI : https://doi.org/10.5281/zenodo.7143298

- Encryption, the process of data hiding at the time of transmission, gives security to messages. Audio signal is vastly used for communication now a days. This paper is about an algorithm of audio file encryption in image format by usingprivate keyand decryption into audio. Audio encryption which is bulky in size can be overcome by processing audio signal to image. It ensures secured transmission of data by changing its features. Here, in this algorithm, dimensions of raw datahave been changed and the reshaped format has made signal privy. This technique provides lossless data processing as well as renders the choice of selection of any types of audio file (mp3, wave, m4a etc.) in mono or stereo. Here security enhancementis done by using private key and changing properties of data from audio to image. Use of compression adds white noise which can be removed by using proper filter. It gives improved SNR, more than 18dBafter reception. For better communication system, this process is easier and better than other encryption techniques

Keywords : Encryption, Decryption, Random private key, Mono, Stereo, Filter, SNR.

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Paper Submission Last Date
29 - February - 2024

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