The human auditory system and audio

Detecting Malicious Devices in IPSEC Traffic with IPv4 Steganography

“…Remarkably, steganographic techniques have found favor with images [5], allowing data to be discreetly included in an image's pixel structure without compromising the image's perceived quality. Audio [6] has also emerged as a significant information carrier in steganography. Many ways to conceal data, including an audio signal's frequency and amplitude components, have been tested.…”

“…Many ways to conceal data, including an audio signal's frequency and amplitude components, have been tested. This medium adds another degree of camouflage because some frequencies cannot be heard by the human auditory system [6]. Moreover, steganography in videos [7] has been made possible by developing computational powers and its extensive data capacity.…”