this program steganographs an image into another image. however the host and the specimen are image equivalents of audio signals which are rearranged to form an image. thus effectively it is audio steganography

Various types of materials and formats can be used as a carrier like magazines, wooden tablets, image, text or an audio/video file. Images due to their increasing use on the internet and having high redundancy bits are the most popular cover object

Steghide is a steganography program that is able to hide data in various kinds of image- and audio-files. The color- respectivly sample-frequencies are not changed thus making the embedding resistant against first-order statistical tests.