DeepSound is a steganography tool that enables you to hide secret data in an audio file. After your secret data is inserted, the audio file can be played as usual - there is no indication that it contains any hidden information (except for an increase in file size). You can hide any type of data inside the audio file, including text documents, images, videos etc.
The program can also password protect your secret data with 256-bit AES encryption for added security. To access the data in a carrier file, simply browse to the location with the DeepSound file browser and right-click on the audio file to extract your secret file(s).
DeepSound supports WAV, Flac and Audio CD formats.