Integrating steganographic encoding in multimedia content

A method comprising:

• detecting first steganographic encoding that has been encoded in a transform domain representation of an audio signal, the first steganographic encoding including a first calibration component, the first calibration component serving to resolve signal distortion;
• using the first calibration component to locate embedded payload information in a video signal, wherein the payload information varies from a first frame to a second frame.

A method comprising:

• encoding first information in a first component of a multimedia signal, the first component comprising audio, the first information being encoded through subtle changes to data representing the first component;
• encoding second information in a second component of the multimedia signal, the second component comprising video, the second information being encoded through subtle changes to data representing the second component,
• the first information and the second information are associated.