A method of hiding non-audio data in audio data of multiple audio channels which can be applied to first and second audio channel. Audio data segments from the audio data of the multiple audio channels are retrieved and pairs of target audio data segments associated with the first channel and the second channel are selected. The target audio data segments are divided into a plurality of audio frames based on sampling points. An entropic value of each of the audio frames is calculated and the audio data of the audio frames is adjusted to embed the non-audio data into the calculated and recorded entropic differences within the pairing of audio frames respectively associated with the first and second audio channels.