 however, the output sample depth is locked at 16bits, generally due to the lack of precision already mentioned.It supports multiple channels but there seems to be an implicit limitation of stereo (2 channel) audio although the file format itself can represent up to 255 channels.The only particularly distinctive feature that sets ADX apart from alternatives like IMA ADPCM (other than having a different prediction function) is the integrated looping functionality, this enables an audio player to optionally skip backwards after reaching a single specified point in the track to create a coherent loop; hypothetically, this functionality could be used to skip forwards as well but that would be redundant since the audio could simply be clipped with an editing program instead.