A device for playing audio clips, a method of playing audio clips and a data storage medium having stored thereon computer code means for instructing a computer system to execute a method of playing audio clips. The device comprising a processor scalable in voltage, frequency, or both; a switch for selecting one of a plurality of output modes of the device; and a controller for controlling the processor to decode input joint/MS stereo mode encoded audio data representing said audio clip based on the selected output mode; wherein each output mode defines a number, m, of subbands of an M channel and a number, s, of subbands of an S channel of the joint/MS stereo mode encoded data; and the controller controls the processor to decode and store only data from the m and s subbands for playback.