1. A system, comprising: a first memory configured to store encoded audio data; a second memory configured to store decoded audio data; a decoder circuit configured to receive encoded audio data from the first memory and to output decoded audio data to the second memory; and control logic electrically coupled to the first memory, the second memory, and the decoder circuit, the control logic configured to receive information of an amount of encoded audio data in the first memory and an amount of decoded audio data in the second memory and to— selectively disable and enable at least a portion of the first memory by decoupling and coupling a power signal to the at least a portion of the first memory based at least in part on the amount of encoded audio data in the first memory, selectively disable and enable at least a portion of the second memory by decoupling and coupling a power signal to the at least a portion of the second memory based at least in part on the amount of decoded audio data in the second memory, and selectively disable and enable the decoder circuit based at least in part on the amount of encoded audio data in the first memory and the amount of decoded audio data in the second memory.