Patent ID: 8553892

Claim:
An electronic device comprising: a dual-channel digital audio source configured to provide a first digital audio channel signal and a second digital audio channel signal from a digital audio file; data processing circuitry configured to receive the first digital audio channel signal and the second digital audio channel signal and to output a monaural digital audio signal that includes components of the first digital audio channel signal and the second digital audio channel signal, wherein the data processing circuitry is configured to determine the monaural digital audio signal based at least in part on a phase relationship between a portion of the first digital audio channel signal of a frequency band and a portion of the second digital audio channel of the frequency band, wherein the monaural digital audio signal is a summation of the components of the first and second digital audio channel signals only when a power of the summation of the first digital audio channel signal and the second digital audio channel signal exceeds a power of a difference between the first digital audio channel signal and the second digital audio channel signal; and an output device configured to receive and output the monaural digital audio signal.