Patent ID: 6061655
Filing Date: 2000-05-09
Classification: G11B

Abstract:
An audio device which comprises:a first output buffer configured to buffer a first sequence of digital audio samples and configured to provide the first sequence of digital audio samples to a first output device for playback at a first sampling frequency;an arithmetic logic unit (ALU) coupled to the first output buffer to retrieve the first sequence of digital audio samples and configured to convert the first sequence of digital audio samples into a decimated sequence of digital audio samples;a second output buffer coupled to the ALU to buffer the decimated sequence of digital audio and configured to provide the decimated sequence of digital audio samples to a second output device for playback at a reduced sampling frequency; anda control module configured to receive a sample request signal and responsively provide first and second address signals to the first and second output buffers, respectively, to indicate which digital audio samples are next provided to the first and second output devices, wherein the control module implements a first state machine to determine the first address signal and a second, separate state machine to determine the second address signal.