Patent ID: 7848930

Claim:
A method of controlling audio rate adjustment in a device having a first and a second audio/video decoder, comprising: generating, in a first transport processor of the first audio/video decoder, a first time base that controls a display timing of audio in a first transport stream received by the first audio/video decoder; generating, by a first numerical controlled oscillator, a first sample rate clock using said first time base and a first sampling rate determined from said first transport stream; generating, in a second transport processor of the second audio/video decoder, a second time base that controls a display timing of audio in a second transport stream received by the second audio/video decoder; generating, by a second numerical controlled oscillator, a second sample rate clock using said second time base and a second sampling rate determined from said second transport stream; decoding, in the first audio/video decoder, first audio samples carried in said first transport stream; decoding, in the second audio/video decoder, second audio samples carried in said second transport stream; displaying said second decoded audio samples from said second transport stream, in place of said first decoded audio samples, in accordance with a third sample rate clock generated using said first time base and said second sampling rate determined from said second transport stream; and adjusting said second decoded audio samples based on an indication that said first sample rate clock is different from said third sample rate clock.