Patent ID: 7418380
Filing Date: 2008-08-26
Classification: G10L,H04B

Abstract:
1. In a digital decoder unit, a method for reducing audio frame over-run comprising the steps of: a) receiving an audio encoded bitstream, decoding said encoded bitstream and storing decoded audio frames into an audio output buffer; b) responsive to an audio mute signal, causing an audio bitstream of said decoder unit to zero, said step b) causing entries in said audio output buffer to zero starting from an entry position pointed to by a write pointer associated with said audio output buffer; and c) directly zeroing a plurality of entries of said audio output buffer in response to said audio mute signal, said plurality of entries being a few entries away from a read pointer of said audio output buffer, said read pointer following said write pointer and wherein as a result of step b) and step c), only a predetermined number of audio output frames are guaranteed to be played after said audio mute signal is detected.