Synchronization of audio and video streams

Abstract

A method includes synchronizing audio and video streams including applying a time-stamp to a block of a audio buffer in an audio path; applying a time-stamp to a block of a video buffer in a video path; reading the block from the audio buffer; reading the block from the video buffer; and aligning the audio path and the video path by introducing a variable delay to one member selected from the group consisting of the audio path or the video path to substantially equalize the end-to-end delay of both the audio path and the video path. An apparatus includes a digital to analog convertor for synchronizing audio and video including an audio buffer in an audio path, each block of the audio buffer having an audio time-stamp; and a video buffer in a video path, each block of the video buffer having a video time-stamp, wherein the audio path and the video path are aligned by introducing a variable delay to one member selected from the group consisting of the audio path or the video path to substantially equalize the end-to-end delay of both the audio path and the video path.

Dependencies are inferred from the claim text.