Seamless Audio Splicing for ISO/IEC 13818 Transport Streams

This paper addresses the processing of packetized audio elementary streams (ES) during the splicing of ISO/IEC 13818 (MPEG-2) transport streams (TS). An algorithm is developed that produces a continuous audio ES across the splicing point, avoids all noticeable audio artifacts, and hence provides a seamless audio splice without the need to decode and re-encode audio ESs. Perfect continuity with respect to the presentation time stamps (PTS) and careful management of the audio buffer level at all times lead to a glitch-free audio play-out for an unlimited number of splices. The proposed algorithm parses the packetized audio ES up to the audio access unit (AAU) level and is very simple to implement.

Print ISSN

0036-1682

Published

2001-12

Content type

Original Research

DOI

10.5594/J18015