Abstract

Digital multimedia systems would not have been successful without understanding synchronization and they would not have been able to compete with analog television and radio quality if digital media such as audio and video would not have been properly synchronized. When first digital multimedia systems emerged in 1980th, it was not clear (a) what the delay thresholds should be to lip-synchronize the various media, (b) what the hardware-software frameworks should be to achieve synchronization goals, known from analog TV and radio, (c) what new synchronization primitives and protocols we need besides mutexes and semaphores to synchronize multiple modalities in multimedia systems. The in-depth answers to these questions were formulated by Ralf Steinmetz and his collaborators in the early 1990s. In his early synchronization work we find many fundamental solutions on which current multimedia systems relied in the past and rely even today. In this paper, we will first explain the early synchronization results from Steinmetz’ work and then show examples of the impact that his synchronization work had on the multimedia community.

Original languageEnglish (US)
Title of host publicationFrom Multimedia Communications to the Future Internet
Subtitle of host publicationEssays Dedicated to Ralf Steinmetz on the Occasion of His Retirement
EditorsStefan Schulte, Boris Koldehofe
PublisherSpringer
Pages20-30
Number of pages11
ISBN (Electronic)9783031718748
ISBN (Print)9783031718731
DOIs
StatePublished - Sep 2024

Publication series

NameLecture Notes in Computer Science
Volume15200
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Keywords

  • Human Synchronization Perception
  • Lip Synchronization
  • Multimedia Systems
  • Synchronization Reference Models
  • Synchronization Specification

ASJC Scopus subject areas

  • Theoretical Computer Science
  • General Computer Science

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