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Digitisation and Representation of Audio and Video Signals

  • Ulrich Reimers

Abstract

The sources of the audio and video signals, such as microphone and camera, produce analogue signals, i.e. signals of an unlimited range of values, progressing continuously in the time domain. For digital processing the signals must be discretely sampled at regular intervals, quantised and coded. These processes are subsumed under the term ‘digitisation’ and are performed by analogue-to-digital converters (ADCs). Reconversion into analogue signals is carried out by digital-to-analogue converters (DACs).

Keywords

Analogue Signal Audio Signal Clock Frequency Quantisation Error Video Signal 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2001

Authors and Affiliations

  • Ulrich Reimers
    • 1
  1. 1.Institut für NachrichtentechnikTechnische Universität BraunschweigBraunschweigDeutschland

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