An Analysis of Time Drift in Hand-Held Recording Devices

  • Mario Guggenberger
  • Mathias Lux
  • Laszlo Böszörmenyi
Part of the Lecture Notes in Computer Science book series (LNCS, volume 8935)


Automatic synchronization of audio and video recordings from events like music concerts, sports, or speeches, gathered from heterogeneous sources like smartphones and digital cameras, is an interesting topic with lots of promising use-cases. There are already many published methods, unfortunately none of them takes time drift into account. Time drift is inherent in every recording device, resulting from random and systematic errors in oscillators. This effect leads to audio and video sampling rates deviating from their nominal rates, effectively leading to different playback speeds of parallel recordings, with deltas measured up to 60 ms/min. In this paper, we present experiments and measurements showing that time drift is an existing problem that cannot be ignored when good quality results are demanded. Therefore, it needs to be taken care of in future synchronization methods and algorithms.


Audio video multimedia crowd events synchronization clock drift time drift 


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Copyright information

© Springer International Publishing Switzerland 2015

Authors and Affiliations

  • Mario Guggenberger
    • 1
  • Mathias Lux
    • 1
  • Laszlo Böszörmenyi
    • 1
  1. 1.Institute of Information TechnologyAlpen-Adria-Universität KlagenfurtKlagenfurt am WörtherseeAustria

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