Comparison of Methods for Estimating the Propagation Delay of Acoustic Signals in an Audience Service for Live Events

Nophut M, Hupke R, Preihs S, Peissig J. Comparison of Methods for Estimating the Propagation Delay of Acoustic Signals in an Audience Service for Live Events. In: AES Convention 144. Audio Engineering Society; 2018. Paper 9975. Available from: https://aes.org/publications/elibrary-page/?id=19492

@inproceedings{Nophut2018_19492,
  author = {Nophut, Marcel and Hupke, Robert and Preihs, Stephan and Peissig, Jürgen},
  title = {{Comparison of Methods for Estimating the Propagation Delay of Acoustic Signals in an Audience Service for Live Events}},
  booktitle = {AES Convention 144},
  note = {Paper 9975},
  year = {2018},
  month = may,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=19492}
}

TY  - CPAPER
TI  - Comparison of Methods for Estimating the Propagation Delay of Acoustic Signals in an Audience Service for Live Events
AU  - Nophut, Marcel
AU  - Hupke, Robert
AU  - Preihs, Stephan
AU  - Peissig, Jürgen
T2  - AES Convention 144
M1  - Paper 9975
PY  - 2018
DA  - 2018/05/06
UR  - https://aes.org/publications/elibrary-page/?id=19492
PB  - Audio Engineering Society
LA  - en
AB  - Our novel audience service for live events uses supplementary audio content presented through transparent headphones to enhance the traditional audio playback of a PA loudspeaker system. The service requires to estimate the propagation delay of sound waves from the PA loudspeakers to the listener in order to individually delay the supplementary audio content and temporally align it with the PA playback. This paper compares two different correlation-based methods regarding their computational complexity and their performance in estimating the above mentioned time delay using realistic recordings of music and speech samples. Additional measures, that make the estimation more robust, were developed and are also presented. Typical issues like tonal components, room reflections, crosstalk, and a large number of correlation lags are addressed.
ER  -