Real-time loudspeaker distance estimation with stereo audio

Jesper Kjcer Nielsen, Nikolay D. Gaubitch, Richard Heusdens, Jorge Martinez, Tobias Lindstrøm Jensen

Research output: Chapter in Book/Conference proceedings/Edited volumeConference contributionScientificpeer-review

1 Citation (Scopus)


Knowledge on how a number of loudspeakers are positioned relative to a listening position can be used to enhance the listening experience. Usually, these loudspeaker positions are estimated using calibration signals, either audible or psycho-acoustically hidden inside the desired audio signal. In this paper, we propose to use the desired audio signal instead. Specifically, we treat the case of estimating the distance between two loudspeakers playing back a stereo music or speech signal. In this connection, we develop a real-time maximum likelihood estimator and demonstrate that it has a variance in the millimetre range in a real environment for even a modest sampling frequency.

Original languageEnglish
Title of host publicationProceedings of the 23rd European Signal Processing Conference, EUSIPCO
EditorsM. Antonini, N. Evans, C. Richard
Place of PublicationPiscataway, NJ
PublisherIEEE Society
Number of pages5
ISBN (Electronic)978-0-9928626-3-3
Publication statusPublished - 2015
EventEUSIPCO 2015: 23rd European Signal Processing Conference - Nice, France
Duration: 31 Aug 20154 Sep 2015
Conference number: 23


ConferenceEUSIPCO 2015
Internet address


  • distance estimation
  • Loudspeaker localisation
  • time-of-arrival estimation


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