Sound and the City: Current Perspectives on Acoustic Geo-Sensing in Urban Environment

Acoustic geo-sensing deals with the derivation of spatial information from audio data. Motivated by the rising field of sensing information in (smart) cities, we present current perspectives and a methodological update on the acoustic-based solution of recognition problems in a complex urban real-wo...

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Veröffentlicht in:Acta acustica united with Acustica 2019, Vol.105 (5), p.766-778
Hauptverfasser: Pokorny, Florian B., Fišer, Moritz, Graf, Franz, Marschik, Peter B., Schuller, Björn W.
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container_issue 5
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container_title Acta acustica united with Acustica
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creator Pokorny, Florian B.
Fišer, Moritz
Graf, Franz
Marschik, Peter B.
Schuller, Björn W.
description Acoustic geo-sensing deals with the derivation of spatial information from audio data. Motivated by the rising field of sensing information in (smart) cities, we present current perspectives and a methodological update on the acoustic-based solution of recognition problems in a complex urban real-world scenario. In particular, we examine a static and a sequential approach for the automatic recognition of a cyclist's route between fixed endpoints, the route direction, and the route progress, solely based on the audio data recorded with a cell-phone attached to the cyclist. To this end, we introduce the freely available 'Graz Cell-phone Cycle Corpus extended' ( GC 3 + ) that consists of more than 25 h of GPS-annotated audio material recorded in the southern urban area of the city of Graz, Austria. Promising recognition results confirm basic feasibility of acoustic geo-sensing in an urban environment. The approach's theoretical potential of being generalised to support the solution of position tracking problems on a multi-dimensional urban grid gives reason for the implementation of acoustic geo-sensing methodology in a number of real-world applications.
doi_str_mv 10.3813/AAA.919357
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title Sound and the City: Current Perspectives on Acoustic Geo-Sensing in Urban Environment
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