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Main Title: A Mobile App for Geolocalized, Dynamic Binaural Synthesis
Author(s): Hädrich, Markus
Lindau, Alexander
Weinzierl, Stefan
Type: Conference Object
Language Code: en
Abstract: Today, technical evolution and dissemination of smartphones have reached a point where powerful mobile computing has become virtually ubiquitous. Additionally, devices are equipped with a multitude of sensors and interfaces allowing for a – potentially continuous – acquisition of optical and acoustical data, the continued determination of bearing and position, and mobile network connectivity. Therefore, smartphones are increasingly used as a platform for mobile augmented or virtual reality applications. As a result, we report here on the development of an augmented audio application featuring Dynamic Binaural Synthesis (DBS) on iOS devices. The purpose of the app is to interactively render singular sound sources – sound spots virtually attached to fixed geographical positions – binaurally via headphones, while (currently) using the smartphone’s sensors to indicate the user’s viewing direction. With the help of a 2D map view, users may place multiple such sound spots in the actual (outdoor) environment - this way, for instance, creating augmented reality soundwalks. A proximity criterion is used to automatically switch the audio rendering process between different sound spots. During the realization of this application, special emphasis has been placed on finding suitable trade-offs between both a still cost-effective and plausible acoustic simulation. Thereby, obtaining an accurate continuous geographical position has emerged as a challenge.
Issue Date: 2016
Date Available: 12-Aug-2019
DDC Class: 534 Schall und verwandte Schwingungen
620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Subject(s): dynamic binaural synthesis
head-related transfer function
head-related impulse respons
Assisted Global Positioning System
Proceedings Title: Proceedings of the Inter-Noise 2016 : 45th International Congress and Exposition on Noise Control Engineering : towards a quiter future : August 21-24, 2016, Hamburg
Editor: Kropp, Wolfgang
von Estorff, Otto
Schulte-Fortkamp, Brigitte
Publisher: Deutsche Gesellschaft für Akustik e.V.
Publisher Place: Berlin
Page Start: 822
Page End: 825
ISBN: 978-3-939296-11-9
Appears in Collections:FG Audiokommunikation » Publications

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