Title:
Audio Augmented Reality in Telecommunication Through Virtual Auditory Display
Audio Augmented Reality in Telecommunication Through Virtual Auditory Display
Author(s)
Gamper, Hannes
Lokki, Tapio
Lokki, Tapio
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Abstract
Audio communication in its most natural form, the face-to-face
conversation, is binaural. Current telecommunication systems often
provide only monaural audio, stripping it of spatial cues and
thus deteriorating listening comfort and speech intelligibility. In
this work, the application of binaural audio in telecommunication
through audio augmented reality (AAR) is presented. AAR aims
at augmenting auditory perception by embedding spatialised virtual
audio content. Used in a telecommunication system, AAR
enhances intelligibility and the sense of presence of the user. As
a sample use case of AAR, a teleconference scenario is devised.
The conference is recorded through a headset with integrated microphones,
worn by one of the conference participants. Algorithms
are presented to compensate for head movements and restore the
spatial cues that encode the perceived directions of the conferees.
To analyse the performance of the AAR system, a user study was
conducted. Processing the binaural recording with the proposed
algorithms places the virtual speakers at fixed directions. This improved
the ability of test subjects to segregate the speakers significantly
compared to an unprocessed recording. The proposed AAR
system outperforms conventional telecommunication systems in
terms of the speaker segregation by supporting spatial separation
of binaurally recorded speakers.
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Date Issued
2010-06
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Text
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Proceedings