Beaming teaching application: recording techniques for spatial xylophone sound rendering

Milos Markovic, Esben Madsen, Søren Krarup Olesen, Pablo F. Hoffmann, Dorte Hammershøi

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

Resumé

BEAMING is a telepresence research project aiming at providing a multimodal interaction between two or more participants located at distant locations. One of the BEAMING applications allows a distant teacher to give a xylophone playing lecture to the students. Therefore, rendering of the xylophone played at student's location is required at teacher's site. This paper presents a comparison of different recording techniques for a spatial xylophone sound rendering. Directivity pattern of the xylophone was measured and spatial properties of the sound field created by a xylophone as a distributed sound source were analyzed. Xylophone recordings were performed using different microphone configurations: one and two-channel recording setups are implemented. Recordings were carried out in standard listening room and in an anechoic chamber. Differences between anechoic and reverberant xylophone sound for binaural synthesis are examined. One-channel recording approach with binaural synthesis for spatial xylophone sound rendering is proposed. One channel recording is processed to define multiple source positions for xylophone width representation. Binaural synthesis was used for the reproduction. This leads to spatial improvements mainly in terms of the Apparent Source Width (ASW). Rendered examples are subjectively evaluated in listening tests by comparing them with binaural recording.
OriginalsprogEngelsk
TidsskriftThe Journal of the Acoustical Society of America
Vol/bind131
Udgave nummer4, Pt. 2
Sider (fra-til)3255-3255
ISSN0001-4966
DOI
StatusUdgivet - apr. 2012
BegivenhedAcoustics 2012 Hong Kong - Hong Kong, Kina
Varighed: 13 maj 201218 maj 2012

Konference

KonferenceAcoustics 2012 Hong Kong
LandKina
ByHong Kong
Periode13/05/201218/05/2012

Fingerprint

education
recording
acoustics
instructors
students
synthesis
anechoic chambers
research projects
lectures
directivity
sound fields
Xylophone
Rendering
Sound
Teaching
microphones
rooms
configurations
interactions

Citer dette

Markovic, Milos ; Madsen, Esben ; Olesen, Søren Krarup ; Hoffmann, Pablo F. ; Hammershøi, Dorte. / Beaming teaching application: recording techniques for spatial xylophone sound rendering. I: The Journal of the Acoustical Society of America. 2012 ; Bind 131, Nr. 4, Pt. 2. s. 3255-3255.
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Beaming teaching application: recording techniques for spatial xylophone sound rendering. / Markovic, Milos; Madsen, Esben; Olesen, Søren Krarup; Hoffmann, Pablo F.; Hammershøi, Dorte.

I: The Journal of the Acoustical Society of America, Bind 131, Nr. 4, Pt. 2, 04.2012, s. 3255-3255.

Publikation: Bidrag til tidsskriftKonferenceabstrakt i tidsskriftForskningpeer review

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AB - BEAMING is a telepresence research project aiming at providing a multimodal interaction between two or more participants located at distant locations. One of the BEAMING applications allows a distant teacher to give a xylophone playing lecture to the students. Therefore, rendering of the xylophone played at student's location is required at teacher's site. This paper presents a comparison of different recording techniques for a spatial xylophone sound rendering. Directivity pattern of the xylophone was measured and spatial properties of the sound field created by a xylophone as a distributed sound source were analyzed. Xylophone recordings were performed using different microphone configurations: one and two-channel recording setups are implemented. Recordings were carried out in standard listening room and in an anechoic chamber. Differences between anechoic and reverberant xylophone sound for binaural synthesis are examined. One-channel recording approach with binaural synthesis for spatial xylophone sound rendering is proposed. One channel recording is processed to define multiple source positions for xylophone width representation. Binaural synthesis was used for the reproduction. This leads to spatial improvements mainly in terms of the Apparent Source Width (ASW). Rendered examples are subjectively evaluated in listening tests by comparing them with binaural recording.

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