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Localization of distinct reflections in rooms using spherical microphone array eigenbeam processing
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10.1121/1.3688476
/content/asa/journal/jasa/131/4/10.1121/1.3688476
http://aip.metastore.ingenta.com/content/asa/journal/jasa/131/4/10.1121/1.3688476

Figures

Image of FIG. 1.
FIG. 1.

Experimental setup. (a) Room 1 and (b) room 2.

Image of FIG. 2.
FIG. 2.

(Color online) EB-DAS output power spectrum for room 1. (a) Narrowband EB-DAS and (b) EB-DAS with frequency smoothing.

Image of FIG. 3.
FIG. 3.

(Color online) PWD output power spectrum for room 1. (a) Narrowband PWD and (b) PWD with frequency smoothing.

Image of FIG. 4.
FIG. 4.

(Color online) EB-MVDR output power spectrum for room 1. (a) Narrowband EB-MVDR, (b) EB-MVDR with frequency smoothing, and (c) EB-MVDR with frequency smoothing and WNG control.

Image of FIG. 5.
FIG. 5.

(Color online) EB-MUSIC output power spectrum for room 1. (a) Narrowband EB-MUSIC and (b) EB-MUSIC with frequency smoothing.

Image of FIG. 6.
FIG. 6.

(Color online) EB-DAS output power spectrum for room 2. (a) Narrowband EB-DAS and (b) EB-DAS with frequency smoothing.

Image of FIG. 7.
FIG. 7.

(Color online) PWD output power spectrum for room 2. (a) Narrowband PWD and (b) PWD with frequency smoothing.

Image of FIG. 8.
FIG. 8.

(Color online) EB-MVDR output power spectrum for room 2. (a) Narrowband EB-MVDR, (b) EB-MVDR with frequency smoothing, and (c) EB-MVDR with frequency smoothing and WNG control.

Image of FIG. 9.
FIG. 9.

(Color online) EB-MUSIC output power spectrum for room 1. (a) Narrowband EB-MUSIC and (b) EB-MUSIC with frequency smoothing.

Tables

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TABLE I.

Ground truth DOAs of the direct sound and reflections in room 1. The loudspeaker position is shown in Fig. 1(a).

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TABLE II.

Ground truth DOAs of the direct sound and reflections in room 2. The loudspeaker position is shown in Fig. 1(b).

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TABLE III.

DOA localization results, , in room 1.

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TABLE IV.

DOA localization results, , in room 2.

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TABLE V.

DOA deviations, , from ground truth in room 1, in degrees.

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TABLE VI.

DOA deviations, , from ground truth in room 2, in degrees.

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TABLE VII.

DOA deviations of EB-MVDR for the three strongest reflections for eight different loudspeaker positions (P1–P8) in room 1. SNR = 5 dB.

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TABLE VIII.

DOA deviations of EB-MVDR for the four strongest reflection localizations for two different measurement SNRs (SNR=3 and 17 dB) in room 2.

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TABLE IX.

Localization results for EB-ESPRIT in room 1 and room 2.

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/content/asa/journal/jasa/131/4/10.1121/1.3688476
2012-04-12
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Localization of distinct reflections in rooms using spherical microphone array eigenbeam processing
http://aip.metastore.ingenta.com/content/asa/journal/jasa/131/4/10.1121/1.3688476
10.1121/1.3688476
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