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Designing a spherical microphone array for the directional analysis of reflections and reverberation

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Academic year: 2021

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Figure

Fig. 1: Illustration of importance of beamwidth for resolving incident sound. The
Fig. 2: Receiver beam patterns used in room simulator: (a)–(g) first 7 orders of hypercardioid, and (h) a 1 o -wide cone.
Fig. 3: Simulated received energy patterns for first 7 orders of hypercar- hypercar-dioid, and 1 o -cone receiver
Fig. 5: Cubic array designed assuming 0.1 dB sensor noise. (a) Array geometry (sphere  di-ameter 17.3 cm, microphone spacing 10 cm), (b) 1 kHz beam pattern for optimized design (solid curve) and delay-and-sum design  (bro-ken curve), (c) directional gain f
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