SMP-PHAT: Lightweight DoA Estimation by Merging Microphone Pairs

SMP-PHAT: Lightweight DoA Estimation by Merging Microphone Pairs

This paper introduces SMP-PHAT, which performs direction of arrival (DoA) of sound estimation with a microphone array by merging pairs of microphones that are parallel in space. This approach reduces the number of pairwise cross-correlation computations, and brings down the number of flops and memor...

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Hauptverfasser: Grondin, François, Maheux, Marc-Antoine, Lauzon, Jean-Samuel, Vincent, Jonathan, Michaud, François
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Computer Science - Sound
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Maheux, Marc-Antoine
Lauzon, Jean-Samuel
Vincent, Jonathan
Michaud, François
description This paper introduces SMP-PHAT, which performs direction of arrival (DoA) of sound estimation with a microphone array by merging pairs of microphones that are parallel in space. This approach reduces the number of pairwise cross-correlation computations, and brings down the number of flops and memory lookups when searching for DoA. Experiments on low-cost hardware with commonly used microphone arrays show that the proposed method provides the same accuracy as the former SRP-PHAT approach, while reducing the computational load by 39% in some cases.
doi_str_mv 10.48550/arxiv.2203.14409
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title SMP-PHAT: Lightweight DoA Estimation by Merging Microphone Pairs
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