SMP-PHAT: Lightweight DoA Estimation by Merging Microphone Pairs
arXiv preprint arXiv:2203.14409, 2022•arxiv.org
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 …
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 …
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.
arxiv.org