SMP-PHAT: Lightweight DoA Estimation by Merging Microphone Pairs
Sound
2022-03-29 v1 Audio and Speech Processing
Abstract
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.
Keywords
Cite
@article{arxiv.2203.14409,
title = {SMP-PHAT: Lightweight DoA Estimation by Merging Microphone Pairs},
author = {François Grondin and Marc-Antoine Maheux and Jean-Samuel Lauzon and Jonathan Vincent and François Michaud},
journal= {arXiv preprint arXiv:2203.14409},
year = {2022}
}
Comments
Submitted to Interspeech 2022