Mirage: 2D Source Localization Using Microphone Pair Augmentation with Echoes

Autor:	Di Carlo, Diego, Deleforge, Antoine, Bertin, Nancy
Rok vydání:	2019
Předmět:	Electrical Engineering and Systems Science - Audio and Speech Processing Electrical Engineering and Systems Science - Signal Processing Physics - Classical Physics
Zdroj:	International Conferenze on Acoustic, Speech Signal Processing - ICASSP 2019, May 2019, Calgary, United Kingdom
Druh dokumentu:	Working Paper
Popis:	It is commonly observed that acoustic echoes hurt performance of sound source localization (SSL) methods. We introduce the concept of microphone array augmentation with echoes (MIRAGE) and show how estimation of early-echo characteristics can in fact benefit SSL. We propose a learning-based scheme for echo estimation combined with a physics-based scheme for echo aggregation. In a simple scenario involving 2 microphones close to a reflective surface and one source, we show using simulated data that the proposed approach performs similarly to a correlation-based method in azimuth estimation while retrieving elevation as well from 2 microphones only, an impossible task in anechoic settings.
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/1906.08968 Zobrazit plný text záznamu View this record from Arxiv