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Many works have analysed and extended the original SRP method to reduce its computational cost, to allow it to locate multiple sources, or to improve its performance in adverse environments. In this work, we review over 200 papers on the SRP method and its variants, with emphasis on the SRP-PHAT method. We also present eXtensible-SRP, or X-SRP, a generalized and modularized version of the SRP algorithm which allows the reviewed extensions to be implemented. We provide a Python implementation of the algorithm which includes selected extensions from the literature.<\/jats:p>","DOI":"10.1186\/s13636-024-00377-z","type":"journal-article","created":{"date-parts":[[2024,11,12]],"date-time":"2024-11-12T12:25:51Z","timestamp":1731414351000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["Steered Response Power for Sound Source Localization: a tutorial review"],"prefix":"10.1186","volume":"2024","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4502-5407","authenticated-orcid":false,"given":"Eric","family":"Grinstein","sequence":"first","affiliation":[]},{"given":"Elisa","family":"Tengan","sequence":"additional","affiliation":[]},{"given":"Bilgesu","family":"\u00c7akmak","sequence":"additional","affiliation":[]},{"given":"Thomas","family":"Dietzen","sequence":"additional","affiliation":[]},{"given":"Leonardo","family":"Nunes","sequence":"additional","affiliation":[]},{"given":"Toon","family":"van Waterschoot","sequence":"additional","affiliation":[]},{"given":"Mike","family":"Brookes","sequence":"additional","affiliation":[]},{"given":"Patrick A.","family":"Naylor","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2024,11,12]]},"reference":[{"key":"377_CR1","doi-asserted-by":"crossref","unstructured":"S. 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