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A positive answer is given, and it is shown that all that one has to assume is that the resonator chamber is bounded and that its boundary is <jats:inline-formula><jats:alternatives><jats:tex-math>$${{\\mathcal {C}}}^2$$<\/jats:tex-math><mml:math xmlns:mml=\"http:\/\/www.w3.org\/1998\/Math\/MathML\">\n                  <mml:msup>\n                    <mml:mrow>\n                      <mml:mi>C<\/mml:mi>\n                    <\/mml:mrow>\n                    <mml:mn>2<\/mml:mn>\n                  <\/mml:msup>\n                <\/mml:math><\/jats:alternatives><\/jats:inline-formula>. The proof is constructive, providing a universal algorithm which only needs to access the values of the characteristic function of the chamber at any requested point.\n<\/jats:p>","DOI":"10.1007\/s10208-021-09509-9","type":"journal-article","created":{"date-parts":[[2021,6,9]],"date-time":"2021-06-09T20:03:51Z","timestamp":1623269031000},"page":"697-731","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":9,"title":["Computing the Sound of the Sea in a Seashell"],"prefix":"10.1007","volume":"22","author":[{"given":"Jonathan","family":"Ben-Artzi","sequence":"first","affiliation":[]},{"given":"Marco","family":"Marletta","sequence":"additional","affiliation":[]},{"given":"Frank","family":"R\u00f6sler","sequence":"additional","affiliation":[]}],"member":"297","published-online":{"date-parts":[[2021,6,9]]},"reference":[{"issue":"3\u20134","key":"9509_CR1","first-page":"129","volume":"114","author":"H Ammari","year":"2019","unstructured":"H.\u00a0Ammari, K.\u00a0Imeri, and W.\u00a0Wu. 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