🌐EnglishEnglishDeutschEspañolFrançaisItalianoPolskiTürkçeРусский한국어中文日本語EntityQ1635737· pop 12· linked from 64 articlesmel scaleconceptual scaleWikidata factsImageAkustik hz2mel.jpgSources (2)wikidata.orgru.wikipedia.orgvia Wikidata · CC0Available in 11 languagesEspañolFrançais中文日本語ItalianoCatalanHebrewPolskiTürkçe한국어via Wikidata sitelinks · CC0Connectionsequal-loudness contourEntityGoogleOrganizationCategoriesPsychoacousticsScales