{"id":9953,"date":"2010-09-24T14:21:04","date_gmt":"2010-09-24T14:21:04","guid":{"rendered":"https:\/\/www.its.ac.id\/news\/2010\/09\/24\/eksplorasi-suara-gamelan-dalam-disertasi\/"},"modified":"2010-09-24T14:21:04","modified_gmt":"2010-09-24T14:21:04","slug":"eksplorasi-suara-gamelan-dalam-disertasi","status":"publish","type":"post","link":"https:\/\/www.its.ac.id\/news\/eksplorasi-suara-gamelan-dalam-disertasi\/","title":{"rendered":"Eksplorasi Suara Gamelan Dalam Disertasi"},"content":{"rendered":"<p>Dalam dunia seni tradisional Jawa, gamelan adalah salah satu jenis kebudayaan yang jarang diangkat sebagai topik penelitian bahkan oleh peneliti Indonensia sendiri. Gamelan tidak memiliki standarisasi nada sehingga sangat besar kemungkinan adanya perbedaan bunyi antara gamelan satu dengan lainnya.<\/p>\n<p> Hal ini berbeda dengan alat musik barat yang sudah teratur dan lebih mudah berkembang. \u00e2\u20ac\u0153Minimnya minat peneliti Indonesia juga disebabkan karena analisa suara gamelan sangat kompleks dan lebih rumit dari alat musik barat,\u00e2\u20ac\u009d ungkap Yoyon.<\/p>\n<p>Kenyataannya, gamelan memiliki banyak ragam. Sebut saja gamelan Jawa dan gamelan Bali yang sangat berbeda karakter dan suara musiknya. Setiap gamelan juga mempunyai jenis alat musik yang beragam, misalnya saja gong, kempul, balungan, kenong, kendang, bonang. <\/p>\n<p>Selama ini juga terdapat perbedaan notasi suara gamelan yang disebabkan oleh beberapa faktor. Misalnya saja karena perbedaan cara pembuatannya. Faktor lainnya adalah karena pengetesan kualitas notasi suara gamelan menggunakan pendengaran telinga si pembuat sendiri. Sehingga tidak ada standar baku dalam setiap nada.<\/p>\n<p>Dari sini, Yoyok&nbsp; mendapat ide untuk membuat disertasi berjudul&nbsp; Ekstraksi Suara Saron Berbasis Spectral Density Menggunakan Filter Multidimensi. Tujuan akhir penelitian yang ingin dicapainya agar suara notasi gamelan dapat dibakukan dengan standar tertentu. <\/p>\n<p>Dosen Teknik Elektro ini memilih sampel nada balungan untuk objek penelitiannya. Dimana setiap bilah penghasil suara dari balungan disebut sebagai saron. \u00e2\u20ac\u0153Terdapat banyak model saron, ada yang bilah 7, bilah 9 dan lainnya,\u00e2\u20ac\u009d imbuh pria kelahiran Surakarta ini.<\/p>\n<p>Dalam disertasi setebal 60 halaman tersebut, Yoyon melakukan&nbsp; ekstraksi&nbsp; suara saron dari lantunan suara gamelan. Diakuinya, proses ini cukup sulit karena ada suara lain yang memiliki frekuensi sama yaitu bonang. Selain suara bonang, juga ada suara harmonik dari demung yang masuk di daerah suara saron. \u00e2\u20ac\u0153Sehingga saya tidak bisa menggunakan metode <em>fixed filter kasier<\/em> untuk melakukan ekstraksi,\u00e2\u20ac\u009d ujarnya.<\/p>\n<p>Setelah ditelaah lebih lanjut, dipilihlah metode <em>short time forier transform<\/em> untuk menganalisa sinyal dalam periode waktu yang pendek. Sedangkan untuk model ekstraksi metode yang digunakan adalah <em>cross corelation<\/em>. \u00e2\u20ac\u0153Metode ini menurunkan error pada hasil suara akustik yang nyata,\u00e2\u20ac\u009d kata dosen lulusan University of Missouri, Columbia, USA ini.<\/p>\n<p>Diakui para penguji, disertasi yang diangkat Yoyon merupakan penelitian langka di ITS bahkan di Indonesia. Penelitian ini juga bisa dikatakan sebagai langkah awal para peneliti Indonesia untuk mengembangkan alat musik daerah agar menjadi lebih baik. Hasil disertasi ini sangat memungkinkan untuk dijadikan tonggak awal dalam standarisasi notasi nada musik seluruh alat musik tradisional Indonesia. (hoe\/az)<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ragam jenis suara dan bentuk gamelan menginspirasi Ir Yoyon Kusnendar Suprapto MSc dalam menyusun disertasinya yang dipromosikan pada Kamis (23\/9). Selama ini terdapat perbedaan notasi suara yang dihasilkan gamelan. Karenanya, melalui disertasi ini Yoyon berharap agar notasi suara gamelan dapat dibakukan dengan standar tertentu.<\/p>\n","protected":false},"author":1,"featured_media":9954,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[14],"tags":[],"class_list":["post-9953","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-berita-utama"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.1.1 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Eksplorasi Suara Gamelan Dalam Disertasi - ITS News<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.its.ac.id\/news\/eksplorasi-suara-gamelan-dalam-disertasi\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Eksplorasi Suara Gamelan Dalam Disertasi - ITS News\" \/>\n<meta property=\"og:description\" content=\"Ragam jenis suara dan bentuk gamelan menginspirasi Ir Yoyon Kusnendar Suprapto MSc dalam menyusun disertasinya yang dipromosikan pada Kamis (23\/9). 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