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image/svg+xml Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao Closed Access logo, derived from PLoS Open Access logo. This version with transparent background. http://commons.wikimedia.org/wiki/File:Closed_Access_logo_transparent.svg Jakob Voss, based on art designer at PLoS, modified by Wikipedia users Nina and Beao
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Music information retrieval

Authors: Çapar, Sedat;

Music information retrieval

Abstract

HI ÖZET Bu tez, monophonic midi dosyalarının dizinlenmesi ve sorgulanması üzerine bir sistem sunarak, müzik dosyalarından özellik çıkarma, müzik dizinleme ve sorgulama konularını içerir. Dinamik programlama algoritmasını baz alarak müzik sorgulaması için vasıflı dizin eşleme yöntemini kullanan, müzik için öznitelikli dizge eşleme (MÖDE) adım verdiğimiz yeni bir sorgulama tekniği tanıtılır. Sistem monofonik dizilerden frekans ve süre bilgilerini çıkarır. Hem monofonik hem polifonik midi dosyalan ile çalışabilir fakat bunun için polifonik midi dosyalan monofonik dizilere çevrilir. Bu bilgiler bir veritabanında saklanır. Sonra, kullanıcı sorgulama yapmak için ya metin tabanlı bir diziyi yada bir midi dosyasım girdi olarak sisteme gönderir. Gereksiz iki düzenleme işlemi kaldınldığı, merge ve split isminde iki yeni işlemci eklendiği için MVDE'nin kompleksitisi 0(ffj«)'dir. Sistem monofonik ve polifonik midi dosyalarından oluşan küçük bir veritabanında test edilmiştir. Sistem C++ kullanılarak geliştirilmiştir ve online dizinleme ve sorgulama yapmaya olanak sağlayan bir web arayüzüne sahiptir. Anahtar sözcükler : Müzik Bilişim Erişimi, Yaklaşık Dizge Eşleme, Dinamik Programlama, Öznitelikli Dizge Eşleme

11 ABSTRACT This thesis covers feature extraction from music files and music information indexing and retrieval subjects with a system for indexing and retrieval from a monophonic midi file database. It introduces a new method which we called Attributed String Matching for Music (ASM2) which is originated from dynamic programming algorithm and uses attributed string matching for music information retrieval. The system extracts pitch and duration information from monophonic sequences. It can work both monophonic and polyphonic midi files but polyphonic midi files are converted to monophonic sequences. This information is stored in a database. Then user gives either a text-based sequence or a midi file to retrieval from this database. The ASM2 has 0(mri) complexity since unnecessary edit operations are removed and two new operators, merge and split, are used. It was tested on a small database consists of both monophonic and polyphonic midi files. The system was developed using C++ and has a web interface to allow online indexing and retrieval. Keywords : Music Information Retrieval, Approximate String Matching, Dynamic Programming, Attributed String Matching

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Keywords

Computer Engineering and Computer Science and Control, Bilgisayar Mühendisliği Bilimleri-Bilgisayar ve Kontrol

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
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