Abstract-In this paper, we suggest a novel group delay based method for the onset detection of pitched instruments. It is proposed to approach the problem of onset detection by examining three dimensions separately: phase (i.e., group delay), magnitude and pitch. The evaluation of the suggested onset detectors for phase, pitch and magnitude is performed using a new publicly available and fully onset annotated database of monophonic recordings which is balanced in terms of included instruments and onset samples per instrument, while it contains different performance styles. Results show that the accuracy of onset detection depends on the type of instruments as well as on the style of performance. Combining the information contained in the three dimensions by means of a fusion at decision level leads to an improvement of onset detection by about 8% in terms of F-measure, compared to the best single dimension.
Bu çalı mada, literatürde ilk defa klasik Türk müzi i için bir notaya dökme sistemi sunulmaktadır. Önce Türk müzi inin, sistem tasarımında dikkate alınan, Batı müzi inden farklı özellikleri özetlenmektedir. Daha sonra, sistemi olu turan i aret i leme adımları olan; ses i aretinden frekans ölçümü, frekans da ılımlarından otomatik karar sesi frekans tespiti ve makam tanıma, frekans bilgisinin aralık bilgisine dönü türülmesi, frekans ve süre nicemleme adımları, birbiriyle ili kili bir ekilde özetlenerek ve sistem içerisindeki fonksiyonları açıklanarak sunulmu tur.
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