藉由節奏動態以及韻律權重來測量節奏相似

Measuring Rhythmic Similarity by Rhythmic Dynamics and Metrical Weighted-Chronotonic Distance

李宏謨(Hung-Mo Li)

指導教授 ： 雷欽隆

共同指導教授 ： 鄭士康(Shyh-Kang Jeng)

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2013年)

https://doi.org/10.6342/NTU.2013.10760

摘要

在研究節奏間相似度的相關領域時，只考慮到了音符的位置以及音符長度，而沒有考慮到節奏動態的概念。節奏動態是詮釋節奏的方法，它指的是節奏演奏的力道(音量)變化，它可以影響聆聽者的情緒反應[1]。
考慮打擊點在節奏中的位置時，韻律權重的概念也被我們引入。韻律權重，指的是當打擊點發生在一個小節中不同的位置時，聆聽者會有不同的感知反應。一般而言，事件發生在相對重要的位置時，是較容易回憶、吸引了最多的注意力、更期待被發生，當他們有所更動時，會讓聆聽者聽出較大的差異。
在此論文所提出的演算法中結合了節奏動態以及韻律節奏的概念來建立一個測量節奏相似度的方法

關鍵字

節奏相似 ； 節奏動態 ； 韻律權重 ； 節奏感知

並列摘要

Measuring rhythmic similarity in traditional methods often focus only on the position and length of onsets, but lack of the concept of dynamics. Dynamics are means of expression, it denotes the volume (degree of loudness or softness) at which music is played, and it can affect audiences’ emotional response [1].
When considering different position of onset, we also introduce the metrical salience, which is, the perception of onsets at different positions in a music measure are different. In general, events in positions that are perceived as salient are memorized and recalled easier, attract primary attention, are more expected to occur, and, when they are verified, the audience will sense more difference. In our method, we take both dynamics and metrical salience into consider and build a new algorithm to measure the similarity between two rhythms.

並列關鍵字

Rhythmic similarity ； Dynamics ； Metrical salience ； Rhythmic perception

參考文獻

[1] K. Forney and J. Machlis. The Enjoyment of Music: An Introduction to Perceptive Listening, Eleventh Edition, W. W. Norton & Company Publishing, 2011.

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