| Summary: | 碩士 === 國立臺灣科技大學 === 資訊管理系 === 97 === Onset detection for singing voices is an important but difficult problem for note detection in query by singing/humming or music transcription. The purpose of this paper is to improve the performance of onset detection for singing/humming voice. This paper proposes an onset detection scheme which utilizes the moving average filtering in detection function to accentuate the uprising margins, while making use of discriminative classifier based on Gaussian mixture models to combine relevant features of adjacent peaks in final decision. Experimental results show that the onset detection scheme can improve the detection performance significantly, and achieve 77.7% of precision rate and 76.9% of recall rate at 77.4% of F-measure.
This onset detection scheme was further combined with the query by singing/humming system, and experimental results show that, the onset detection to detect note can effectively improve the performance of music search. The MRR value can be increased from 0.53 to 0.56 and increase the top-15 hit rate from 67% to 70% when onset detection is applied to the note detection.
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