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- W2294682278 abstract "Current melody extraction approaches perform poorly on the genre of opera [1, 2]. The singer’s formant is defined as a prominent spectral-envelope peak around 3 kHz found in the singing of professional Western opera singers [3]. In this paper we introduce a novel melody extraction algorithm based on this feature for opera signals. At the front end, it automatically detects the singer’s formant according to the Long-Term Average Spectrum (LTAS). This detection function is also applied to the short-term spectrum in each frame to determine the melody. The Fan Chirp Transform (FChT) [4] is used to compute pitch salience as its high time-frequency resolution overcomes th e difficulties introduced by vibrato. Subharmonic attenuation is adopted to handle octave errors which are comm on in opera vocals. We improve the FChT algorithm so that it is capable of correcting outliers in pitch detection. The performance of our method is compared to 5 state-ofthe-art melody extraction algorithms on a newly created dataset and parts of the ADC2004 dataset. Our algorithm achieves an accuracy of 87.5% in singer’s formant detection. In the evaluation of melody extraction, it has the best performance in voicing detection (91.6%), voicing false alarm (5.3%) and overall accuracy (82.3%)." @default.
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- W2294682278 date "2014-01-01" @default.
- W2294682278 modified "2023-09-22" @default.
- W2294682278 title "Melody Extraction from Polyphonic Audio of Western Opera: A Method based on Detection of the Singer's Formant." @default.
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