An Efficient Multi-Resolution Spectral Transform for Music Analysis
نویسندگان
چکیده
In this paper we focus on multi-resolution spectral analysis algorithms for music signals based on the FFT. Two previously devised efficient algorithms (efficient constantQ transform [1] and multiresolution FFT [2]) are reviewed and compared with a new proposal based on the IIR filtering of the FFT. Apart from its simplicity, the proposed method shows to be a good compromise between design flexibility and reduced computational effort. Additionally, it was used as a part of an effective melody extraction algorithm.
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