| Presentation | 2014-07-11 NMF-based Multiple Pitch Estimation Using Sparseness and Inter-frame Continuity Constraints Takanori FUJISAWA, Ikuo DEGAWA, Masaaki IKEHARA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes NMF-based (non-negative matrix factorization) multiple pitch estimation algorithm. The approach of NMF-based multiple pitch estimation is to decompose input magnitude spectrogram into sum of basis spectra representing individual pitches. In decomposing music signals, the amplitude of basis spectra should have sparseness, and the shape of amplitude should be continuous between neighbor temporal frames. We introduce the constraint using matrix norm to enforce these characteristic at once and propose new NMF algorithm for spectral decomposition with this constraint. The evaluation of solo piano music shows this algorithm can implement more robust pitch estimation in the place which input spectrum has certain different shape from basis spectra or the shape of input spectrum has temporal change. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Multiple pitch estimation / non-negative matrix factorization (NMF) / sparse coding |
| Paper # | CAS2014-49,VLD2014-58,SIP2014-70,MSS2014-49,SIS2014-49 |
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| Committee | MSS |
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| Conference Date | 2014/7/2(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Mathematical Systems Science and its applications(MSS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | NMF-based Multiple Pitch Estimation Using Sparseness and Inter-frame Continuity Constraints |
| Sub Title (in English) | |
| Keyword(1) | Multiple pitch estimation |
| Keyword(2) | non-negative matrix factorization (NMF) |
| Keyword(3) | sparse coding |
| 1st Author's Name | Takanori FUJISAWA |
| 1st Author's Affiliation | EEE Department, Keio University() |
| 2nd Author's Name | Ikuo DEGAWA |
| 2nd Author's Affiliation | EEE Department, Keio University |
| 3rd Author's Name | Masaaki IKEHARA |
| 3rd Author's Affiliation | EEE Department, Keio University |
| Date | 2014-07-11 |
| Paper # | CAS2014-49,VLD2014-58,SIP2014-70,MSS2014-49,SIS2014-49 |
| Volume (vol) | vol.114 |
| Number (no) | 125 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |