| Presentation | 2007-05-24 A Fundamental Frequency Estimator Using Notch Filter Keitaro HOSHIBA, Arata KAWAMURA, Youji IIGUNI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Fundamental frequency estimation is indispensable to copy down a melody. In this paper, we propose a new fundamental frequency estimator using a band-pass filter (BPF) which is obtained as an inverse notch filter. The BPF can extract the fundamental frequency of a melody when the fundamental frequency and the center frequency of the BPF are the same. Hence, we can estimate the fundamental frequency from an observed signal by using a parallel BPF whose center frequencies correspond to the frequencies of pitch names. Simulation results show that the proposed fundamental frequency estimator based on the parallel BPF has a high estimation accuracy whether a noise exists of not. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | music transcription / fundamental frequency estimation / notch filter / pitch |
| Paper # | EA2007-12,SIP2007-16 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2007/5/17(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Engineering Acoustics (EA) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | A Fundamental Frequency Estimator Using Notch Filter |
| Sub Title (in English) | |
| Keyword(1) | music transcription |
| Keyword(2) | fundamental frequency estimation |
| Keyword(3) | notch filter |
| Keyword(4) | pitch |
| 1st Author's Name | Keitaro HOSHIBA |
| 1st Author's Affiliation | Department of Systems Innovation, Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Arata KAWAMURA |
| 2nd Author's Affiliation | Department of Systems Innovation, Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Youji IIGUNI |
| 3rd Author's Affiliation | Department of Systems Innovation, Graduate School of Engineering Science, Osaka University |
| Date | 2007-05-24 |
| Paper # | EA2007-12,SIP2007-16 |
| Volume (vol) | vol.107 |
| Number (no) | 62 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |