| Presentation | 2005/6/17 Effectiveness of adopting HLDA in sound source localization using spectral intensity ratio of microphones Toshiaki KUBO, Naoya MOCHIKI, Toshiyuki SEKIYA, Tetsuji OGAWA, Tetsunori KOBAYASHI, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We propose a novel sound source localization method which gives a robust performance in various environments by Heteroscedastic LDA (HLDA). In our previous work, a robust sound localization method which does not require a strict head related transfer function (HRTF) was proposed. In this method, spectral intensity ratio of microphones mounted on the robot head is extracted as a feature parameters, and then a statistical pattern recognition is conducted. In our pattern recognition, it is well known that the degradation of performance is invoked by the difference between the training environment and the operating environment. In order to compensate the difference, a model adaptation technique, such as MLLR, is executed using a small amount of data obtained from several directions in the operating environment. However, in case that an environment in which the robot acts changes at any time, it is practically difficult to adapt in every case. Thus, in this paper, we propose the useful information extraction from feature vectors by using HLDA. In this method, nuisance information which dones not contribute to discrimination, such as reverberation is deleted and essential information can be extracted. As the result of sound source localization experiment, the robustness of the proposed method is shown. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | sound source localization / robot auditory perception / adaptation to environment / Linear Discriminant Analysis (LDA) / Heteroscedastic LDA (HLDA) |
| Paper # | SP2005-33 |
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| Committee | SP |
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| Conference Date | 2005/6/17(1days) |
| Place (in Japanese) | (See Japanese page) |
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| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Speech (SP) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Effectiveness of adopting HLDA in sound source localization using spectral intensity ratio of microphones |
| Sub Title (in English) | |
| Keyword(1) | sound source localization |
| Keyword(2) | robot auditory perception |
| Keyword(3) | adaptation to environment |
| Keyword(4) | Linear Discriminant Analysis (LDA) |
| Keyword(5) | Heteroscedastic LDA (HLDA) |
| 1st Author's Name | Toshiaki KUBO |
| 1st Author's Affiliation | Sch. of Sci. and Eng., Waseda Univ.() |
| 2nd Author's Name | Naoya MOCHIKI |
| 2nd Author's Affiliation | Sch. of Sci. and Eng., Waseda Univ. |
| 3rd Author's Name | Toshiyuki SEKIYA |
| 3rd Author's Affiliation | Sch. of Sci. and Eng., Waseda Univ. |
| 4th Author's Name | Tetsuji OGAWA |
| 4th Author's Affiliation | Sch. of Sci. and Eng., Waseda Univ. |
| 5th Author's Name | Tetsunori KOBAYASHI |
| 5th Author's Affiliation | Sch. of Sci. and Eng., Waseda Univ. |
| Date | 2005/6/17 |
| Paper # | SP2005-33 |
| Volume (vol) | vol.105 |
| Number (no) | 133 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |