| Presentation | 1994/9/6 Investigations on the variation of the acoustic transfer function caused by the environmental changes Takafumi Hikichi, Fumitada Itakura, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The variation of the acoustic transfer function affect greatly the dereverberation processing by inverse filtering,so it is necessary to adapt to the variation.We have already investigated that the time variation properties of the acoustic transfer function.It was verified that the change of sound velocity caused by the change of room temperature contributes seriously to the variation of the transfer function′s fine structure.In this paper, it is evaluated how the change of sound velocity affects the variation of the transfer function using linear time warping of impulse responses.Then,it is proposed that the adaptation processing of the variation of the transfer function for the pre- processing of the dereverberation processing,and its effectiveness is shown.In addition,it is shown that the variation of the transfer function can be seen to be in proportion to the difference of temperature. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | acoustic transfer function / dereverberation / change of sound velocity / linear time warping / adaptation processing |
| Paper # | SP94-40,DSP94-65 |
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| Conference Information | |
| Committee | SP |
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| Conference Date | 1994/9/6(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| 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) | Investigations on the variation of the acoustic transfer function caused by the environmental changes |
| Sub Title (in English) | |
| Keyword(1) | acoustic transfer function |
| Keyword(2) | dereverberation |
| Keyword(3) | change of sound velocity |
| Keyword(4) | linear time warping |
| Keyword(5) | adaptation processing |
| 1st Author's Name | Takafumi Hikichi |
| 1st Author's Affiliation | Department of Electronics and Information,School of Engineering, Nagoya University() |
| 2nd Author's Name | Fumitada Itakura |
| 2nd Author's Affiliation | Department of Electronics and Information,School of Engineering, Nagoya University |
| Date | 1994/9/6 |
| Paper # | SP94-40,DSP94-65 |
| Volume (vol) | vol.94 |
| Number (no) | 215 |
| Page | pp.pp.- |
| #Pages | 8 |
| Date of Issue | |