| Presentation | 2005-11-17 Ultrasonic earphone system combined with audible band bone conduction vibration Manabu OKAMOTO, Masato MIYOSHI, Akitoshi KATAOKA, Shinichiro IWAMIYA, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | When a listener's tragus is vibrated by ultrasound with amplitude modulation of audible sound, an audible sound is perceived. We have been developing an ultrasound earphone based on this interesting phenomenon. We consider that audible sound can be produced by the ultrasound transmitted from an actuator to the external auditory canal. This earphone reproduces a sufficiently loud high-frequency band sound. On the other hand, it cannot reproduce low-frequency band sound. A bone conduction earphone that actuates facial bones by audible band vibration easily leaks sound to the air in the high-frequency band. We propose a hybrid ultrasonic earphone system combined with audible band bone conduction vibration. This system enables an earphone to transmit sound that is not close to a listener's ears, and sound leakage is small. We report the structure of this system and this characteristic. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Ultrasound / Bone conduction earphone / Headphone |
| Paper # | EA2005-72 |
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| Conference Information | |
| Committee | EA |
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| Conference Date | 2005/11/10(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 | 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) | Ultrasonic earphone system combined with audible band bone conduction vibration |
| Sub Title (in English) | |
| Keyword(1) | Ultrasound |
| Keyword(2) | Bone conduction earphone |
| Keyword(3) | Headphone |
| 1st Author's Name | Manabu OKAMOTO |
| 1st Author's Affiliation | NTT Cyber Space Laboratories:Facuulty of Design, Kyushu University Shiobaru() |
| 2nd Author's Name | Masato MIYOSHI |
| 2nd Author's Affiliation | NTT Communication Science Laboratories |
| 3rd Author's Name | Akitoshi KATAOKA |
| 3rd Author's Affiliation | NTT Cyber Space Laboratories |
| 4th Author's Name | Shinichiro IWAMIYA |
| 4th Author's Affiliation | Facuulty of Design, Kyushu University Shiobaru |
| Date | 2005-11-17 |
| Paper # | EA2005-72 |
| Volume (vol) | vol.105 |
| Number (no) | 403 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |