| Presentation | 2017-03-02 [Poster Presentation] Study of room acoustic characteristics calculation from an impulse response measured at high sound pressure Ryo Takebayashi, Yutaka Kaneda, |
|---|---|
| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | When measuring an impulse response, it is possible to reduce the effect of ambient noise by measuring at a high sound pressure. However, the nonlinear distortion of a loudspeaker occurs during measurement at a high sound pressure. In this study, we first measured the nonlinear distortion of an impulse response at a high sound pressure that exceeded the rating of the measuring equipment. Harmonic distortion and fundamental wave distortion were observed as nonlinear distortion. However, we showed that it is possible to calculate room acoustic characteristics while avoiding the effect of distortion by using a signal, such as Log-SS, that can separate harmonic distortion. We also examined the possible problems occurring in measurement at a high sound pressure. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | impulse response / harmonic distortion / high sound pressure / swept sine signal / loudspeaker |
| Paper # | EA2016-116,SIP2016-171,SP2016-111 |
| Date of Issue | 2017-02-22 (EA, SIP, SP) |
| Conference Information | |
| Committee | SP / SIP / EA |
|---|---|
| Conference Date | 2017/3/1(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | Okinawa Industry Support Center |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Speech, Engineering/Electro Acoustics, Signal Processing, and Related Topics |
| Chair | Kazunori Mano(Shibaura Inst. of Tech.) / Makoto Nakashizuka(Chiba Inst. of Tech.) / Mitsunori Mizumachi(Kyushu Inst. of Tech.) |
| Vice Chair | Hiroki Mori(Utsunomiya Univ.) / Masahiro Okuda(Univ. of Kitakyushu) / Shogo Muramatsu(Niigata Univ.) / Yoichi Haneda(Univ. of Electro-Comm.) / Suehiro Shimauchi(NTT) |
| Secretary | Hiroki Mori(Kobe Univ.) / Masahiro Okuda(Shizuoka Univ.) / Shogo Muramatsu(Ritsumeikan Univ.) / Yoichi Haneda(Chiba Inst. of Tech.) / Suehiro Shimauchi(KDDI R&D Labs.) |
| Assistant | Taichi Asami(NTT) / Kei Hashimoto(Nagoya Inst. of Tech.) / Osamu Watanabe(Takushoku Univ.) / Shigeto Takeoka(Shizuoka Inst. of Science and Tech.) / TREVINO Jorge(Tohoku Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Speech / Technical Committee on Signal Processing / Technical Committee on Engineering Acoustics |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | [Poster Presentation] Study of room acoustic characteristics calculation from an impulse response measured at high sound pressure |
| Sub Title (in English) | |
| Keyword(1) | impulse response |
| Keyword(2) | harmonic distortion |
| Keyword(3) | high sound pressure |
| Keyword(4) | swept sine signal |
| Keyword(5) | loudspeaker |
| 1st Author's Name | Ryo Takebayashi |
| 1st Author's Affiliation | Tokyo Denki University(Tokyo Denki Univ.) |
| 2nd Author's Name | Yutaka Kaneda |
| 2nd Author's Affiliation | Tokyo Denki University(Tokyo Denki Univ.) |
| Date | 2017-03-02 |
| Paper # | EA2016-116,SIP2016-171,SP2016-111 |
| Volume (vol) | vol.116 |
| Number (no) | EA-475,SIP-476,SP-477 |
| Page | pp.pp.195-200(EA), pp.195-200(SIP), pp.195-200(SP), |
| #Pages | 6 |
| Date of Issue | 2017-02-22 (EA, SIP, SP) |