| Paper Abstract and Keywords |
| Presentation |
2006-10-27 11:00
Improvement of nonlinear characteristics using an adaptive filtering for Dynamic Loudspeaker
Kenji Ishiduka, Takayuki Kobayashi, Kenji Furihata (Shinshu Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
Electrodynamic loudspeakers have inherent nonlinearities generating harmonic and intermodulation distortion in the reproduced sound. Some applications of active noise control require loudspeakers having low weight, small size, high efficiency to produce amplitudes at low frequencies. In these cases the signal distortions produced by the loudspeaker's nonlinearities impair the compensation of the primary sound. However, recent activities in loudspeaker research have developed physical models for the nonlinear mechanisms. They are the basis for digital controllers which compensate actively for loudspeaker distortion by preprocessing the electric input signal inversely. In this paper, an improvement of the loudspeaker's nonlinearities using an adaptive filter is discussed whether NLMS is suitable for digital controller of the nonlinearity by a simulation and an experimental study. From the
results, it can be found that this system cannot improve the loudspeaker's nonlinearity. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
fullrange loudspeaker / adaptive filter / linearity / nonlinearity / / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 313, EA2006-63, pp. 13-18, Oct. 2006. |
| Paper # |
EA2006-63 |
| Date of Issue |
2006-10-20 (EA) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
EA |
| Conference Date |
2006-10-26 - 2006-10-27 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Nagaoka Univ. Tech. |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
General |
| Paper Information |
| Registration To |
EA |
| Conference Code |
2006-10-EA |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Improvement of nonlinear characteristics using an adaptive filtering for Dynamic Loudspeaker |
| Sub Title (in English) |
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| Keyword(1) |
fullrange loudspeaker |
| Keyword(2) |
adaptive filter |
| Keyword(3) |
linearity |
| Keyword(4) |
nonlinearity |
| Keyword(5) |
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| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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| 1st Author's Name |
Kenji Ishiduka |
| 1st Author's Affiliation |
Shinshu University (Shinshu Univ.) |
| 2nd Author's Name |
Takayuki Kobayashi |
| 2nd Author's Affiliation |
Shinshu University (Shinshu Univ.) |
| 3rd Author's Name |
Kenji Furihata |
| 3rd Author's Affiliation |
Shinshu University (Shinshu Univ.) |
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| Speaker |
Author-1 |
| Date Time |
2006-10-27 11:00:00 |
| Presentation Time |
30 minutes |
| Registration for |
EA |
| Paper # |
EA2006-63 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.313 |
| Page |
pp.13-18 |
| #Pages |
6 |
| Date of Issue |
2006-10-20 (EA) |
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