digital adaptive echo-canceller for room acoustics improvement
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ID: 254887
2010
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Abstract
This paper presents a method to cancel the echoes generated by reflections in a room. The starting point is the full-band adaptive system identification method, where the unknown system is the room, providing several reflections of the sound. A sub-band filtering method is proposed and all the aspects regarding the filter banks, the structure, the number of sub-bands and the order of the required filters are analyzed. The performance is studied with respect to the provided error and the echo return loss enhancement. The asymmetric structure sub-band filtering offers a better performance than the full-band implementation. Increasing the number of sub-bands will also enhance the performance of the system.
| Reference Key |
d.2010advancesdigital
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| Authors | ;TOPA, M. D.;MURESAN, I.;KIREI, B. S.;HOMANA, I. |
| Journal | JMIR mHealth and uHealth |
| Year | 2010 |
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