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Conference Paper
FPGA-Based Wide-Band Acoustic Echo Canceller
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- Authors
- In-Ki Hwang, Do-Young Kim, Chang Choo
- Issue Date
- 2013-01
- Citation
- International Conference on Embedded Systems and Intelligent Technology (ICESIT) 2013, pp.7-10
- Language
- English
- Type
- Conference Paper
- Abstract
- Acoustic echo is caused by a propagation-reflection mechanism of enclosures. Acoustic Echo Canceller (AEC) models these enclosures to eliminate echo signals. AEC is necessary function for hands-free and teleconferencing system. In this paper, a wide-band (WB) AEC system is designed using Altera® DE2 development board with full hardware modules to improve performance for faster operation. We developed WB-AEC algorithm using Matlab for performance and accuracy evaluation, and then ported it to an Altera NIOS II softconfigurable processor. As the result shows that WB-AEC system cannot operate in real-time with the NIOS II processor, we implemented the WB-AEC system using hardware logic only.
- KSP Keywords
- Accuracy evaluation, Acoustic Echo canceller, Development board, Echo signal, Hardware module, NIOS II processor, Real-time, Reflection mechanism, Wide band, hands-free