 | Echo canceller for video conferences, or Howling
canceller for PA system. |
| Maximum configuration : 4ch Inputs (microphones), 4ch outputs
(speakers) with cross-talk paths. |
| Ex_Tool system configuration
(1) DSP : RU-DQ13
(1 board)
(2) AD/DA : RU-AX84 (2 boards)
(3) Chassis : 5 slots |
| Programmable parameters
(1) Number of input & output channels : 1 - 8ch
(2) Sampling frequency : 500Hs - 48KHz
(3) Analog filter cut-off frequency : 100 - 20KHz
(4) Number of Fir taps : 16K (1ch), 4K(2ch), 2K(4ch)
(5) Step-size parameter for ADF
(6) Noise level for System identification
(7) Number of cycles for System identification
(8) Modeling delay |
| Adaptive algorithm : LMS |
| Coefficient viewer |
| Windows 2000/XP/Vista/7 |
| Software name : DQec (RU-DQ13 Echo Canceller)
|
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