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AEC Card
The Soundweb London Acoustic Echo Cancellation (AEC) Input Cards are designed to populate any of the four card slots on Soundweb London BLU-800, BLU-805, BLU-806, BLU-320, BLU-325, BLU-326, BLU-160 and BLU-120 devices. These AEC Input Cards enable Soundweb London devices to cancel acoustic echo arising when sound from a loudspeaker enters a microphone in the same room in a conference application.
AEC Card
The Soundweb London Acoustic Echo Cancellation (AEC) Input Cards are designed to populate any of the four card slots on Soundweb London BLU-800, BLU-805, BLU-806, BLU-320, BLU-325, BLU-326, BLU-160 and BLU-120 devices. These AEC Input Cards enable Soundweb London devices to cancel acoustic echo arising when sound from a loudspeaker enters a microphone in the same room in a conference application.
| Aec Inputs | 4 |
| Analog Inputs | Up to 16 electronically balanced on Phoenix/Combicon removable screw connectors |
| Mic/Line Inputs | Nominal gain 0dB, electronically switchable up to +48dB, in +6dB steps |
| Input Impedance | 3.5kΩ |
| Maximum Input Level | +20dBu with 0dB input gain, +8dBu with 12dB gain |
| Cmrr | >75dB at 1kHz |
| Input Noise (E.i.n.) | <-128dBu typical with 150Ω source |
| Phantom Power | 48V nominal, selectable per input |
| Pre-Aec Input Latency | 38/Fs [0.79ms@48k] |
| Post-Aec Input Latency (Original 8K Algorithm) | 2385/Fs [49.68ms@48k] |
| Post-Aec Input Latency (Full Bandwidth Algorithm) | 1609/Fs [33.52ms@48k] |
| Tail Length | 200 ms |
| Average Convergence Rate | 49dB/s (Net convergence over multiple FFT bands) |
