Multi-channel AEC for microphones distributed over a wide area or several rooms is possible using several HARVEY Pro units. With HYPERMATRIX®, HARVEY Pro units can be easily integrated into a project, and handling multiple AEC channels becomes child's play.
The AEC uses a combination of adaptive filtering and Voice Activity Detection (VAD). The VAD enables the prioritization of audio signals and automatically lowers the channels on which no speech is taking place. Under difficult conditions, the adaptive filter of the AEC is supported by the VAD and ensures complete echo cancellation.