Using AEC with Multiple Microphones

For optimal conferencing performance, proper management of your acoustic echo cancellation (AEC) is essential.

Always maintain a 1:1 relationship between microphones and AEC channels.

When multiple microphone signals are combined before reaching the AEC processor:

• The AEC algorithm struggles to accurately model room acoustics

• Convergence time increases significantly

• Far-end participants experience audible echo

• Overall conference quality degrades

AEC works by creating an acoustic model between the loudspeaker and each microphone. When signals are mixed pre-AEC, the processor must attempt to estimate a complex combination of multiple room impulse responses simultaneously—a task that dramatically reduces effectiveness.

• Solaro QR1-UC: 16 channels of AEC

• Solaro FR1: 16 channels of AEC

For installations requiring more than 16 microphones, add one additional processor for each additional 16 channels needed.