![]() The referencing should be done after any adjustments to level controls that affect the gain of the speaker. You also don’t want to pick the reference signal off in the wrong part of the signal chain, or else you’ll experience problems. It must contain the far end mic feed coming into the local room speakers. References are what get sampled – the far end signal coming back in to your local inputs – and having the proper reference signal is crucial to AEC performance. One unique thing about an AEC system is the use of references. We’ve made our Sona™ AEC more tolerant of improper gain staging, but doing it right will yield the best results. Standard best practices are the rule and an AEC system should be gain staged similarly to any well performing sound system. Doing so will make life much easier for your AEC. Let’s start with gain structure – you’ve got to understand it. ![]() Their knowledge and expertise directly affects the AEC performance, and ultimately the intelligibility of a conference session. As I mentioned in my previous post, harnessing the true power of Acoustic Echo Cancellation (AEC) lies in the hands of the integrator.
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