What is echo cancellation?
Echo cancellation is the removal of acoustic echo (the sound of a speaker that gets picked up again by a microphone) from captured audio.
What is an example of echo cancellation?
On a speakerphone call, without echo cancellation the remote participant would hear their own voice bounced back a fraction of a second later. Echo cancellation removes this by subtracting the known played signal from the microphone input.
How does echo cancellation work?
Acoustic Echo Cancellation (AEC) uses adaptive filtering to model the path from speaker to microphone and subtract the estimated echo from the captured signal. Modern systems pair classical AEC with deep learning to handle non-linear distortions and reverberant rooms that traditional methods miss.
How does ai-coustics use echo cancellation?
Echo handling is part of the real-time voice AI toolkit our models complement. Our Quail family suppresses residual echo and reverb that survive traditional AEC — especially important for voice agents running on speakerphones, car audio, and hands-free setups — ensuring ASR isn't confused by lingering artifacts.
