mpAEC
Cancels echo produced by the device's own speaker
mpAEC is a multi-channel acoustic echo cancellation technology that reduces sound played by the product — TV audio, car audio, robot responses, kiosk prompts — from re-entering the microphone.
It is designed for environments where the user's voice and the product's output are present at the same time, and its output can feed beamforming or your existing ASR.
Official material presents stable processing with near-end speech present, no double-talk detection required, no far-end signal decorrelation required, and fast convergence as mpAEC's characteristics.
Key problems
- Speaker output re-entering the microphone
- User and product speaking at the same time
- Changing echo paths
- Real-time processing
Typical applications
- Vehicles
- Robots
- Kiosks
- Smart home
- Meeting systems
Speaker Output + User Voice → Multi-Channel Mic → mpAEC → Echo-Reduced Speech



