I have a speakerphone-ish application using STM32F405. Accoustic echo is a problem (mic picks up what the speaker barfs out). Prelim googling shows:
- Cube has add-on for speex AEC. But xiph (the guys who made the now-obsolete speex) themselves say google webRTC AEC is better.
- google webRTC.
So... anyone done AEC? What'd you use?