AEC is provided by Alango: http://www.alango.com
Bundled into librespeaker: http://respeaker.io/librespeaker_doc
Works best with volume level ~70%.
Doesn't really like spikes produced by strong basses.
For the best experience it's better to reduce volume after wake word detection.
Implementation: https://github.com/sskorol/respeaker-...
On this page of the site you can watch the video online AEC algorithm in action with a duration of hours minute second in good quality, which was uploaded by the user Serhii Korol 27 March 2021, share the link with friends and acquaintances, this video has already been watched 174 times on youtube and it was liked by 6 viewers. Enjoy your viewing!