I'm working with a factory on a speakerphone type of product but am getting feedback. We are using full-duplex.
This is what we are seeing/hearing:
- User A talks into unit A
- Unit B's speaker plays User A's voice...HOWEVER Unit B's mic picks up the audio and sends User A's voice BACK to unit A!
- Unit A starts to hear the feedback!
- Unit B starts to get it too!
How do speakerphones do it? Do they somehow turn off the speaker (for a really short amount of time) when they detect that the mic is being used? What happens if the speaker phones are right next to each other?