Provide echo cancellation like other audioconferencing solutions
We find that remote users hear an echo of themselves in all of our conference rooms, which are fairly standard - TV with webcam on top, using the webcam microphone. The sound from the TV gets picked up by the webcam and sent back across the call, causing an echo on the far end. Other products (like GoToMeeting) are smart enough to detect this echo and not send it back across the line. I think personal Skype have this capability as well.
I have worked through the issue with MS support on case number SRX617112793089112ID , if that helps. I was told that SFB does not currently support echo cancellation, but it might in future updates, so I am requesting it here
Andy Pattrick commented
This is a valid request and should not be dismissed by Travis Reed comments. I use a web cam mic and a bluetooth speaker on my laptop. This works fine in Skype Free, GoToMeeting, WebEx but results in a bad echo for other participants when using Skype for Business. S4B needs better echo cancellation like it's competitors.
Travis Reed commented
That's a terrible room design for meetings where audio is present. You need some kind of audio processor to pick up transmitted audio and filter it from receiving audio. This comes standard in Windows, however, the Microphone and Speakers must come from the same source.
In your situation, the Microphone is on a USB webcam which has an internal sound card for processing voice pickup. Your speakers are on your TV so there's no way for your USB webcam's audio processor to know what audio to cancel if any. Any audio that hits that microphone will be sent through as if its supposed to because it is in that design.
The easiest way, with cost in mind, is to redesign your rooms. Use something like an Intel NUC or MacMini and run where you can take audio into that PC and send audio out of that PC so the Echo Cancellation can function or you could also have a more integrated system and invest in an audio DSP from Biamp or Polycom, however, these have a higher cost and generally require a professional to assist in configuring your audio levels.
There's always a point where cheap and fast conference room ideas sound good and look like the right budget but you just won't have a clean echo-free solution until you invest a little more into properly setting up your room. A proper room setup will make it so that a user is unable to create an echo or experience feedback while keeping the interaction with the technology very minimal (automation)