This is due to excessive engagement of non-linear processing(NLP) and is most likely being caused by gain structure issues or improper AEC referencing.
The VC audio need to be set as line input and not as mic input. Setting the VC audio to be mic input makes AEC to be applied to VC input audio and makes the audio fluctuate.
With the boundary transmitters you will want to give it a bit of pregain. This can be done by using the WS800 and Dialog 20 remote software. It is under the TX Audio Gain setting. We recommend +15 to +20dB of gain. You will need to resync the mic on ...
Yes, the Huddle can be used for USB 2.0 connectivity. Audio will not be affected and will be same as USB 3.0 connectivity. Video will be affected in comparison to USB 3.0 and will be reduced to 720p in USB 2.0