Sharp 4K Display Audio Mode breaking GS500 Echol Cancellation

[hootsb]

Using a GS500 with HDMI connection to Sharp Aquos 4K display.  Noticing an echo being created by my GS 500 for anyone it is connected to (Teams or Zoom, does not matter).  Is not the Poly ceiling mics or any wiring.  All tested.  What we found is that some of the Display's AV modes were creating the issue.  Not clear on why this is happening.  In some cases it is introducing 1 to 3 second delay.     

This is a new issue since most of my rooms have external speaker systems that use the 3.5mm audio jack.  Newer rooms with bars will not need them.  Investigating this to understand what we are dealing with.  Looking for reference material on what communication is failing in the different modes.  Is this EDID failure?  Will i see same issue in new Poly X52/72 and G62 that are obvious replacements when I upgrade room.  

The PC and User modes work without issue.  the Dynamic, Dynamic Fixed and Movie mode initially fail, but then start working as the caller speaks.  Standard and Game fail.

[M_Salman]

Hi @hootsb , Welcome to Poly HP Support Community.  
 

Due to limited support, I would request you contact our HP Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link.

https://support.hp.com/us-en/poly

I hope this helps! Keep me posted for further assistance. If you find the information provided useful or solves your problems, help other users find the solution more easily by giving Kudos/Thumbs Up and marking my post as an Accepted Solution.

Regards,

Salman