Why is do my bluetooth audio devices echo when connected to my S6?

[AC Question]

Ever since I updated my Galaxy S6 to Andriod 7.0, there has been a constant echo whenever I use bluetooth speakers, earbuds, or connect my phone to my car. I use these devices mostly to listen to music or to listen to videos online so the echo is fairly noticeable. It sounds as if the audio is being played inside of a tunnel. Is there any way to fix this?

 

[Tim1954]

Have a look in music settings to make sure the concert hall effect is not on..

 

[Wilycricket]

I have exactly the same problem, all other devices of various brands work perfectly with the same speakers. It used to work perfectly.

Concert hall setting is off.

 

[JuviskA]

I have same problem. Restarting phone helps for a couple of days but then the echo comes back.

 

[szkola windsor]

I have the same issue with a connection to my car audio via Bluetooth, just sounds like a concert hall echo... nothing wrong with my audio settings. The problem was intermittent but now it's all the time. Can't work it out at all. Several restarts... disconnects/reconnects but no improvement...at a loss!?