I just thought of something. The video i'm writing of is one i took with razr. I should try a website video to see if there is sound. It may be only the ones i take. Then it's still a problem but narrower scope. I' ll be back.
I found my answer. I had put an HDMI extension cable with female-female connector between my razr phone HDMI cable and the TV's HDMI. I tried using only the phone cable to TV and I got sound with my video. Hope this helps someone else.
PS. That same HDMI extension and connector work fine with my laptop. I always travel with it for my laptop to watch Netflix at hotels.