Help im stomped

Hi,
Attached file didn’t work for me, best bet is upload video file to YouTube & posting thumbnail link to desired page on Strangnet.
Questions people may want answers to
A little info. Does sound come & go as you’re driving, under acceleration. on & off the gas pedal?
Happens both warm and cold, motor and outside temperature
Any new parts added recently,springs, exhaust. Tires. Rims. Etc?
Did this just occur one day. or start quietly & become louded with time ?
Any specific speeds this goes away., or disappears? Any gear outs the worst in
Best
-John