first of all, what is your sound source I want to hit? Is it a DVD player or a CD player or something? If there is sound without turning on the audio speaker, it's the first time I've heard of it. I think the TV tower next to your house is still related. The solution is to replace the audio wire with a wire with a cover function, which is sold in the home appliance market. Because the electromagnetic waves from the TV tower will interfere with your audio signal.