The sound of farts in dogs may be caused by improper diet, indigestion, eating too much soy products, parasites in the body, etc. Generally, it will not affect the health of the dog. You only need to help the dog adjust its diet. That’s it. The food should be light and easy to digest and absorb. You can also feed the dog some probiotics to help regulate the dog's gastrointestinal tract, promote digestion, and deworm the dog regularly.