What the nose is for
The Beagle comes from England, where small hounds hunted rabbits and hares by scent. Hunters followed on foot, so a small, steady hound with a great nose and a strong voice suited them. Beagles were kept in packs and bred for nose and voice. Today they still work as detection dogs, including at US airports.
That history helps explain what you live with. Many Beagles will follow a track without hearing you. They can be loud when excited. They are often food-motivated too, and love to scavenge. Individual dogs vary, but the nose usually runs the show.
Read our Beagle guide for more on what the breed was developed to do. The key idea is simple: do not fight the nose. Work with it.