Fellas just as an aside here, always wear ear protection. Over the years from exposure to noises such as the anvil ringing can cause tinnitus, and I can assure you that you do not want this.
Not from forging but from other exposures over the years it finally caught up with me and I have a constant sound some what like a pork chop frying in grease and the beginnins of a burnt bearing going in my head 24/7. It really takes some time to come to grips with it and I would not wish it on anyone. It is also accompanied by hyperacusis in my case, some sounds sound considerably louder to me and change tone. I have to wear ear plugs in the shower and also at church . Hearing loss would be mild to this.
Take my advise and protect your hearing, especially you fellas with the power hammers and ringing anvils.
Jerry Fisher