Here are some excepts of my town's noise related ordinances. As far as I can tell, I am in the clear for forging as long as it is not between 10:00pm and 7:00am. I am also allow to whistle, yell and shout. Not sure what is classified as hooting but I might try it. So I can whistle while I work and yell and shout when I make mistakes. Pretty comical.
It shall be unlawful for any person to use any hammer or power-operated tool for repair or construction purposes between the hours of 10:00 p.m. and 7:00 a.m. within six hundred (600) feet of any building used for residential or hospital purposes if such noise is audible from any adjacent property used for residential or hospital purposes. Repairs to public service utilities shall be exempted from this section.
It shall be unlawful to engage in yelling, shouting, hooting, whistling or singing between the hours of 11:00 p.m. and 7:00 a.m. within six hundred (600) feet of any building used for residential or hospital purposes or indoors if such noise is audible from any adjacent property used for residential or hospital purposes.