Coyotes or Raccoons?

The first night that Clara and I were in the Adirondacks we heard what sounded like coyotes- very loud and uncomfortably close to our shelter- probably 400 meters away or so. The yipping and yowling sounded somewhat distressed, as well, which leads me to believe that the sound we heard could have possibly been raccoons mating. Apparently, raccoons make these terrible noises when they mate, so it could have been that. The only thing that makes me doubt it is that it sounded like more than just two voices- although there could have been more than one pair mating.