The electronic noises for the character Dog were made for the 2004 first-person shooter, Half-Life 2, and its episodes. His sounds have since been used on some videos, using Source Filmmaker. Links: https://www.youtube.com/watch?v=ecn9-xaC1tU https://soundeffects.fandom.com/wiki/HALF_LIFE_-_DOG_NOISES#Audio_Samples