Automatic detection of bark

Hi guys

I have to do automatic detection of a dog bark among other sounds. What is the guideline of doing so ? I finished my code where i compare a sound to a train sound and based on its distace(euklidean and so on) the program decides wheater it is a dog bark or not based on a set treshold.

I

But now i need make it automatic so I have a dog bark which is 0.5s long and i have to compare it to a 15sec audio segemet which consists of many different sounds.

Program is camparing these 2 segments and when there is enough similarities between those two it stops and says that it found a dogs bark.

Any suggestion please