That clip is from Dexter's Laboratory, an old show from Cartoon Network about a young boy genius with a secret,  hidden lab and somehow his parents never found out even though I'm sure it was costing them thousands in the electric bill each month. Dexter decided to make a device that would allow him to understand what his dog was saying. It was cool for about 5 minutes but then quickly grew irritating.

A new device is in development that will allow you to hear your dog speak. The device, developed by The Nordic Society for Invention and Discovery, is testing a gadget that would be attached to the dog's head and would read thier brainwaves and then translated into human speech. 

No More Woof project demonstration:

Read the full story from Channel 6 News.