Bytes that give away a dog's bark

In today's The Daily Telegraph was an article loosely relevent to my previous 'Barking Mad' posting:

Scientists have developed a computer program that "translates" dog barks.

The program analysed more than 6,000 barks from 14 Hungarian sheepdogs in six different situations: 'stranger, fight, walk, alone, ball and play'.

Researchers, who describe their findings in the journal Animal Cognition, hope the advance will lead to a computer that could be operated by a dog's bark.

The team from Eotvos Lorand University in Hungry, plans to compare the barks of different breeds to find out what they have in common.

Barking mad

The evolution of language fascinates me. Not just derivations of the same language just a few miles apart geographically, but across countries (eg. 60% of English is said to derive from French). Now here is a trivial question (or is it?) A dog barks in Sweden. Another dog barks in Germany. If they were to meet would they understand each others bark?