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Slightly related, does anyone know of any speech recognition library that also analysises the intonation / emotion in speech?

For example that has the ability to recognise anger / happy / questioning to relative accuracy?

NO! BUT THAT'S A GOOD QUESTION!

But seriously, I've seen emotion recognition, and speech recognition, but haven't come across anything that provides both in one package.

Do you have link to good emotion recognition if you have used one?

Perhaps, could use wrapper library to combine functionality. It's a very interesting area.

I work on the Watson team, so I'm probably biased, but I think our AlchemyLanguage Emotion Analysis is pretty good: http://www.ibm.com/smarterplanet/us/en/ibmwatson/developercl...

I have used none, but at the time I researched it, a lot of people were talking positively about