I have a project and in this project I need to record natural human voice and detect the emotions which existed in the voice . Is there any software that can do this (preferably on mac) ? And my second question is where should I start if I want to code this kind of programs my self ?
Thanks in advance
For these kind of projects, once you recorded the person's voice, of course it will be saved as an audio file. Then you have to do feature extraction using Matlab Programming to remove the noises from the voice signals.
Besides, you have to train your system in advance. Meaning that you must build a database or use the available databases (perhaps u can find it online). By training the system, the system will learn how to detect the voices and in which category do these voices belong to. Then only once you give the voice as the "testing data" it will be able to detect the emotions.
There are lots of feature extraction and classification methods that u can use. Many articles available too.
Hope that gives u the general idea that how it works.
I just found this one online. It is a short article, but may give u more clear image of the story
http://cs229.stanford.edu/proj2007/ShahHewlett%20-%20Emotion%20Detection%20from%20Speech.pdf
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