How to match two voice files and return whether they are the same words?

Question

I record my voice with words "Hello World" and save it as file-1.

Then record the voice of another guy with "Hello World" and save it as file-2.

Is there any way to match these two files ?

I mean ,if the two files have the same words recorded, they should be equal.

Please tell me some open source project or papers to read.

Answer 1

Try to play around Dynamic Time Warping algorithm

Here is example of using DTW algorithm in appliance to speech recognition http://www.cnel.ufl.edu/~kkale/6825Project.html