# How to do speech recognition on a single word

I would provide a sound signal of about 2-3 seconds to my neural network. I have trained my network with a single word, like if I speak "Hello" the network may tell if "Hello" is spoken or not, but some other word like "World" is spoken, it will say "Hello" is not spoken. I just want classification of sound if its a specific command or word. What is the best way to do this, I am not a that much advanced in DNN, I only know about NN and CNN, I want to know if there is some research paper or tutorial, or need some explanation about the work.

If you have fixed length speech data you can detect the content using only CNN. You can see that problem as a binary classification (1 if the spoken word is correct, 0 otherwise).