machine learning

Develop a voice recognition system for a smart home. The system should be trained to recognize the voices of four specific individuals,When any of these individuals give a voice command,for eg say turn on the light, lock the doors, the system should respond by turning on a light bulb or locking,. If any other person gives a voice command, the system should not respond.It should display who is speaking and voice also needed to be displayed,speech recognition should be more than 90%, no harware is neede just software part