I'm developing an Iphone app. This application is used for storing user's personal data. For the security purpose we are looking to provide a new feature in our application, user can access the data after logged-in to the application. The issue is we need to provide "voice Authentication". Means, user can save a word like "hi" as his password by recording it. If he needs to log-in to our application he should speak the word "hi". And the two sounds are compared and if they match then user will be authenticated and log-in will be allowed. Is such a application is possible ? Is it possible to compare the voices in Iphone?
I researched on these links, but didn't get an Idea. Please help me. http://developer.apple.com/library/mac/#documentation/AVFoundation/Reference/AVAudioPlayerClassReference/Reference/Reference.html
https://developer.apple.com/library/mac/#documentation/AVFoundation/Reference/AVAudioRecorder_ClassReference/Reference/Reference.html
https://developer.apple.com/library/mac/#documentation/musicaudio/reference/CoreAudioDataTypesRef/Reference/reference.html
