Last time I talked about some applications about speaker recognition. In this blog, I will mainly focus on one of them, which is the voiceprint lock.
In my point of view, the most difficult part in speaker recognition is when you use it in noise environment. The noise from environment will be interference of the real useful signal. They are not many voiceprint lock software in China till now. But as far as I know, it is widely used in countries like Japan and USA.
The mostly used Chinese voiceprint software are LingXivoice and SIVI. Unfortunately, they only works on android, and maybe they are now considering going to iOS market. Those software are easy to use, similar to set a password for your phone. They are text-dependent, which can give more accurate result. Text-independent recognition would be an ideal case, but what you are saying also depends on your mood and your health condition, for instance, catch a cold may change your voice a bit. Besides, for a text-independent recognition, it may also detect the voice of the owner’s recordings, which is not safe for the product.
When you set a voiceprint lock, in most cases it first give you different texts to record, each text will be recorded three times. The time when you want to unlock it, it gives you a random text which is already be stored when your set the voiceprint lock, then you can unlock your phone if verified.
That is the introduction to voiceprint lock application. If you have an android device, you can experience it by yourself now!