Voice Identifier - Biometric Computer Security Systems
Besides fingerprint, another popular security technology is voice identifier. According to VSS organization (2007), voice security technology uses a person’s voiceprint to uniquely recognize individuals. Users can input their voice through the speaker verification devices, and then analysis programs will compare the voice with the one that store at the first time. Therefore, this process constructs an effective protection for computer information.
However, by the comparison with fingerprint security system, voice identifier is obviously less popular than fingerprint because of some shortages. Generally, voice security technology also contains a majority of drawbacks from fingerprint technology. In fact, voices are not unique for human. A lot of people are also speaking with similar voice. In addition, voice is one of the characters that change more frequently in human’s life (Biometric Security Technology 2009). For example, when people have laryngitis, their voices are different to the voices at normal time, and human’s voices will also change with growth. For this reason, voice security technology still can not be widely promoted and popularized into personal computer.