Recognition Vs Speaker Recognition Essay

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Speaker recognition is a biometric technique that uses an individual’s voice for identification or verification purpose. There are many people who often confuse themselves thinking that voice (speaker) recognition and speech recognition are one and the same but there is a fundamental difference between the two. Speech recognition system recognizes what is being spoken irrespective of the speaker whereas speaker recognition system identifies or verifies the speaker who has made an utterance. There are two major applications of speaker recognition technologies, speaker verification and speaker identification. If the speaker claims to be of a certain identity and the voice is used to verify his/her claim, this is called verification. On the other …show more content…
Except for the speech text (words), the rich dimensions also refer as the gender, attitude, emotion, health situation and identity of a speaker. Such information is very important for an effective communication.
The speaker recognition systems are developed in two phases: training phase and recognition phase. In the training phase, each registered speaker has to provide samples of their speech so that the system can build a reference model for that speaker. In the testing phase, the input speech is matched with stored reference model(s) and a recognition decision is made.
One of the important decisions in any pattern recognition system is the choice of what features can be used and how exactly to represent the signal that is to be classified. Through more than many years of research, many different feature extraction techniques of the speech signal have been suggested and tried like MFCC, LPC etc. PLP is one such technique. Moreover for speaker modelling, different modelling techniques for speaker recognition system have been identified such as Gaussian Mixture Model (GMM) and Hidden Markov Model (HMM), which are prevalent techniques in this

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