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Automatic speech recognition (ASR) is the use of computer hardware and software-based techniques to identify and process human voice. It is used to identify the words a person has spoken or to authenticate the identity of the person speaking into the system.
Automatic speech recognition is also known as automatic voice recognition (AVR), voice-to-text or simply speech recognition.
Automatic speech recognition is primarily used to convert spoken words into computer text. Additionally, automatic speech recognition is used for authenticating users via their voice (biometric authentication) and performing an action based on the instructions defined by the human. Typically, automatic speech recognition requires preconfigured or saved voices of the primary user(s). The human needs to train the automatic speech recognition system by storing speech patterns and vocabulary of their into the system.