Voice Recognition Research Paper
Introduction
What is Voice actuation or recognition?
Voice or speech recognition is the ability of a machine or program to receive signals in the form of voice and interpret and carry out commands accordingly.
For use in computers, analog signals are first to be converted into digital signals. This process of conversion requires analog signal to be converted in to digital signal. For a computer to interpret a signal, it must possess a set of vocabulary or words to compare with. The speech patterns are first to be stored on the hard drive and loaded into memory when the program is run. A comparator checks these stored patterns of signal against the output of the A/D converter.
All voice-recognition systems or programs make errors. Noise in
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Voice recognition is normally used to operate a device i.e. computer or user made device, perform commands, and operate without keyboard, mouse, or by pressing any buttons. Today, this is implemented on a computer with built-in or separately created automatic speech recognition (ASR) software. Many speech recognition programs require the user to train the program to recognize their voice so that the signals provided in form of human voice can stored more accurately. For example, you could ask like "open chrome" and the computer would open Google …show more content…
Types of voice recognition systems
Automatic speech recognition (ASR) is just one example of voice recognition, below are other related examples of voice recognition systems.
• Speaker dependent system - systems are trained by the individual who will be using the system. The drawback of approaching this type of system is that the system only responds accurately only to the individual who has trained the system. This is the most common approach used in software for personal computers.
• Speaker independent system: - This system is trained to respond to a word regardless of who speaks. Therefore the system must take action to a large variety of voice/speech patterns. Industrial requirements more often need speaker independent voice systems, such as the AT&T system used in the telephone systems.
• Discrete speech recognition - The user must create a pause between each phrase so that the speech recognition can identify each separately spoken word.
• Continuous speech recognition - The voice recognition can understand at normal rate of speaking, no such pauses are
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