5.7 Speech Recognition and Voice Recognition

5.7 Speech Recognition and Voice Recognition

Speech recognition and voice recognition are two different technologies though they are closely related.

Speech Recognition

Speech recognition is a form of artificial intelligence. It is a software that converts human speech into text form or commands that devices can understand and respond to. It provides hands- free control of various devices and equipment. It provides an easy way to operate devices and some hands- free equipment is very helpful for disabled persons.

The software used for speech recognition is quite complex as it involves signal processing, machine learning and natural language processing. The output accuracy of speech recognition software may depend on the quality of original recording and the complexity of the language. After the conversion of spoken words into text, the user can further process the text to correct the mistakes by running it through spelling and grammar check.

Voice Recognition

Voice recognition software converts voice into digital data based on the user's unique voice characteristics. Voice recognition is a biometric system. It is used to verify a person's identity based on unique features of his voice such as tone, pitch, etc.

Both speech and voice recognition technologies are used for interaction between humans and machines. These technologies are used in various fields to automate various tasks, create convenience, save people's time and improve productivity.

The following are the applications of speech recognition.

5.7.1 Speech to Text Typing Applications (Dictation Software)

There are a variety of speech to text typing software which is also known as dictation software. Dictation software was used in the early days but they had little accuracy. Now, dictation apps are Al- based and give better results but still cannot provide $100\%$ results. Dictation software is very helpful for people with disabilities as they can use it to type more easily.

The following are some popular dictation software.

Apple Dictation: It is a dictation software on Apple devices. Windows 11 Speech Recognition: It is a dictation software for Windows. Google Docs: It is a voice typing software for dictating Google Docs. Gboard: It is a dictation app for mobile phones.

5.7.2 Calls Centers

Speech recognition systems are used in calls centers to automate customer interactions. They are used to respond to customers' requests and improve productivity.

5.7.3 Healthcare

Automatic speech recognition systems are used in healthcare for efficiency and accuracy. Doctors use it to convert speech in to text for medical reports and updating patients' electronic health records.

5.7.4 AI Assistants

AI Assistants such as Siri, Cortana and Alexa are commonly used to help us in carrying out various tasks at home and at work. For example, AI Assistants can help us to turn lights on in our home, search for something on the Internet, give directions while driving and adjust thermostat. Thermostat is a device connected to central heating/cooling systems in homes and offices to control the temperature.