Voice user interface (VUI) provides a ability to interact with a system through voice or speech commands. Using Voice user interface machines can communicate with humans in natural language.
There are few popular Virtual assistants, such as Siri, Google Assistant, and Alexa are available in the market. These are having the ability to connect with smart devices and operate them based on voice commands.
The Voice user interface provides a hands-free, eyes-free way in which user can interact with a machine without full attention. Ultimately, this provides ability to operate machines without looking and touching. for example. a Chef can simply ask a microwave oven to stop heating or we can ask for mobile to play our favorite song.
While designing voice-based user actions, We should be specific to provide handle all possible interactions, Humans tend to associate a voice commands with their interpersonal communication. So this increases complexity for the designers to handle such all combinations. For succeeding with a voice user interface, It requires an excellent ability to understand the language but also we need to train the user with different types of voice commands to interact with machines.