Description: A voice user interface (VUI) is a system that allows users to interact with devices and applications through voice commands. This technology transforms the way people communicate with machines, eliminating the need for traditional graphical interfaces like keyboards and touch screens. VUIs are particularly useful in situations where users’ hands are occupied or when quick and efficient interaction is required. The main features of a voice user interface include speech recognition, voice synthesis, and the ability to understand natural language. These interfaces can be programmed using no-code or low-code development platforms, allowing developers and users without technical experience to create voice applications more accessibly. The relevance of VUIs has grown exponentially with the rise of smart devices and virtual assistants, which have integrated this technology into everyday life, facilitating tasks like information searching, controlling home devices, and managing schedules, all through simple voice commands.
History: The history of voice user interfaces dates back to the 1960s when the first speech recognition systems were developed. One of the most significant milestones was the ‘Harpy’ program, created in 1976 by Carnegie Mellon University, which could recognize up to 1,000 words. However, it wasn’t until the 2000s that speech recognition technology began to mature, thanks to advances in algorithms and data processing. In 2011, Apple launched Siri, its voice assistant, marking a turning point in the popularization of VUIs. Since then, companies like Google and Amazon have developed their own assistants, further driving the adoption of this technology.
Uses: Voice user interfaces are used in a variety of applications, including virtual assistants, navigation systems in cars, smart home devices, and mobile applications. They allow users to perform tasks such as sending messages, making calls, playing music, controlling home devices, and searching for information online, all through voice commands. Additionally, they are particularly useful in environments where manual interaction is difficult or dangerous, such as driving or medical situations.
Examples: Examples of voice user interfaces include virtual assistants, which allow users to control home devices and play music through voice commands; voice-activated assistants, which help users manage their schedules and search for information; and navigation systems that enable users to interact with the app while driving.
