Voice search is an application area of voice control. Voice search refers to searches in texts and on web pages. It is supported by voice-based web search engines and voice-controlled apps
. Voice search can be conversational. In this conversational search, the searcher asks a formulated question. The search algorithm
recognizes the logical connections and answers only questions that are in immediate context. Voice search depends on speech recognition and is supported by mass data such as Big Data, by cloud techniques and machine learning.