Speech recognition technology, which is able to recognize
human speech and change to text, or to perform a
command, has emerged as the ’Next Big Thing’ of the IT
industry. Speech recognition is technology that uses desired
equipment and the service which can be controlled through
voice without using items such as a mouse or keyboard.
It also appeared as part of ongoing research in progress
in 1950s, but was not popularized until the mid-2000s,
with a low voice recognition. Until now, related speech
recognition technologies, which have been used limitedly
for special-purposes, have been rapidly evolving because of
the proliferation of portable computing terminals such as
smartphones interconnected with the expansion of the cloud
infrastructure