what is the voice and brain behind the echo device is called
Alexa
title: Echo text: Echo In audio signal processing and acoustics, echo is a reflection of sound that arrives at the listener with a delay after the direct sound. The delay is proportional to the distance of the reflecting surface from the source and the listener. Typical examples are the echo produced by the bottom of a well, by a building, or by the walls of an enclosed room and an empty room. A true echo is a single reflection of the sound source. The word "echo" derives from the Greek ἠχώ ("ēchō"), itself from ἦχος ("ēchos"), "sound". Echo in the folk story of title: Auditory system text: attenuated when they hit the pinna, and these changes provide additional information that will help the brain determine the sound direction. The sound waves enter the auditory canal, a deceptively simple tube. The ear canal amplifies sounds that are between 3 and 12 kHz. The tympanic membrane, at the far end of the ear canal marks the beginning of the middle ear. Sound waves travel through the ear canal and hit the tympanic membrane, or eardrum. This wave information travels across the air-filled middle ear cavity via a series of delicate bones: the malleus (hammer), incus (anvil) and stapes (stirrup). title: Echo chamber text: Echo chamber An echo chamber is a hollow enclosure used to produce reverberation, usually for recording purposes. For example, the producers of a television or radio program might wish to produce the aural illusion that a conversation is taking place in a large room or a cave; these effects can be accomplished by playing the recording of the conversation inside an echo chamber, with an accompanying microphone to catch the reverberation. Nowadays effects units are more widely used to create such effects, but echo chambers are still used today, such as the famous echo chambers at Capitol Studios. In music, title: Echoborg text: carrying out mundane social tasks. Echoborg An echoborg is a person whose words and actions are determined, in whole or in part, by an artificial intelligence (AI). The term "echoborg" was coined by social psychologists Kevin Corti and Alex Gillespie, whose research at the London School of Economics explored unscripted face-to-face social encounters between research participants and confederates whose words were covertly supplied by rudimentary AIs known as “chat bots" and vocalized via speech shadowing. The idea is derivative of the cyranoid concept that originated with Stanley Milgram. The “echoborg method” allows one to investigate how people behave and make title: Echoborg text: Echoborg An echoborg is a person whose words and actions are determined, in whole or in part, by an artificial intelligence (AI). The term "echoborg" was coined by social psychologists Kevin Corti and Alex Gillespie, whose research at the London School of Economics explored unscripted face-to-face social encounters between research participants and confederates whose words were covertly supplied by rudimentary AIs known as “chat bots" and vocalized via speech shadowing. The idea is derivative of the cyranoid concept that originated with Stanley Milgram. The “echoborg method” allows one to investigate how people behave and make attributions toward an AI (or