Microphone Low-poly 3D model

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Human: A transmitter – colloquially called mic or megaphone – is a device that converts sound into electrical signals using vibrations as pressure waves that cause changes to air pressure. The sound transducer devices are used for various purposes including hearing aids, live concerts, sound recording, radio broadcasting, voice recording on computers, speech recognition and VoIP. Various types of transmitter employ different principles for converting air pressure variations of a sound wave into electrical signals such as the electromagnetic principle in dynamic transmitters, the capacitance principle in condenser microphones or piezoelectric principle used by some other transmitters. In order to connect and send these converted electrical signals to devices such as loudspeakers or headphones they require connecting cables for amplification before being transmitted. A part called capsule that can feel changes due to pressure and vibrates at those same changes of sound, is used as a transmitter component. First, sound waves move the part into action by vibrating its surface which produces varying electrical currents according to variations in frequency of those wave signals sent via cables through a transmitter casing along with connections or ports necessary for input from audio devices including amplifiers for louder signals on speakers outside equipment also sometimes includes an electric circuitry setup for adapting its output towards specific gear they are being paired up with like a radio for transmitting music while live. Wireless transmitters contain small radios used to transmit the signal wirelessly. In earlier days to talk louder and far across groups, people found solutions to amplify voices by building large acoustic horns using objects available like big masks on the stage of public theatres but they had no effectivity on amplifying human voices so some inventions came up to change these scenarios such as Robert Hooke's device for better volume of voices through different materials like wire stretching in 1665 or an earlier idea with metal cups on two sides stretched tightly at one point that could pick the voice up stronger in a certain distance.