What does car mic mean?
1 Answers
Car mic refers to a microphone, also known as a sound transmitter, which is an energy conversion device that transforms sound signals into electrical signals. The microphone is primarily used for Bluetooth call answering and navigation voice playback functions. The working principle of a microphone is as follows: sound vibrations are transmitted to the diaphragm of the microphone, pushing the internal magnet to generate varying currents, which are then sent to the sound processing circuit for amplification. Microphones can be categorized into FM band, VHF band, and UHF band. FM band microphones have a simple structure and low cost but inferior sound quality; VHF band operates at higher frequencies, experiences less interference, and uses crystal frequency locking for more stable reception performance; UHF band is free from external frequency interference, offering stable performance and superior sound quality.