MOBILE COMMUNICATION TERMINAL HAVING A MICROPHONE VOLUME CONTROL FUNCTION, ESPECIALLY WITH REGARDS TO AUTOMATICALLY CONTROLLING THE VOLUME OF A MICROPHONE ACCORDING TO EXTERNAL NOISE

摘要

PURPOSE: A mobile communication terminal having a microphone volume control function is provided to automatically control the volume of a microphone according to an external noise or peripheral environment where a sender is located, and to compensate for the volume, thereby sending an exact voice to a receiver. CONSTITUTION: A microphone(101) converts a user's voice signal into an electric signal. An amplifier(102) amplifies the voice signal according to a set gain value, and outputs the amplified signal. An analog/digital converter(104) converts the amplified analog voice signal into a digital signal. A CODEC(105) compresses the outputted digital signal in predetermined compressive format. A communication unit(106) sends the compressed voice signal to other party's terminal. A controller(110) controls each unit.