EQ sound quality tuning device and control method

摘要

The present invention relates to an EV sound quality tuning apparatus and a control method thereof, and in particular, a main power supply unit 100 for supplying power to each part of the audio; A 5V power supply unit 200 for applying 5V backup power; A radio unit 300 for outputting an audio signal, a cassette unit 400 and a CD unit 500; A sound quality tuning mode selection switch 600 outputting a sound quality tuning mode signal when the user turns on to select a sound quality tuning mode; A key matrix unit 700 for outputting a sound quality level signal when the sound quality level is set through a user pressing operation; A microcomputer 800 for performing a sound quality tuning mode operation, inputting a sound quality level signal to output a sound quality level control signal, and outputting a display control signal; An LCD display unit 900 for displaying an adjustment level of sound quality; An electronic volume unit 1000 which outputs after adjusting the sound quality of the audio signal; An amplifier 1100 for inputting and amplifying the audio signal whose sound quality is adjusted; And a speaker 1200 for inputting the amplified audio signal and outputting the audible voice to the user. The present invention allows the user to directly view key quality levels displayed on the LCD display. Since the sound quality can be adjusted through the negative up / down buttons, the sound quality can be easily adjusted, and the sound quality can be accurately adjusted according to the internal characteristics of the vehicle.