The equalizer has bass on the right and treble on the left. Touch the yellow button on the far right of the equalizer with your finger and push it up to the top. When it is 100 khz, it will be pushed up by half, and when it is 320KZ, it will be pushed up by one third, and the heavy bass will come out.
Introduction to equalizer:
1. An electronic device that can respectively adjust the amplification of electrical signals with various frequency components. By adjusting the electrical signals of various frequencies, we can compensate the defects of speakers and sound fields, compensate and modify various sound sources and other special functions. Generally, the equalizer on the mixer can only adjust the high frequency, intermediate frequency and low frequency electrical signals respectively.
2. Equalizers are mainly divided into frequency domain equalizer and time domain equalizer.
3. Frequency domain equalizer uses the frequency characteristics of adjustable filter to compensate the amplitude-frequency characteristics and group delay characteristics of the actual channel, so that the total frequency characteristics of the whole system including equalizer can meet the transmission conditions without intersymbol interference.
4. The time domain equalizer directly considers the time response, so that the impulse response of the whole transmission system including the equalizer meets the condition of no inter-symbol interference. Frequency domain equalization meets the requirements of Nyquist shaping theorem, and the condition of no intersymbol interference is relatively loose only at the decision point. Therefore, time domain equalizer is widely used in digital communication.