Four-way karaoke lighting renderer circuit

Busy OK lighting rendering controller with four outputs . In the middle, B is the electret condenser microphone
. After E picks up the sound wave signal, it outputs the electrical signal of H cup, which is amplified by VT1 and passes through Rl, I and C. Send it
to the ⑤ pin of 034 on the integrated block H1. After internal rectification and amplification, it controls the chip's internal voltage-controlled oscillator VCtJ, so that the oscillation
frequency changes with the intensity of the audio signal. Therefore, changing the rate of Ql-Q4 output pulse conversion makes the four
groups of colored lights F, I-I "circulate and light up at a rate that also changes with the intensity of the environmental sound waves. The louder the song, the faster the
cycle rate, and vice versa. Slow. Adjusting RI11 can change the sound control sensitivity of the circuit and the lantern cycle rate.
RP2, R and (, t are the external oscillation resistors and capacitors of the HL3034 internal voltage controlled oscillator v('(), so adjusting
RI12 can also change the color. Lamp El-L: cycle rate of 4. The usage of this circuit is the same as the above example.