How to Make a simple LED Audio Spectrum Analyzer with Lm358

How to Make a simple LED Audio Spectrum Analyser with Lm358 

Description:-

This LED audio spectrum Analyser creates beautiful light patterns according to the intensity of the music. No microcontroller is used in this circuit.lm 358,cd 4017 or 555 timer IC is used in this circuit.

Circuit Diagram:-

LED Audio Spectrum Analyser

Sample pictures:-

VU meter circuit diagram:-