LED Sound to Light Circuit

Another dull wet UK afternoon, another reason to play around with a fun circuit. This time it's a LED sound to light circuit. I rescued a small electret microphone from a dead telephone handset and this was the ideal circuit to give it a new lease of life. The original circuit came from the Tech help youtube channel (link in video). The sound picked up by the microphone causes a row of LEDs connected in parallel to shine brighter according to the loudness of the audio signal. In this video I'll show how I built this circuit on breadboard.
Music track : Bandana Beat by CuSi Sound available on Bandcamp and SoundCloud
cusisound.band...
/ bandanna-beat