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LM324 Based LED VU-Meter - EEWeb
https://www.eeweb.com/lm324-based-led-vu-meter/
The circuit was conventionally designed with eight LED audio level meter made out of two low power quad op-amps which utilizes LM324. Volume Unit – an entity equal to a decibel for expressing the magnitude of a complex audio; it states the level of complex, nonrecurrent, and non-periodic signals such as music and speech
How to make Audio Level VU Meter using LM324 ic - …
https://www.youtube.com/watch?v=42-lvoQqt8Q
How to make Audio Level VU Meter using LM324 icToday i will show you how to make audio level vu meter using lm324 ic, diy electronics lm324 vu meter make at ...
8 LED VU meter circuit using LM324 IC - Electronics Area
https://electronicsarea.com/8-led-vu-meter-made-ic-lm324/
8 LED VU meter circuit using LM324 IC. This 8 LED VU meter circuit can be used to display the variation of an audio signal in a group of 8 LEDs, behaving like a VU meter. We could use an specific integrated circuit used for VU meters, but we decided to use a readily available integrated circuit: The LM324 operational amplifier.
My World My Rules: 10 LED VU Meter using LM3915 and …
https://subjecteee.blogspot.com/2015/02/10-led-vu-meter-using-lm3915-and-lm324.html
10 LED VU Meter using LM3915 and LM324. VU Meters are used in many applications like in discotheques to measure the level of audio signals. This level or magnitude of sound signal is termed as loudness. They are basically used to measure the loudness of sound signals or measure the noise signal. There are two ways to measure sound level of a …
Audio VU Meter - EEWeb
https://www.eeweb.com/audio-vu-meter/
This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in this particular circuit is the LM324. It is a popular IC and should be available from many parts stores. The 1K resistors in the circuit are essential so that the LED’s turn on at different audio levels.
Audio VU Meter - Circuit Diagrams
http://www.circuit-diagrams.net/page/audio-vu-meter
Description: This circuit uses two quad op-amps to form an eight LED audio level meter. The op-amp used in this particular circuit is the LM324. It is a popular IC and should be available from many parts stores. Notes The 1K resistors in the circuit are essential so that the LED's turn on at different audio levels.
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