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Audio Level Indicator using LM3914 - VU Meter
https://circuits-diy.com/audio-level-indicator-using-lm3914-vu-meter/
Sound intensity has its crucial importance in various sound equipment and sound recordings. So, to understand the sound intensity or to, measure the audio level, volume unit (VU) meters are being utilized. So, this tutorial is about making an Audio Level Indicator using LM3914 – VU Meter. This LM3914 is an LED-controlled derive…
Sound level meter circuit using IC LM3914 - Gadgetronicx
https://www.gadgetronicx.com/sound-level-meter-ic-lm3914/
This circuit uses a electret microphone which is powered using a pull up resistor R3 . When there is a sound in the environment Electret microphone picks it up and this signal will go to pin SIG IN pin through Capacitor C2. This Capacitor C2 removes DC components in the signal. Now the IC LM3914 takes over. Looking at the datasheet of LM3914 ...
How to make Audio Level Indicator - VU meter using …
https://circuits-diy.com/how-to-make-audio-level-indicator-vu-meter-using-lm3914-ic/
The heart of the circuit is an LM3914N-1 LED driver IC. Firstly, the analog input is coming from P1 Audio Input (Mic/Smartphone). The AC input from the Audio IN enters the SIGNAL pin of the IC. These signals go through the LM3914 integrated comparator. The LM3914 comparator glows the LEDs according to the strength of the given signal.
LM3914 – Savage///Circuits
https://savagecircuits.com/tag/lm3914/
LM3914. These were the final version of my audio level meters, used on many audio projects, including audio amplifiers and audio controllers. This is the beginning of a newer type of amplifier I started building in 1994.
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