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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…
How to make Audio Level Indicator - VU meter using …
https://circuits-diy.com/how-to-make-audio-level-indicator-vu-meter-using-lm3914-ic/
LM3914 is an analog controlled LED driver IC, meaning it can control (turn on or off) 10 LEDs by an analog input voltage. This IC eliminates the need for programming a microcontroller and also reduces the hardware required to control 10 LEDs. For LM3914, the input voltage can vary from 3V to 18V.
Sound level meter circuit using IC LM3914 - Gadgetronicx
https://www.gadgetronicx.com/sound-level-meter-ic-lm3914/
Working of Sound level meter: 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.
Audio Level Indicator using LM3914 | Hackaday.io
https://hackaday.io/project/181486-audio-level-indicator-using-lm3914
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 derived IC that basically operates in two modes. A dot mode and a bar graph mode.
Taidacent DC3-12V LM3914 Audio Level Meter Indicator …
https://www.amazon.com/Taidacent-Indicator-Sensitivity-Adjustable-Spectrum/dp/B08ZCJ6LXP
This item: Taidacent DC3-12V LM3914 Audio Level Meter Indicator Kit Sensitivity Adjustable LED Sound Level Indicator Circuit Voice Control Level Light DIY Audio Spectrum Analyzer Kit. $9.90. In Stock. Ships from and sold by Shenzhen Taida Century Technology Co.,Ltd.. $18.00 shipping.
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