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Sound Level Meter Circuit - ElectroSchematics.com
https://www.electroschematics.com/sound-level-meter-circuit/
709 audio indicators Share this: This sound level meter circuit can be used to control the intensity of a sound recording or in a disco. It has 5 …
Audio Decibel Level Meter – Electronic Circuit Diagram
https://freecircuitdiagram.com/1817-audio-decibel-level-meter/
Audio Decibel Level Meter. March 31, 2010 Rend. This is a circuit of Audio Decibel Level Meter. This circuit uses the SA604 which not only designed as an RF device but also the Received Signal Strength Indicator (RSSI). In a cellular radio, the radio’s microcomputer uses that function to monitor the received signal strength continuously. ...
Decibel Meter Electronic Circuits
http://www.discovercircuits.com/D/decibel.htm
Audio VU meter 9 LEDs - 5 LED VU Meter kit is based on LB1409 IC from SANYO, which will indicates the volume level of the audio signal it senses __ Contact: IQ Technologies. Decibel Meter - The circuit below responds to sound pressure levels from about 60 to 70 dB. The sound is picked up by an 8 ohm speaker, amplified by a transistor stage and one LM324 op …
A versatile Decibel Meter Circuit - Engineering Projects
https://bestengineeringprojects.com/a-versatile-decibel-meter-audio-level-indicator-spectrum-analyser/
The schematic diagram of versatile decibel meter circuit is shown in figure 1 is based on op-amp IC LM3914 for bar graph generating. LM3914 has 11 op-amps, out of which one is used as buffering and rest are as comparators.
Sound Decibel Meter Circuit - Making Easy Circuits
https://makingcircuits.com/blog/sound-decibel-meter-circuit/
The sound decibel meter circuit shown underneath reacts to audio air pressure concentrations from approximately 60 to 70 dB. The sound is sensed by an eight ohm loudspeaker, intensified by a transistor stage together with a LM324 op-amp stage.
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