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Audio - VU meters & spectrum analyzers


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Sound Level Indicator circuit diagram


author: Audioguru Dec '05
visits: 32052
Sound Level Meter circuit diagram
This nifty sound level meter is a perfect one chip replacement for the standard analog meters. It is completely solid state and will never wear out. The whole circuit is based on the LM3915 audio level IC and uses only a few external components.

author:
visits: 27735
3 Channel Spectrum Analyzer circuit diagram
This 3 channel 15 LED spectrum analyzer is the perfect addition to any audio amp project. It produces fantastic displays on three LED bars that can be individually adjusted for any particular frequency range.

author:
visits: 20236
Three-Level Audio Power Indicator circuit diagram
This circuit indicates audio output power via three LEDs. Nice addon to your amplifier.

author: RED Free Circuit Designs
visits: 7319
page: 1


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