Led Audio Vu Meter Rod Elliott

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LED Audio VU Meter - Armory

http://www.armory.com/~rstevew/Public/BarGraphCcts/p60-f1.htm

LED Audio VU Meter Rod Elliott (ESP) Introduction It is quite true that there are many variations of this circuit already on the WWW, but for the sake of completeness (and because I will be producing PCBs for this version) here is yet another. The LED meter is simpler and smaller than it's analogue counterpart,

LED Audio VU Meter

https://www.sound-au.com/project60.htm

The LED meter is simpler and smaller than its analogue counterpart, and is very common in audio equipment. This version is based on a National Semiconductor IC, and uses the logarithmic version. Each LED operates with a 3dB difference from the previous one, and a jumper is provided to allow dot or bar mode.

Arquitectura de Computadores 10º Ano: LED Audio VU …

https://arquitectura-computadores.blogspot.com/2008/10/led-audio-vu-meter.html

Figure 1 - The LED VU Meter Circuit L1 to L7 will normally be green (normal operating range) and L8 to L10 should be red (indicating overload). This gives a 9dB overload margin when the unit is calibrated as described below. As shown, full scale sensitivity (with VR1 at maximum) is 4 Volts peak (approximately 2.8 volts RMS).

VU And PPM Audio Metering - www.RADANPRO.com

http://www.radanpro.com/Radan2400/MiscAudio/VU%20And%20PPM%20Audio%20Metering.htm

Rod Elliott (ESP) Introduction VU (Volume Unit) meters are still the mainstay of audio metering systems. The Peak Programme Meter (PPM) was originally developed by the BBC to overcome the shortcomings of the VU meter, which is notoriously bad at showing the peak signal level. The VU meter is average reading, and the

Volumn Unit Meters / Sound Level Monitors electronic circuits

http://www.discovercircuits.com/V/vu-meter.htm

VU & PPM Audio Metering - A versatile and useful VU meter circuit, can also operate as a Peak Program Meter __ Designed by Rod Elliott ESP. VU Meter - This simple VU Meter may be used in variety of projects. Since real electro magnetic type VU Meters are no longer available or too expensive, I decided to make this one using LM3914 and 10 LEDs ...

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