Design for audio level meter?

b3keys · 10th January 2010, 05:44 AM

I (and I'm sure a lot of other musicians) have need for an audio level meter (sound levels tend to creep up exponentially over time at gigs).
It doesn't need any fancy meters or calibration standards... just something that would drive say 5 or 6 LEDS in various colors that could be placed across the room so the band could see it. I would think it would need to be damped to hold the highest level maybe for a second or so. It would be "set" by cranking up the band to level the bartender could handle, turning the pot to light one or two of the lights... (well you get the picture).
Anyone have a design for something like this???
Thanks

Mooly · 10th January 2010, 06:46 AM

The LM3914 ic might be suitable for you.
Just google LM3914 sound meter etc

Some applications here,
http://www.datasheetcatalog.org/data...r/DS007970.PDF

10th January 2010, 05:44 AM	#1
b3keys diyAudio Member Join Date: Apr 2009	Design for audio level meter? I (and I'm sure a lot of other musicians) have need for an audio level meter (sound levels tend to creep up exponentially over time at gigs). It doesn't need any fancy meters or calibration standards... just something that would drive say 5 or 6 LEDS in various colors that could be placed across the room so the band could see it. I would think it would need to be damped to hold the highest level maybe for a second or so. It would be "set" by cranking up the band to level the bartender could handle, turning the pot to light one or two of the lights... (well you get the picture). Anyone have a design for something like this??? Thanks

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10th January 2010, 06:46 AM	#2
Mooly diyAudio Member Join Date: Sep 2007	The LM3914 ic might be suitable for you. Just google LM3914 sound meter etc Some applications here, http://www.datasheetcatalog.org/data...r/DS007970.PDF

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