Noise measurement-decrease in sound intensity with distance

AI Thread Summary
The discussion revolves around the challenge of designing a noise level meter that accurately triggers an alarm for hazardous noise levels, considering sound intensity decreases with distance. The creator acknowledges that while the meter can detect sounds from afar, it struggles to differentiate between low-intensity sounds nearby and higher-intensity sounds further away. Participants suggest that the primary purpose of the meter is to warn against high noise levels at its location, questioning the necessity of detecting distant sounds. Solutions proposed include positioning the sensor closer to the sound source or deploying multiple devices to cover a broader area. This highlights the need for effective strategies in noise measurement to ensure accurate hazard detection.
Nau
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I am making a noise level meter, that would trigger an alarm, if the noise level has reached hazardous levels. However, one problem with noise is that it'd intensity decreases with distance, so that the meter would percieve a low sound near the meter and a high sound far away as equal. So does anyone have any innovative idea about how I can handle this problem?
 
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Why is this a problem?
You are presumably not trying to make a detector that can detect the level of noise far away from the sensor?
 
No my detector is sensitive enough to detect sounds at a distance. But ofcourse when the sound would have traveled a long distance, its intensity would have decreased, and the meter would also give a small reading. However, a low intensity sound near the meter might be giving the same reading. that is the problem.
 
I am still not followíng you...
Isn't the purpose of the meter to warn agains high noise levels at the location of the meter?
If so, why is it a problem that it is not triggered by low noise levels near the meter?
 
you need to either put the sensor closer to the source, or install multiple devices so that you can cover a wider area.
 

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