Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
jon03:
Designing a sound level meter is a mean task!
There are many things to be considdered: Microphone frequency response, min. + max. SPL levels to be measured, mic. directionality and distance to surrounding objects. Frequency of interest and weighting curve (flat, A, B, C etc). Low-noise amplifier design and calibration (how would you do the calibration?). And so much more!
Radio Shack has a $40 unit. Get one to get an idea of the complexities involved.
Cheers, E
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