PC based Digital Sound Level Analyzer
D.G.Wadnere1, G.A.Wadnere2
1Prof. D.G. Wadnere, B.E Computer Engineering, Sandip Polytechnic, Sandip Foundation , Nashik, India.
2Prof.G.A.Wadnere, M.E. Mechanical Engineer, Sandip Polytechnic, Sandip Foundation ,Nashik, India.
Manuscript received on May 21, 2014. | Revised Manuscript received on June 01, 2014. | Manuscript published on June 30, 2014. | PP: 140-141  | Volume-3, Issue-5, June 2014.  | Retrieval Number:  E3152063514/2013©BEIESP

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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: Sound energy meters measures sound pressure level & are used in noise pollution studies. Most of the sound level meters are hand held, battery powered devices & are often limited in functionality beacause of poor processing power limited storage & poor display. A Pc based sound level meter will not only overcome these limitation but more advanced functionalities can be implemented in it. Ac signal from microphone is converted into DC. It will make use of MAX187,Max 232 & LM 358 ICs as main component for converting sound into digital signal. The working of this meter will confirm the noise levels as per environments. It is easy to use & has small package size. This circuit is ideal for the circuits where power consumption & space are crucial. This project also is able to detect ,analyze & matches the frequency of a particular human being as per our requirements. This project is basically design for classroom application.
Keywords: LM 358, MAX 187, MAX 232, Sound energy meter.