#noise analysis

ETLCO provides professional Noise and Odor Monitoring Services in Saudi Arabia, supporting industrial, environmental, and regulatory compliance needs. Based in Al Jubail, ETLCO delivers advanced odor monitoring, air quality assessment, and noise analysis using international standards. Their services help industries minimize environmental impact, meet Saudi environmental regulations, and maintain safe, sustainable operations across oil, gas, petrochemical, and manufacturing sectors.

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It sometimes occurs that signals are captured with A-weighting applied to the data by the acquisition device. This can be a problem if, for example, you wish to use the data in a hearing test or to use it for a structural vibration analysis. Now, A-weighting allegedly mimics what the ear does to a signal. If we play back an A weighted sound then we perceive a double A-weighted signal which is clearly not intended. When doing structural work it is usually the lower frequencies, say 2kHz or less, that is generally required. A-weighting seriously attenuates the low frequencies and also applies gain above 1kHz.