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| Evaluation of White Noise's Acoustic Performance on some Industrial Insulating Materials
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Binaebi-Soroh Etaribo, Olisa Yemi and Olala Olali
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Abstract:
The assessment of white noise's acoustic performance on some industrial insulation materials is presented in the current work. The standing wave method is used to measure and evaluate the acoustic properties of sound-absorption materials, including their acoustic impedance and absorption coefficient. The signal processing method was combined with a burst of white noise. The technique is founded on the straightforward harmonic motion equation, however, the variable used instead of time was distance. The measurement enables for a reasonable period of time, 1 cm of distance, with resolutions down to 5 Hz in frequency. Nonetheless, these characteristics of the distances and the resolution of the frequency employed do have an impact on the outcomes by the responses of the signals that are generated at each measurement period. The results from the analyzer reveal a wide range of data details describing the enhanced acoustic impedance and absorption coefficient chart of evaluated samples.
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