Recent content by vickyeight

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    Help on Sound Absorption Coefficient Calculation

    Hi Mario, we got the 'NSAC' and 'R' text files from B&K 29mm impedance tube (2 microphone transfer function method). We don't have a software to derive other non- acoustic properties such as flow resistivity etc. we are trying to use the equations from...
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    Help on Sound Absorption Coefficient Calculation

    Hey,,,, we are at present doing a similar experiment. Did you solve it yet?? the absorption and reflection coefficient can be obtained from the impedance tube results. you get them as text files. in fact, you get the values of both NSAC (Normal Sound Absorption Coefficient) and R (reflection...