converting sound data from Pascal to dB(A-weighted)

[Igni]

Hi,

Request you to help me in converting the attached sound data with the channel name Mic(2) to dB(A).

Regards,

X. Ignatius

[Walter_Rick]

Hello X.Ignatius.

Since DIAdem 2014 we support the frequency weighted filtering of noise signals (Frequency Weighting (A-, B-, C-Filtering)). To import the data you must install the DataPlugin for UFF58 data format.

Greetings

Walter

[Igni]

Dear Walter,

Thanks for your reply. I tried with diadem 2015, the function is there but the result obtained was again in Pascal. My intention is to convert the pascal data to dB first and then find A-weighted in dB.

Regards,

X. Ignatius

[Walter_Rick]

Dear X. Ignatius,

After calculation the A-weighting you can easily turn the result into dB like this:

CalcQuantityBased = true
Call Calculate("Ch(""[1]/Chn_Res"")= Ch(""[1]/Chn_Source"") / VU(20,""µPa"")",,,"dB")

Greetings

Walter

[Igni]

Dear Walter,

Should we need to apply 20Log(base 10) to the result obtained to the equation.

Regards,

X. Ignatius

[Walter_Rick]

Dear X. Ignatius,

If the quantity based calculation is switched on, it should not be necessary because the target unit is declared in the calculation command and DIAdem manages the calculation based on the units.

Greetings

Walter