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# How to calculate Overall value

## How to calculate Overall value

(OP)
I have data for frequency and respective Transmissibility, how to find the overall value for a given frequency band?

Thnaks,
Sriram

### RE: How to calculate Overall value

RMS = square root of sum of amplitude squared.

I have not seen an overall value applied to Transmissibility, but there is always some new (to me) to learn!

Walt

### RE: How to calculate Overall value

We used to report transmissibility in 1/3 octaves, so that might be what the OP is getting at. It's just 10*log(sum of Vout^2/sum of Vin^2) over the frequency range in question.

Cheers

Greg Locock

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