How to calculate Overall value How to calculate Overall value sriram99 (Aerospace) (OP) 18 Jan 18 13:19 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 Strong (Mechanical) 18 Jan 18 16:48 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 GregLocock (Automotive) 18 Jan 18 23:10 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 New here? Try reading these, they might help FAQ731-376: Eng-Tips.com Forum Policies http://eng-tips.com/market.cfm?