Logarithmic addition of arrays

Hello everyone!

I currently have a 1*2 cell array. The cell array might also be additional fields. I have attached .mat file containing the variable with this query. The data in the given cell array contains the sound powers in 'db'. I am required to perform the logarithmic addition of all column vectors(100*1) in my cell array such that the resulting vector is of logarithmic addition of all the column vectors.

Thank you in advance!

[Geoff Hayes]

Duplicate of previous post http://www.mathworks.com/matlabcentral/answers/251779-logarithmic-summation-of-cell-array.