how to realize Multiply Accumulate in SigmaStudio

hello everyone,

     I want to realize the function of VAD (voice active detection). In matlab, I use the model of  Multiply Accumulate calculate the energy of a frame. However,  I can't find the correspondent model in SigmaStudio. Are there VAD model in SigmaStudio, or are there other ways to get the Multiply Accumulate model in SigmaStudio?

     Thanks.

Note：the model of  Multiply Accumulate in matlab is followed as