Ansys and Comsol could be the best.

https://www.ansys.com/en-gb/products/structures/vibrations/harmonic-vibrations-and-acoustics

https://uk.comsol.com/acoustics-module

There are other software packages like: https://www.mscsoftware.com/ that could be useful. https://www.youtube.com/watch?v=6JnJVF-HLIA

There are some good publications to read as well, here is an example:

https://pdfs.semanticscholar.org/068b/4cd73758ab97c785d0cd5774e31c4d373ade.pdf

Hope these help.

Dear Mohammad,

I agree with Mani Entezami and I suggest you Comsol as well.

Best of luck.

If you are just looking to do basic transmission loss calculations, you can calculate the sound transmission loss (STL) by using STL = 10log(1/τ) where τ is the transmission loss (you can look up tables of values for common materials).

If you are looking for transmission through more complex structures in terms of geometry or material, I agree that Comsol would be a viable option.

(For transmission loss basics: https://www.mne.psu.edu/lamancusa/me458/9_trans.pdf)

Hi, it depends on the application that are you looking for. Methods for the numerical solution of the wave equation (as stated before i.e. FEM ) can estimate the behaviour of a wave passing throught a partition with very good accuracy (if the input data is correct). For more simple calculations, INSUL is another option that is based on mass law and another simplified approaches.

Any book of noise control or noise insulation provides you a grasp on this.

If you need a simple estimation of the sound transmission loss of partitions, INSUL is a good tool ( http://www.insul.co.nz/ ). Otherwise, a finite element software should give you a more complete answer.

Best

JP Arenas