Yes. There are tools available to read segy, although you may need to find them on the file exchange. I did not look to see if there are tools for seg2 format, nor did I look to see if recent releases of MATLAB now support that directly without recourse to the file exchange.
Since I have no idea what you consider to be "normal MASW analysis", you might want to explain exactly what that phrase implies. Since this forum may not be populated with many people who know what you want, be clear. Explain your needs, without using highly specific jargon.
Can you do virtually any analysis at all? Yes. So I will contend that yes, you can do what you want. Very likely it is true that you will need to write some code to do exactly what you want. But that is always the case.
