In this work crustal structure of the south-eastern region of Bangladesh is estimated by using seismic surface wave data. In order to make a relationship between earthquake wave and crustal structure of an area, time frequency to amplitude analysis which is an extension of time frequency analysis is brought for the analysis of synthetic and real data. Analyses have well marked the sequences over the recorded earthquake wave however it lacks to make a meaningful relation with crustal parameters though it is revealed that the technique can be further used for characterization of the geology of...