Some results on the combined time and lag weightings are presented. Five generalized families of lag and spectral weightings have been considered. The important parameters such as the shape factor, effective bandwidth, half-power bandwidth, etc. have been computed for all the families under study. Though the bandwidths vary significantly for different weightings, it has been observed that the ratio of the effective bandwidth to half-power bandwidth is more stable. It has been found that this change is within plus or minus 4% for the wide variety of weightings.