Computer Aided Signal Analysis Software provides comprehensive data acquisition, signal analysis, Modal excitation, Modal data collection with DOF increment capability. Spectral Dyanmics - India supplies Computer Aided Signal Analysis Software. Spectral Dyanmics - India also offers Shaker Control system, Data Acquisition system Analysis Systems and software for vibration testing, structural dynamics and acoustic analysis. The Computer Aided Signal Analysis Software comes with user definable display of Contains time domain, frequency domain and H [f] displays with each display pane having complete cursor, annotation and graphics control.