1)   DSSF3 Light 5.0.7.x DSSF3 Light is a highly advanced sound analyzer greatly exceeding the usual FFT analyzer's performance. DSSF3 Light is equipped with the signal generator, the FFT analyzer, the sound level meter, the oscilloscope, and the sound recorder. 2)   DSSF3 Full system Version 5.0.7.x Various sound measurement can be performed using a various functions in the realtime analyzer.DSSF3 is the world's highest class measurement system equipped with the latest technology. 3)   DSSF3 Basic 5.0.7.x The free version of the advanced sound measurement software DSSF3 is now available. It consists of the signal generator, sound recorder and player, and the peak level meter.