This is the latest version as of January 2003. This version program includes all features the DSSF3 has as of January 30, 2003. (The DSSF3 is our best sound measurement/analysis software and has been frequently updated.)Quality sound measurement software equivalent to at least US$10,000 hardware.The software license of RAL costs just US$24, but RAL is more functional than the usual FFT analyzer. General realtime measurement function is entirely included. It has the signal generator and FFT analyzer for supervising distortion of the frequency characteristic, a S/N ratio, and a volume level. It can be used broadly from a home audio, and a car audio to a concert hall. Function list Signal generator Peak level meter Power spectrum 1/3 octave analysis 3D graph (TEF) Oscilloscope

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