Multi-Instrument is a powerful sound card based multi-function virtual instrument software. It contains Oscilloscope, Digital Filter, Spectrum Analyzer, Correlation Analyzer, Dynamic Signal Analyzer, Octave Analyzer, Distortion Analyzer, Multimeter,SPL Meter,Frequency Counter, Counter, RPM Meter, Signal Generator (Function/Arbitrary/Noise/Sweep/Burst),Waterfall Plot, Spectrogram,Data Logger,LCR Meter, User Configurable Device Test Plan,Vibromer.