WinAIRR - Version 4.01 A software tool for measuring the frequency response of loudspeakers. It runs on a PC with Windows95, Windows98 or Windows/NT equipped with a soundcard that must feature full-duplex operation. Full-duplex means that the soundcard will allow simultaneous recording and playback. This version features: Pulse, MLS, Sine-wave, Square- wave, White noise, Sweep, upper and lower time domain cuts, Delay adjustment, Frequency, Phase, Waterfall and Histogram plots, Full Mixer control, Sampling rates from 8kHz to 44kHz, Length from 64 up to 16384, etc.