From the developer: "Fully featured, accurate and extremely powerful, it was designed with the professional audio engineer in mind. But it's so simple to use and inexpensive that even the casual hi-fi enthusiast will find he can't live without it. Just fire it up and hit the spacebar to start analyzing, it's that simple. But don't let the simplicity fool you. It features an ultra-fast fft engine, and powerful and useful features found only in the more expensive analyzers. So what's the catch? None! There's no compromise. It's the best analyzer availabe at any price, yet it's less expensive than anything on the market. A decent analyzer goes for a couple hundred dollars! Look at SpectraPLUS! Not anymore! With SpectraScope, you won't be disappointed. And at this price, who needs cracks that dont work or pirated copies that crash! Order your copy today! Among SpectraScope's key features are: ? An overlay window, with which you can save plots and write them back to the plot window at a later time for easy comparisons. You can also save the fft data to disk. ? A resizeable plot window ?Drag and drop support for long-term spectrum analysis of multiple wavefiles. ? Save plots in bitmap, jpg, or png image formats with one click. You can also capture directly to the windows clipboard. Data can also be capture to the clipboard as spreadsheet-ready tab-delimited text. ? User-selectable log or linear frequency scaling. ? Multiple plot markers can be added by clicking on the plot window. ? 4 modes of analysis: freerun, peak, and either long-term or rolling averaging. You can select the number that makes up the rolling average from between 3 and 20. For long-term averaging, the number of slices that make up the average is displayed on the plot. ? 8 different windows available. ? User-selectable fft size and sample rate. ? Fully adjustable amplitude range from 20 to 100 dBv. ? Many other features are accessible in the options window."