Introduction - If you have any usage issues, please Google them yourself
Frequency Analyzer: There is a white vertical line moving from left to right. It leaves behind a colorful trace. The colors correspond to the intensities of various components of the sound. For instance, if you whistle into the microphone a pure sine wave of the frequency 1 kHz (you can easily learn to do it using the feedback from the Frequency Analyzer), the Fourier transform will have a sharp peak at 1 kHz. You ll see the program draw a thin line, probably red or yellow, depending on the volume, at the height corresponding to 1 kHz. If you lower the pitch of your whistle, the line will move downwards.