Getting Started

A sound card is required to use the program. The software will automatically detect the installed sound devices on your PC.
Please ensure that the sound card and drivers are installed and enabled before you open the program.
Please ensure that the sound card software is correctly set-up and that the correct source input (microphone jack) is selected for the microphone.
A run-time engine is part of the installation.
Please ensure that the program is fully functional and compatible with your PC and sound card before purchasing an license key.

Please perform the following basic steps to measure a frequency or octave spectrum with the use of your PC sound card:

Before you open the program please ensure that the sound card is enabled and connected to a microphone.
Open the program by selecting Programs/nvhsoftware/Spectro Frequency Analyzer 2.0 from the Windows button.
Select a sound device in the dialog box at the top of the screen
Click the Start button in the top left-hand corner of the screen to perform the analysis.
If required adjust the signal processing parameters by left clicking the mouse on the FFT Analyzer tab.
Scroll the cursor lines with the mouse in the graphs to determine the amplitude for a specific frequency.
Graph results can be saved in a text file by selecting File in the menu at the top of the screen.
Graph properties can be changed by selected the Graph tab in the tab window.