MDFourier takes two signals, the first one is designated as the Reference file. The second one is the file under scrutiny, and is referred to as Comparison file.
The first step is loading the Tone Generator to the desired system that will be analyzed. The process for this varies with each platform: from placing the software in a flash cart, burning a CD-ROM or using a custom loader.
The next step is preparing an audio capture device and a computer, in order to record an audio file. Once the audio card is ready, and the cables are hooked up from the system to the audio inputs, the recording process is started from the computer and the Tone Generator should be activated from the system under analysis.
After a short lapse, usually around one minute, the Tone Generator will display a message indicating that the recording process can be stopped. When at least two files are available, one to be used as reference and one to be used as comparison file; a comparison can be made with the Analysis Software from the computer.
from Hacker News https://ift.tt/39HhlqL
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