What spectra do tell us

The impact of the amp and the microphone

One of the most important tools in digital signal processing, if not THE most important one, is the spectral analysis. In this post I discuss what it might unveil about the recording procedure. Should I just use the line-out of my amp? Or better a microphone picking up the signal of the amp? Well, which microphone then? An old friend always told me a good sound has to travel through air at least once. I want to find out why. »