Free UA 610 Preamp (in: Effects)

By: jamcat
18 Jan 21:30

I’m not terribly well-versed on reading sonic imaging. I mostly go on how it sounds, since we use plugins for sound, not pictures. That said, this is how I interpret the spectrogram we’re looking at:

This is a sinewave sweep over time, from 20 Hz to 20 kHz. As the frequency increases, we see some parallel lines come in frequencies above the fundamental. Each line is a harmonic, and what you would expect from tube gear such as a Pultec. There is a total lack of any cross lines that decrease in …

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