This is about the decibel scale on the frequency analysis window.

If you add up all of the y coordinates along the frequency graph, would the resulting decibels equate to the overall volume of the track?

So even if there is a peak that goes up to 0dB, you would have to add up all of the decibels from all frequencies in order to get the volume of the track. Am I correct in thinking this?

I understand that decibels are a logarithmic scale so it’s not as simple as just linearly adding -18dB and 0dB for example.

I’m writing a paper on the Fourier transform, so any help regarding this would be appreciated.