The MFCC building block is using Mel-frequency cepstrum which is based on how humans hear.
Using this building block makes sense for human speech but I think for other things like door bells, faucets, showers a linear scale (or other scale) might make more sense. So is there a building block that is implementing the spectogram on a linear scale ?
I am especially asking this as the linear spectogram of my doorbell in audacity looks more “distinguishable” than the mel spectogram as you can see in below screenshot for the same audio fragment:
Top = Mel
Bottom = Linear
Spectogram settings Top:
Spectogram settings Bottom: