Identity and context
Know which sound object is described, under which recording context, with which quality level, and with which documentary markers.
Overall behaviour
This layer gives the broad portrait: useful duration, noise floor, general stability, and balance between tonal core and diffuse halo.
Compact summaries
Vectors and matrices summarize the sound compactly to facilitate comparison, indexing, and retrieval.
Dominant structures and trajectories
Modes and peak tracks follow important lines of the sound through time.
Interpretive layer
A human reading can be added afterwards, but it should not be confused with the measured part.