How do we measure dynamics?

[Ooidal]

This can, by itself, create nonlinearities in the very air (air is not a linear transmitter of sound, and the distortions become quite evident above 120SPL or so, and measurable below that.)

I am not keeping up with most of this thread but this bit has intrigued me. If air is not a linear transmitter of sound is there a material out there that is or is at least the most optimal?

 

[j_j]

I am not keeping up with most of this thread but this bit has intrigued me. If air is not a linear transmitter of sound is there a material out there that is or is at least the most optimal?

The mathematical description of air propagation will show you the problems. It's probably not a discussion for this forum, but nonlinear acoustics is a thing, just not one that's good to have around ears.

 

[killitmore]

which part of music is often most dynamic? Bass / midrange or treble? Or all of them?

 

[sfdoddsy]

Bass has the most dynamics. And bass dynamics are the hardest to reproduce. Many speakers can accurately recreate the treble, midrange and upper bass.

Capturing the dynamics of low bass is far harder. You need multiple large drivers, subwoofers or both.

 

[Sal1950]

which part of music is often most dynamic? Bass / midrange or treble? Or all of them?

Yes bass, specially low bass, is the hardest to reproduce but for general dynamic range it's pretty much across the board.