Low frequencies travel through structure walls and floors more than highs

Evidence

If one is in a living situation with neighbors a wall or floor away, as many are and I am now, moderating sound levels is a requirement, especially as it is the low frequencies that travel throughout a structure. If the sound quality is high, sound levels can be lower—in my experience. — Toole, Floyd E, Sound reproduction- the acoustics and…, 858

Categorization

• XREF: Connects to the ‘trees as infrastructure’ article’s theme of physical propagation, though tangential; better matches Toole’s room-acoustics material generally.