Medium density and elasticity shape the pressure-velocity amplitude relation
Evidence
The velocity and pressure components of a sound wave are also related to each other in terms of the density and springiness of the propagating medium. A propagating medium that has a low density and weak springs would have a higher amplitude in its velocity component for a given pressure amplitude compared with a medium that is denser and has stronger springs. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 165
Categorization
- corroborated: 4 independent passages support this claim — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 165
- XREF: connects to: Boom-producing surface motion involves extreme acceleration but modest velocity; Impedance equals applied force divided by attained velocity; Excitation in an elastic medium generates waves from the source (+6 more)
Broader Connections
- Higher material density slows sound propagation speed
#expands(0.85) - A medium’s intrinsic acoustic impedance equals density times sound speed
#expands(0.80) — Eric J. Heller, Why You Hear What You Hear- An…, 102 - Sound speed in solids depends only on density and elastic modulus
#corroborates(0.75) — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 64