The acoustic ohm is a unit of measurement of acoustic impedance, which is the ratio of acoustic pressure to acoustic volume flow. In SI. units, pressure is measured in pascals and flow in m^3.s^-1, so the acoustic ohm has units Pa.s.m^-3. (In the cgs system, there is also a cgs ohm with units (dyne/cm^2)/(cm^3/s).)

See also

• SI units
• Dyne

References

• Definition
• Second definition
• Definition with derivations