Fundamentals of Acoustics

1.Fundamentals - signals and sound

i. Properties of signals and systems

ii. Sound pressure level

iii. Bandpass Filters - 1/3 octave and 1/1 octave filters

iv. Sound power and sound power level

2. Perception and evaluation of sound signals

i. Frequency weighting

ii. Time rating

iii. Evaluation of sound signals

3. Free sound propagation

i. Plane wave propagation

ii. Concept of the surface Impedance

iii. Sound intensity

iv. Spherical wave propagation

4.Reflection, transmission and absorption

i. Absorption, transmission and reflection of sound intensity

ii. Surface impedance and reflection factor

5. Room acoustics

i. Definition of reverberation time

ii. Reverberation time vs. absorption

iii. Sound power and sound pressure in the diffuse sound field

iv. Sound pressure level and sound power in the room v. Technical sound absorbers