acoustics Flashcards
is a science which deals with the production, control,
transmission, reception and effects of sound in an enclosed space.
acoustics
is the human ear’s response to pressure fluctuations in the air caused by vibrating objects. For example, a tap on the wall produces sound because the tap makes a wall vibrate. The vibrating wall produces
pressure fluctuations in the air.
sound
Sound travels in space by a phenomenon; is similar to the motion of a ripple produced by dropping a pebble into a water pond which is called?
wave motion
Types of Sound
- Speech
- Music
- Noise
the number of sound ripples generated in unit time.
frequency
The number of cycles that the air particles move back and forth in one second in a sound wave
the frequency of the wave
a noise whose energy is uniform over a wide range of frequencies. This is analogous to the term “white light”, which consists of almost equal amount of light of different wavelength (colors). A white noise sounds hissy.
white noise
distance between two adjacent compressions or rarefactions in a sound wave.
wavelength
distance between two adjacent compressions or rarefactions in a sound wave.
transmission lost
the ratio of transmitted sound energy to incident sound energy
transmission coefficient
sound propagated through a solid structure.
the sound insulation rating
single number rating of the sound insulation rating of a partition.
superimposed on the static air pressure.
see sound intensity level
sound pressure level
fluctuating pressure of sound superimposed on the static air pressure.
sound pressure
a small space that works as a buffer between a source room and a receiving room.
sound lock
