acoustics


 * Acoustics





** ** Wavelength: ** Distance between matching points on the wave. (m) ** Transverse: ** Vibration at right agle to direction of travel.
 * Speed: ** Distance travelled in unit time. (m/s)
 * Frequency: ** Number of complete waves in one second. (Hz)
 * Longitudinal: ** Vibration Parallel to direction of travel.


 * // Sound //** // Waves And Their // **// Sources (VIDEO)

//** **Sound ** is caused by vibration of things. The vibration of small objects create a high frequency sound and large object create low frequency sounds when the object vibrate.

such as a church, is perceived as being more reverberant than a well-furnished living room.
 * Reverberance ** is linked to the speed at which sound energy disappears in a room. An unfurnished room with hard surfaces,

that are important here. Room acoustics also include how we as humans perceive different acoustic phenomena.
 * Room acoustics ** are about the way in which sound behaves in a room. Sound transmission, sound absorption, sound reflection and sound diffusion are all aspects




 * The ceiling’s effect on different acoustic descriptors: **

sound-dispersing (scattering) objects there are, the greater the benefit of the ceiling. In a sparsely furnished room, the reverberation time can be long as the sound energy lingers between sound-reflecting walls.
 * Reverberation time: ** The sound-absorbing ceiling will interact with the sound-dispersing (scattering) furnishings in the room. The more

** Sound level: ** The sound level that is constantly generated in the room will, on the other hand, be effectively dealt with by the ceiling and be less dependent on sound-dispersing (scattering) objects. A sound absorption class A product provides the most effective decrease of the sound level.

A good, effective, sound-absorbing ceiling contributes to a good relation between early and late sound reflections in such a way as to benefit speech clarity. 
 * Speech clarity: ** Suspended ceilings have a positive effect on speech clarity by reducing the reverberance in the room.

**Acoustic in the City**

Acoustic Map in the Desing Urban

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