Acoustics_Vocabulary

-Acoustics : is the term for the study of sound and how sound is experienced. The field of acoustics is divided into several specialist areas. -Articulation Class (AC):  A classification of suspended ceilings according to their ability to contribute to the acoustic privacy between work stations... A high Articulation Class gives some privacy, a lower Articulation Class means lower privacy. Confidential conversation and work tasks demanding concentration need good privacy. -Background noise (dB): Increased background noise can have long-term negative effects, such as illness, fatigue, decreased productivity and efficiency... the people are differently sensitive to sound and noise in general. Privacy and seclusion in open plan spaces can only be solved satisfactory by creating separate rooms for confidential discussions and work tasks needing higher concentration. -Flutter echo:  Occurs when sound bounces between parallel surfaces in a room. -Noise : Unwanted sound. Noise can often be the individual perception of a particular sound, for example: background noise. -Privacy:  Acoustic privacy between working places in open plan offices is expressed with the Articulation Class (AC). -Sound absorbers:  Materials and structures with the ability to take up sound energy and convert it into other forms of energy. They improve room acoustics by removing sound reflections, thus reducing the noise and the reverberation time. -Sound pressure level (dB):  The pressure variations caused by sound waves in air are called sound pressure. The lowest sound pressure level which can be heard is 0 dB, known as the hearing threshold. The highest level which can be tolerated is called the pain threshold and is around 120 dB. <span style="color: #00b0f0; font-family: 'Arial','sans-serif'; font-size: 18.6667px;">-Speech intelligibility: <span style="color: #000000; font-family: 'Arial','sans-serif'; font-size: 18.6667px;"> Speech intelligibility is directly dependent on the level of background noise, reverberation time and the shape of the room... <span style="color: #000000; font-family: 'Arial','sans-serif'; font-size: 18.6667px; text-align: justify;">