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The sound-absorbing material is
the primary technical means building acoustics and noise
control, its use is very extensive.
The manipulation of acoustics reverberation time, such as
concert halls, theaters, recording studio, studio, hearing room,
conference room, multi-function hall, gymnasium, auditorium,
etc., are often selected, arrange appropriate sound-absorbing
material to reach the best reverberation time.
The public transportation construction, such as the airport
terminal, the station waiting room, terminal waiting rooms such
as the construction, because of the need to constantly broadcast
aircraft, flight vehicle to set sail, arrived in the hour or
delay information, proper arrangement of sound-absorbing
material and wall ceiling. On the one hand can travel
information broadcast definition; noisy noise on the other hand
can also decrease the passengers, the more quiet environment.
The hall of the echo sound eliminate disadvantages. When the
direct sound and reflected acoustic path difference arrived at
17m, the time difference between two dynamic reached 50ms, the
human ear can hear the echo, the long wall of the hall, then
briefly reflected sound close to the proscenium seat area
occurred echo. The sound absorption material can be removed
through the rear wall.
The thin wall of the moving sound. Such as gypsum board, calcium
silicate board, FC board, TK board, fire board light magnesium
cement wall, the interlayer filled with porous materials such as
glass fiber sound-absorbing cotton, cotton, wool and wool, sound
insulation effect can be significantly advancing this kind of
wall.
The use of mechanical equipment on the sound insulation cover
and the journey of sound barrier for acoustic source side wall
made of sound absorption, the noise reduction effect can.
The construction of the pipeline ventilation and air
conditioning system of the muffler, especially the dissipative
silencer is large, need to use many of the sound-absorbing
material.
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