The acoustic design of the family video hall is divided into two parts:
First, sound insulation design
1, wall sound insulation
First, make a layer of keel in the wall, leave a cavity of ≥50mm in the middle, and then fill the cavity with sound-absorbing cotton. (The sound-absorbing cotton here is not rock wool or glass wool. Everyone knows the above two kinds of sound-absorbing cotton to the body. Harmful) Sound-absorbing cotton should choose eco-friendly sound-absorbing cotton made of polyester fiber. Then use a double-layer gypsum board as a layer of lightweight wallboard outside the keel and place the sound-damping damping material between the two layers of gypsum board (note: all butt joints of the gypsum board should be sealed with putty or sealant).
2, ceiling insulation
The construction method of the ceiling sound insulation is the same as the wall construction. If there is a suspended sound device in the ceiling part, it is necessary to install a shock absorber at the connection between the boom and the floor to prevent the sound of the low frequency vibration from propagating through the boom to the upper floor.
3, the ground sound insulation (can do it according to their own situation)
For sound insulation on the ground, use sound-insulating cushions on the floor, cover the sound-insulating mats and cover them with 40mm thick cement. Finally, install decorative materials such as floor or ceramic tile on the floor. If you don't want to spend too much money, you can lay carpet directly on the floor. .
Second, sound absorption design
Since the requirements for sound are higher when watching movies or singing karaoke, it is also necessary to absorb the sound of the wall. At this time, someone may ask, is it not already soundproofed? Here I want to talk about the difference between sound insulation and sound absorption. Sound insulation is to isolate, cut off or separate the sound. The sound absorption is to convert a part of the sound energy of the surface of the incoming material into heat energy loss, reducing the reflection of the sound, thereby improving the clarity of the sound. Therefore, in order to achieve the best appreciation effect, the sound absorption treatment is also a crucial link. The surface acoustic absorption is now generally selected as a polyester fiber sound absorbing panel. This material has good sound absorption effect, good color, environmental protection and simple construction.
The above is the decoration and soundproofing and sound-absorbing construction methods of the Family Film and Television Hall. I hope that I can help my friends who need to do the film and television hall to avoid unnecessary waste caused by noise disturbance to the neighbors or wrong decoration.
Function description
The socket is ordinary converter,with two output 5V2A power USB power supply at the same time,can be very convenient in use electrical appliances and recharge the equipment at the same time,such as digital products like Iphone Ipad,MP3,MP4 etc.The charge apply to full range of international AC output,no-load power consumption less than 0.3W,with short circuit,overload,over-voltage protection,can be convenient for your life and save more energy
Timer Control Time Adgustment
1.Press the power switch 1 time,the 1HOUR LED will light on.The Timer into ON mode,USB and control socket output ON .
2.Continuously press the power switch the LED light on,the Countdown mode and LED light on will cycle change from 1HR,2HR,4HR,6HR,8HR,10HR.
3.Choose you need countdown time mode,the mode LED will lighto on,start countdown until countdown time finish,the control output and USB change to OFF
4.Then the countdown is start,The Time indicate LED will from high to low auto change until Countdown finish off.
Failure analysis:
1.check whether the power supply connection is good
2.check whether the USB cable is loosen
Warning Note:
1.Use indoor and dry location ONLY
2.The load max does not exceed 15A 3600W
3.This product does not convert voltage please do not miss use DO NOT exceed the maximum loading of 3600 Watts 15A
4.Always have earth connection for safety reason
5.If in doubt please consult with a qualified electrician
USB charger socket, USB socket, USB plug, USB plug socket
NINGBO COWELL ELECTRONICS & TECHNOLOGY CO., LTD , https://www.cowellsocket.com