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2. Soundproofing - Wikipedia

   en.wikipedia.org/wiki/Soundproofing

   The main focus of a residential sound program in existing structures is the windows and doors. Solid wood doors are a better sound barrier than hollow doors. [9] Curtains can be used to dampen sound, either through use of heavy materials or through the use of air chambers known as honeycombs. Single-, double- and triple-honeycomb designs ...

3. Absorption (acoustics) - Wikipedia

   en.wikipedia.org/wiki/Absorption_(acoustics)

   The fraction of sound absorbed is governed by the acoustic impedances of both media and is a function ... Heavy curtains .15 .35 .55 .75 .70 Marble .01 .01 .01 .01 ...

4. Noise control - Wikipedia

   en.wikipedia.org/wiki/Noise_control

   Sound treatment panels contrast with red curtains in a church meeting hall Soundproof doors in a broadcast center Acoustic ceiling tiles. Architectural acoustics noise control practices include interior sound reverberation reduction, inter-room noise transfer mitigation, and exterior building skin augmentation.

5. Lights, sound, curtains: Students learn technical theater in ...

   www.aol.com/lights-sound-curtains-students-learn...

   Students can assist as stage managers, lighting and sound technicians and fly operators controlling the curtains. These roles can teach skills relevant for careers in theater, film, live ...

6. Theater drapes and stage curtains - Wikipedia

   en.wikipedia.org/wiki/Theater_drapes_and_stage...

   The safety curtain or fire curtain is used to separate the stage from the audience in case of a fire onstage. It may be made of heavy fireproofed fabric or solid steel sheet. Some were made of asbestos cloth. After several deadly theater fires in the early 1900s, safety systems were developed to isolate the stage, direct smoke away from the ...

7. 10 Tips for Seniors to Get Better Sleep This Year - AOL

   www.aol.com/lifestyle/10-tips-seniors-better...

   If needed, use blackout curtains, eye shades, earplugs, or a white noise machine. Invest in a comfortable mattress and pillows: ... Avoid heavy meals close to bedtime: ...