Final answer:
Soft porous boards are used in cinema halls for sound absorption, which reduces echoes and ensures clear audio for the audience. They also provide noise insulation and are part of the theater's acoustic treatment to optimize the listening experience.
Step-by-step explanation:
Importance of Soft Porous Boards in Cinema Halls
Soft porous boards are put in cinema halls to enhance the acoustic quality of the space. The boards are essential for sound absorption, which helps to reduce echoes and reverberations in the hall. This sound-absorbing feature is crucial because it ensures the audience can hear the audio from the film clearly without interference from unwanted noise. Moreover, these materials aid in managing noise insulation, keeping sounds from outside the cinema from disrupting the movie experience. Another aspect to consider is acoustic treatment, which is about adjusting the characteristics of the sound in the room to optimize it for the best listening experience. Therefore, the use of soft porous boards in cinema halls is a fundamental aspect of theater design to achieve high-quality sound performance.