Updated on January , 2017. Copyright © 2017 KASUGA ENTERPRISES Vasai Maharashtra India. Acoustics Study Acoustics play an increasing role in the success of a project. As such, there is  undoubtedly a growing awareness and need for properly designed, acoustically treated  rooms. To achieve ideal room acoustics, one must first understand the intended use of the  room, then carefully study and analyze direct and reflected sound for both voice and  music. Music is best appreciated with a warm or rich reverberation; speech is clearer in  a room with less reverberation. These competing characteristics pose a challenge to the  designer, which is why it is critical to work with acoustic experts. At KASUGA  ENTERPRISES, we design accurately to achieve a distinctive result with minimum  concession. Reverberation time refers to the amount of time required for the sound field in a space to  decay 60dB, or to one millionth of the original power. In simple terms this refers to the  amount of time it takes for sound energy to bounce around a room before being  absorbed by the materials and air. Closed spaces that don't have materials that absorb  sound have long reverb times (concrete arenas, big rooms with Gyproc walls, big water  tanks etc.), and very absorbent rooms have short reverb times (like a movie theatre, or a  carpet and drapery showroom). Reverberation time is important because it can affect how well you understand speech,  and it can change the way music sounds. The effect on speech intelligibility is  noticeable in a gymnasium or arena, where you often can't understand someone who is  only 10 or 15 feet away from you. Once you are an adequate distance away from a  person speaking to you, the sound level of the room's reverberant field is as loud as  their voice. The effect of this could be replicated by having a large group of people  standing beside you repeating what you say at different levels and at different times. All  this additional babble coming back from the walls, floor and ceiling mask and muddle  what is being said. When the reverb time is long enough, it not only masks the next  syllable, but it can mask the next word. The preferred reverberation time range for a  space intended for speech is 1.0 second, or less. As the reverberation time (or RT60)  becomes longer than that, it becomes increasingly difficult to understand unaided  speech, and if it is much shorter the room sounds very dead. As the RT60 gets much  longer, 3, 4, or even 5 seconds, speech becomes impossible to understand. This can  become a life safety hazard in some environments like swimming pools, and industrial  settings, where warnings cannot be understood. Music is the other common victim of inappropriate RT60. A pipe organ sounds like a  huge harmonica in a very dead room (say with a RT60 under 0.8 seconds), it may be  loud but it has no character. A symphony orchestra in an anechoic chamber (a room  with no reflected sound) would all but disappear if you looked the wrong way. On the  other hand, a lone drummer playing in a space with a 6.0 second RT60 would disappear  into a sound blizzard of reflections. For each type or style of music there is an optimum  RT60, as well as a preferred set of early reflections.