What is an acoustic rating?

Sound Transmission Class (or STC) is an integer rating of how well a building partition attenuates airborne sound. In the US, it is widely used to rate interior partitions, ceilings, floors, doors, windows and exterior wall configurations.Click to see full answer. Thereof, what does an STC rating of 50 mean?Best Blocking (STC 50) – Full Height Walls (Preferred) Share. A sound blocking level of STC 50 means that a listener in a quiet room would need to exert effort to hear raised speech levels in adjacent rooms, and the speech would not be understandable or disruptive.Subsequently, question is, what is acoustic performance? The definition of acoustic is “not having electrical amplification.” When it comes to recorded acoustic performances, you need a microphone to record. These days an “acoustic” version of a song just means acoustic instead of electric guitars, and pianos instead of keyboards. Besides, what is a good STC rating? STC stands for Sound Transmission Class. Basically, STC ratings are an established way to average how much sound is stopped by something. STC ratings are used for windows, doors, walls and most building materials. For windows, STC ratings range from 18 to 38.What is RW acoustic rating?A Weighted Sound Reduction Index or Rw, is the rating used to measure the level of sound insulating abilities of walls, floors, windows and doors. It is expressed in decibels (dB), and is used for a partition or single component only. The higher the Rw figure, the better the sound isolation that is provided.