Architectural & Building acoustics primary aim is improving the sound in rooms. We might want to reduce background noise in a recording studio, improve the design of a public address system to make speech more comprehensible in a shopping centre, or put acoustic treatments on a wall to make music in a concert hall sound better.
Two types of sound challenges need to be considered when planning a new building. The first being Reverberation, this is caused by multiple reﬂections of the original sound by the surrounding surfaces. An important effect of this is to extend the “life” of the sound after it has stopped. The time taken for the sound to die away is the Reverberation time. Different amounts of reverberations suit different uses.
Music sounds subjectively “better” in a room with more reverberation. However, this is not the best environment for public speaking as the words start to over making it difficult to understand.