NCIDQ IDFX Practice Exam

What is the recommended reverberation time for small rooms?

1. 0.1-0.3 seconds

2. 0.3-0.6 seconds

3. 1.0-1.5 seconds

4. 1.5-1.8 seconds

The correct answer is: 0.3-0.6 seconds

The recommended reverberation time for small rooms typically falls within the range of 0.3 to 0.6 seconds. This reverberation time is ideal because it strikes a balance between clarity and warmth, allowing sounds to be heard distinctly without excessive echo. In smaller spaces, shorter reverberation times help to prevent muddiness and allow for better speech intelligibility. Design considerations for small rooms, such as conference rooms or classrooms, benefit from this range as they are often used for communication and presentations. When reverberation time is kept within this limit, it enhances the acoustic quality, making it conducive for conversation and auditory activities, while minimizing sound reflections that might create distractions or hinder understanding.