Podcast
Questions and Answers
What determines the loudness of direct sound waves to a listener?
What determines the loudness of direct sound waves to a listener?
- The frequency of the sound wave and the listener's hearing ability
- The number of reflections the sound wave undergoes and the material of the surface
- The speed of sound and the type of surface it strikes
- The loudness of the original source and the listener distance from the source (correct)
Why is the loudness of reflected sound always less than direct sound?
Why is the loudness of reflected sound always less than direct sound?
- Reflected sound tends to change direction multiple times
- Reflected sound is absorbed completely by surfaces it strikes
- Reflected sound has a higher frequency than direct sound
- Reflected sound travels further and loses energy at each reflection (correct)
What effect do multiple reflections of sound waves have on acoustics?
What effect do multiple reflections of sound waves have on acoustics?
- No effect on loudness, only on the direction of sound waves
- Increase in loudness and introduction of reverberation (correct)
- Complete absorption of sound waves in the space
- Decrease in loudness and reduction in reverberation
What happens to the combination of direct and reflected sound in terms of loudness?
What happens to the combination of direct and reflected sound in terms of loudness?
How do multiple reflections impact the reverberation in an enclosed space?
How do multiple reflections impact the reverberation in an enclosed space?
What happens to an echo in a highly reverberant room?
What happens to an echo in a highly reverberant room?
What is the primary factor causing an increase in loudness due to multiple reflections?
What is the primary factor causing an increase in loudness due to multiple reflections?
How can an echo be easily distinguished in a room with low reverberation time?
How can an echo be easily distinguished in a room with low reverberation time?
Which type of interior building surfaces absorb the least amount of sound?
Which type of interior building surfaces absorb the least amount of sound?
What is considered a perfect sound absorber?
What is considered a perfect sound absorber?
How are absorption coefficients typically measured?
How are absorption coefficients typically measured?
What is a sabin in relation to sound absorption?
What is a sabin in relation to sound absorption?
What is the main factor that influences the loudness of reflected sound in a room?
What is the main factor that influences the loudness of reflected sound in a room?
What term is used to describe the prolongation of sound caused by reflected waves bouncing between room surfaces?
What term is used to describe the prolongation of sound caused by reflected waves bouncing between room surfaces?
At what point does speech become increasingly difficult to understand due to excessive reverberation time?
At what point does speech become increasingly difficult to understand due to excessive reverberation time?
What is the ideal reverberation time for classrooms or lecture spaces according to the text?
What is the ideal reverberation time for classrooms or lecture spaces according to the text?
In what scenario does speech intelligibility improve, according to the text?
In what scenario does speech intelligibility improve, according to the text?
What is defined as a distinct repetition of direct sound?
What is defined as a distinct repetition of direct sound?
