Pop Quiz: December 2006
Test Your Knowledge of Outdoor Acoustics
1. FALSE. An anechoic chamber produces nearly the same effect. However, in most indoor spaces, the presence of sound reflections from surfaces or reverberation will add to the total SPL, thus resulting in less measured attenuation than the inverse square law will predict.
2. FALSE. Attenuation is actually greater at lower relative humidity levels.
3. FALSE. The Doppler Effect may be more commonly heard outdoors because it requires either the source or listener to travel a significant distance.
4. TRUE. The higher the temperature, the faster sound will travel.