Do interference effects occur for sound waves?

This is a form of constructive interference. If two rarefactions (two low-pressure disturbances) from two different sound waves meet up at the same location, then the net effect is that that particular location will experience an even lower pressure. This is also an example of constructive interference. read more

Yes,interference effect occurs for sound waves despite of the fact that sound waves are longitudinal waves.When two sound waves of same frequency and same amplitude in the same direction superpose then the interference of sound waves occurs. read more