I have two heat pumps directly outside my house and they are noisy so I am considering the viability of using a sound barrier to block the sound. The acoustic barrier itself will definitely absorb and eliminate the sound in three directions, but the question is whether the sound will be able to go around from the open side and get into the house. Here is the basic set up:
The heat pumps are shown in blue. The proposed acoustic barrier is shown in red.
Will sound be able to go around the edges of the barrier and get back into the house or will it radiate outwards and not come back into the house?