Typical scenarios within this site’s subject: questions to ask, materials to prepare and points that can be examined.
Typical scenarios
If an intermittent hum appears after equipment repairs, the timing alone does not explain its source. The sound may vary with the system’s operating mode and conditions inside the room.
Typical scenarios
If footsteps sound different after a neighbouring apartment’s floor covering is replaced, the floor construction and observation conditions need comparison. A noise complaint does not identify the changed layer or explain stronger transmission. A phone recording can describe an episode but cannot replace comparable measurements.
