This term has multiple meanings. It can refer to something that is completely sealed off, particularly in a way that no air can enter or exit. It also has historical and mystical connotations, relating to the esoteric and alchemical teachings attributed to Hermes Trismegistus, which are often considered cryptic or obscure. Hermetic Noise generally refers to unwanted or unpleasant sounds, but it can also mean any kind of sound, disturbance, or interference. In a metaphorical sense, it can represent the presence of irrelevant or meaningless information. When combined, “hermetic noise” could suggest a concept of sealed or isolated sounds, perhaps indicating a type of sound or music that is intentionally obscure, cryptic, or enveloped in mystery. Alternatively, it could imply a cacophony that is contained or not meant to be heard by the outside world. The interpretation can vary depending on the context in which the phrase is used.