Dropping Science: The Dolby Atmos Pitch to Consumers

摘要

Until now, cinema sound designers have had to mix independent sounds together into channels for soundtrack creation. A discrete sound, such as a helicopter, has been assigned to an individual channel rather than precisely to where it would occur naturally in the scene. While a sound can move across channels, there's no height dimension. For example, you might hear the helicopter from a side channel and not above you. This approach limits your audio experience because it can't come close to matching the way you hear in real life, with sounds coming from every direction. Dolby Atmos is the first home theater system that is based not on channels but on audio objects. Any sound heard in a movie scene-a child yelling, a helicopter taking off, a car horn blaring-is an audio object. Filmmakers using Dolby Atmos can decide exactly where those sounds should originate and precisely where they move as the scene develops.