Dolby to Turn Volume Down on Loud Commercials
We can all relate to having been bombarded with an exceptionally loud commercial (or three) while calmly watching television at an otherwise normal volume. Dolby hopes to remedy that with a new technology that keeps volume levels more or less the same accross TV channels, programs, and commercials.
Dolby says that the goal of Dolby Volume's aim is to deliver consistent volume levels by modeling how "humans perceive audio" to eliminate variable loudness in the audio stream. Dolby claims that the system does this automatically without any type of user intervention (aside from the initial setup).