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How Dolby Volume Works
The Preferred Volume, All the Time
Dolby® Volume technology maintains system playback volume at the same preferred level across all sources, from progressive programming and channel selections on a TV set or set-top box or between connected sources such as CD and DVD players, audio- or videocassette players, and portable digital media players or other playback devices. Dolby Volume technology lets the listener set the playback volume once and not have to touch the volume control again. In addition, Dolby Volume lets the listener control a program’s dynamic range. For example, with the volume turned down for late-night viewing, dynamic range can be adjusted so that dialogue remains clear, and loud effects or wide dynamic music passages retain their impact and timbre without waking up the family.
Vibrant Quality, Loud or Soft
Dolby Volume also compensates for the ear's changing sensitivity as the volume is turned up or down. It properly balances low, middle, and high frequencies to maintain all the nuances and impact of the program material regardless of playback volume level. At high or low levels, Dolby Volume guarantees a listening experience that includes all of the dynamics of the original mix.
Dolby Volume measures, analyzes, and maintains volume levels based on how people perceive sound. It examines a variety of audio parameters to maintain consistent playback levels whether switching between channels or between multiple source inputs. A sophisticated combination of spectral- and time-based loudness analysis enables it to quickly and properly correct level differences without creating compression artifacts or undesirable pumping in the audio signal.
Consistent Listening Experience
Maintaining level while compensating for the ear’s sensitivity guarantees audibility and enjoyment, all the time.
