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When it comes to volume leveling solutions, the choice is clear. Only Dolby® Volume eliminates volume fluctuations while delivering a superior listening experience at any setting.

Widest adoption in premier consumer electronics

Number one choice for advanced AVRs

Controls volume without compromising sound clarity

Most accurate volume leveling solution

Dolby Volume is an advanced digital signal processing technology that provides home viewers with a consistent playback volume level across all sources and content, and also ensures a reference-quality listening experience at any volume level.

The technologies behind Dolby Volume, such as loudness-domain signal processing and auditory scene analysis, use advanced models of human hearing based on psychoacoustics, the science of human hearing. This makes it possible to correct source and content level differences without undesirable artifacts, such as pumping and breathing, introduced by previous compression and expansion techniques.

Dolby Volume also actively balances low, middle, and high frequencies in each channel to compensate for the ear’s changing sensitivity as the playback level is raised or lowered. As a result, the nuances and impact of the original mix are maintained even at low playback levels.

When incorporated in products such as digital televisions, audio/video receivers, home-theater-in-a-box systems, and STBs, Dolby Volume enhances the entertainment experience by delivering unique listening consistency and listener satisfaction.

Why Dolby

In today’s increasingly cost-conscious and competitive home entertainment marketplace, consumer electronics manufacturers are more in need than ever of new technologies to distinguish their products and offer consumers genuinely useful solutions. Dolby Volume is just such a solution for TV sets, STBs, audio/video receivers, and home-theater-in-a box systems.

Dolby Volume eliminates a major complaint of home viewers: the need to constantly adjust the volume as they change channels, content, and program sources. It also takes care of a more subtle problem: the loss of richness and details, such as surround effects, at normal home playback levels compared to the high levels used in studios where content is created.

Based on years of research into the science of psychoacoustics, Dolby Volume lets viewers set and forget their volume controls, and enjoy full, accurate reproduction at even low playback levels. It offers a particularly user-friendly solution for TV set and home theater equipment manufacturers striving to set their products apart. It also features the Dolby brand, widely trusted and recognized as a key to the best in audio quality.

Figures 1, 2, and 3 show examples of Dolby® Volume’s operation. The degree of loudness equalization applied is determined by the volume control setting on the TV set or playback system, or—in the case of surround sound systems equipped with automatic speaker balancing—the actual playback sound pressure level.

Dolby Volume supports stereo or multichannel audio at up to 192 kHz/24 bits. It is implemented in processors available from a variety of IC suppliers to product manufacturers licensed by Dolby.

 

Dolby Volume Specs Figure 1


 

Dolby Volume Specs Figure 2


 

Dolby Volume Specs Figure 3

Dolby Volume (STB/TV)

Dolby Volume is an advanced digital signal processing technology that provides home viewers with a consistent playback volume level across all sources and content, and also ensures a reference-quality listening experience at any volume level.



 
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