Dolby volume

Dolby volume: Everyone knows the situation: The feature film goes into the commercial break and it is much louder than the feature film - a marketing tactic to make viewers more aware of the advertised products. But sudden explosions after long, quiet dialogues also make many viewers reach for the remote control. Dolby is now remedying these problems with Dolby Volume.

Dolby Volume works on two levels: The "Volume Leveler" compares the current sound spectrum with the previous one. Dolby uses techniques from the professional sector, such as an "auditory scene analysis". This technique recognizes which tones need to be boosted and which don't. For example, Dolby Volume does not turn up a falling piano chord. The second level is the "Volume Modeler", which reacts to the fact that the human ear perceives highs and lows less well at low volumes. Old stereo amplifiers had the Loudness-Button.

But she ignored the actual volume and alienated the original Signal often to a mush. The Volume Modeler relies on the knowledge of data compression, which was developed with the invention of MP3 or Dolby Digital revealed: Sound data that is below the hearing threshold is simply omitted there. The Volume Modeler does the exact opposite: it raises the volume of sound components whose volume is below the hearing threshold Klang full and rich in detail even at low volume.

Unlike previous volume control solutions, Dolby Volume has no audible artifacts or side effects. So e.g. For example, the volume of quiet background noise between dialogue scenes is not increased or decreased as is the case with conventional compression technologies.

In addition to AV receivers, complete home cinema systems and stereo systems, Dolby Volume can also be integrated into televisions. Dolby Volume works with any input signal, analogue or digital, on any service (cable, satellite, terrestrial and IPTV) and for any program source. First AVReceiver and complete home cinema sets will be available in 2008.

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