Dakhan
New member
Essendo dinamico varia in base alla colonna sonora e al volume generale quindi non ti posso dare valori precisi ma la riduzione del range dinamico e' quantificabile in alcuni db anche ai livelli minimi, secondo questa descrizione di Chris Kryiakakis di Audyssey si arriva anche a 17db di riduzione
Dynamic Volume is a technology that takes the edge off of sudden sonic transitions. Imagine you are watching an action movie late at night, and a scene begins with subdued conversation, then suddenly gunfire erupts. If you have kids sleeping, most of the time you find yourself rushing for the remote to turn down the volume. Dynamic Volume "looks ahead" and cuts 12-17db off of the volume, but does so very naturally and the effect is seamless. The "look ahead" is not so much as to cause sync issues, but does an amazing job of silencing sudden or loud passages.
Obviously, this is the perfect technology for watching TV. How often have been sitting in your theater watching Idol with your kids when the show cuts to a commercial. And the dreaded local Fox affiliate commercial - maybe a local car dealership - blasts you out of your chair? Dynamic Volume solves this problem. Chris showed a clip from the BCS Championship game earlier this year, and when Dynamic Volume was turned off, an annoying Verizon commercial blasted into the room during a timeout. With Dynamic Volume engaged, the commercial was still just as annoying, but the volume stayed consistent with the game - the commercial's volume was reduced by 20 db! An amazing and long overdue technology that even your parents can appreciate! You should expect to see this licensed to display manufacturers in the future, although Chris would not get specific. Dynamic Volume always includes Dynamic EQ, so you will find both in all of Denon's new AV receivers. The partnership between Denon and Audyssey continues to bear fruit that we all benefit from in our home theaters."
Qui una descrizione in inglese del Dolby volume (simile come approccio ma non identico):
http://www.dolby.com/uploadedFiles/Assets/US/Doc/Professional/dolby-volume-tv-techpaper.pdf
Una descrizione dei compressori di dinamica in generale:
http://en.wikipedia.org/wiki/Dynamic_range_compression
In ogni caso concordo con MauroHOP al 100%
