Originally posted by abramsky
On the SA3100HD setup menu, there is an item called Audio Range and the choices are Wide, Normal and Narrow. Does anyone know what this setting sets and the reason for making any of the choices?
On my setup, I am using both the audio right/left for my TIVO and VCR and the Digital Coax out for my Home Theater receiver.
Sometime's I have a hard time understanding soft dialog, sounds like garbled mumbling and can't decide if its the program, the setup or I'm just going deaf.
The Audio Range choices are for the Dolby Digital output signals and they refer to the digital "Dynamic Range". A Wide Dynamic Range will render audio that will go from the faintest audio level of a whisper at an extremely low level to a thundering boom at ear-shattering levels. This gives great impact to action movies but calls for a good audio setup to properly be able to hear normal dialog without blasting the speakers during loud scenes.
Narrow Dynamic range, keeps the lower volumes at a higher level, while muting the higher level sounds to a lower level. This way, whispered dialog is not that much more quiet than an explosion and all sound levels are "Narrowed" to a certain level.
I don't know the real numbers, but think of it something like this at a 33% Standard Volume Level for the same scene-
Using Narrow Dynamic range:
A whisper is 45db - An explosion is 85db = "Narrow Range" of audio levels
Using Wide Dynamic Range:
A whisper is 15db - An explosion is 105db = Wide Range" of audio levels