Originally Posted by JDCaduceus
Thanks Bob! I actually was able to get the video out working and set up my sources correctly along with speaker distances etc. My only problem now seems to be the following:
1. I would like some help with what to select on the audio processing. Most of my audio comes over HDMI from my HTPC and is either DTS, DTS HD or True HD; sometimes AC3, DD5. I would like to be able to have the D2v to recognize and play DTS-HD and True-HD audio but am confused as to what setting to use - PLX? DD5? Neo6? DTS ES? Any of the THX? Some guidance would be appreciated - wish D2v would just auto select based on source audio - is there a way to do that?
2. I selected to have 2 subs in my Movie configuration but was wondering how to check this and if this was ok for me to use when testing with ARC?
3. I am wondering - I have things working well now - sound and picture is good (just need to get some preset processing in #1
figured out), but if it sounds good is ARC necessary? Does ARC make a difference?
ARC makes a huge difference. Definitely plan on doing an ARC setup.
The 1 vs 2 Subs setting in the D2v is only used to alter how the Subwoofer volume trim setting is implemented (Setup > Level Calibration). When using ARC it is mandatory that you set that to 1 Sub even though you have more than one. (The Subwoofer volume trim ARC Uploads into the D2v is calculated assuming that 1 Sub is set.)
You can test that both Subs are functioning by playing the Subwoofer test tone (Setup > Level Calibration). Note that there is a separate setting which lets you change whether the second Sub output of the XLR set is used for wiring a second Sub or for Zone 2 functionality. If you are using the XLR outputs, and only get Sub test tones from one Sub, check that setting (Setup > ADC).
There is also only one distance setting for the Subwoofer. Use the average of the distances for your two Subs. NOTE: Phase is a function of distance, so you must set all your speaker distances before adjusting Sub Phase (next paragraph).
Since you have more than one Sub, you need to adjust Phase for each of them *BEFORE* your run your ARC setup. The Phase setting on each Sub will alter how they interact with each other, and ARC hears them playing together so that needs to be set before you do ARC Measurement. Power one Sub at a time and adjust the Phase setting ON EACH SUB ITSELF to maximize bass when playing content through the LF/RF speakers in Stereo Audio Mode. The hiss between FM radio stations is something you can use for this. Bass is only a small portion of that hiss so listen carefully as you adjust Phase. Again, do this separately for each Sub, then power them both up again before doing your ARC Measurement. (Since you don't have an ARC solution set up yet, you can set a Crossover of 80Hz while testing Phase to make sure bass in the LF/RF content gets steered to the Subwoofer.)
It is also good to get the Sub volumes into the right ballpark before you run ARC (and for that matter, before you adjust Phase, as it makes it easier to hear). Zero all the lines in Setup > Level Calibration, then use the Test Level line (test tone will come from LF speaker) and adjust that to yield 75dB SPL measured with a sound pressure level meter at your ARC mic #1
position (center seating). Everyone uses the inexpensive, digital readout SPL meter sold by Radio Shack. Point that straight up, held at arm's length, at seated ear height, and set to "Slow" response and "C" weighting.
Leave the rest of the Level Calibration lines at 0dB. Go down to either Subwoofer line and, leaving that at 0dB, adjust the volume using the volume knob on the Sub itself. Since you have 2 subs, power one at a time for this and adjust its volume knob to yield 72dB SPL (not 75). When both Subs are producing 72dB SPL, they will combine to yield roughly 75dB SPL. Ballpark settings are fine for this, as ARC will do all the fine tuning of volume levels.
With the Test Level line and the Sub volume knobs set, and with speaker distances and Sub Phase dialed in, you can now do your ARC Measurement pass. NOTE: You only have to do these preliminaries once (presuming you don't shift speakers around), as what you set up here will still be in place for any subsequent ARC runs you do.
The Audio Surround Modes have to do with how fewer content channels are expanded to produce more speakers of output. There are several different algorithms offered to do that. But the first thing to note is that if the content you are playing already has the same (or more) channels than your speaker configuration, then there's nothing for a Surround Mode to do -- so it won't be offered.
If you do want to expand content to more speakers (e.g., stereo content played in 5.1 speakers), then the choice of setting is ENTIRELY PERSONAL PREFERENCE. You can adjust this on-the-fly using the Mode button on the remote while playing real content. (When using the Mode button, only the choices that actually DO something -- given the content you are playing and your speaker configuration -- will be offered.) When you finally settle on which Surround Modes you prefer, you can set them as defaults in Setup > Mode Presets for each Source. You can still alter them on the fly to double-check if your defaults are really to your taste.
I recommend you leave THX post processing turned OFF after you get ARC set up.