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Does Dolby Headphone virtualize 7.1 or 5.1 ?

post #1 of 15
Thread Starter 

Let's say that a game outputs 7.1 channels, can we use dolby Headphone to virtualize 7.1 ? 

 

 

I read everywhere that Dolby Headphone creates the illusion of a room where you are in the centre and there are 5 speakers around you... which means it only virtualizes 5.1 to 5.1 ? and i guess it virtualizes 7.1 to 5.1 ? but not 7.1 to 7.1 ?


Edited by Sam21 - 12/12/13 at 1:58pm
post #2 of 15

Can virtualize both 5.1 and 7.1. It works well for gaming and movies. Not for music, though.

post #3 of 15
Thread Starter 
Quote:
Originally Posted by davidsh View Post
 

Can virtualize both 5.1 and 7.1. It works well for gaming and movies. Not for music, though.

thank you for your reply, but can you confirm these two sentences....?

 

when the source is 5.1 , dolby Headphone takes 5.1 signals and turns them into virtual 5.1(the sensation that 5 Speakers are around you) which is 2 channels and can be heard through any pair of stereo Headphones.

 

when the source is 7.1 , dolby Headphone takes 7.1 signals and turns them into virtual 7.1(the sensation that 7 Speakers are around you) which is 2 channels and can be heard through any pair of stereo Headphones.


Edited by Sam21 - 12/14/13 at 4:41pm
post #4 of 15
Confirmed :-)
How good you find the effect to work is individual, though
post #5 of 15
Thread Starter 
Quote:
Originally Posted by davidsh View Post

Confirmed :-)
How good you find the effect to work is individual, though

But why is that when you want to choose DH modes like DH1 DH2 or DH3, the picture for each mode only shows 5 speakers ? even if the source is 7.1 ?

 

and also, according to Dolby's website : 

 

"

Dolby® Headphone is a revolutionary signal processing technology that delivers up to 7.1-channel surround sound over any pair of headphones for richer, more spacious headphone audio.

Dolby Headphone accurately creates the sensation of up to five loudspeakers in a room by using powerful digital signal processing (DSP) technology. The result is a more vibrant and natural listening experience"

 

It says that it creates the sensation of 5 speakers even if it is virtual 7.1? ... Kinda confused....


Edited by Sam21 - 12/15/13 at 2:18pm
post #6 of 15
Not sure whether Dolby actually sounds better/different as 7.1 vs 5.1, though I'd suppose. Does it even matter?
post #7 of 15
Thread Starter 
Quote:
Originally Posted by davidsh View Post

Not sure whether Dolby actually sounds better/different as 7.1 vs 5.1, though I'd suppose. Does it even matter?

Well, I don't know about virtual 7.1 vs virtual 5.1 but real 7.1 vs real 5.1 makes a lot of difference.

post #8 of 15
Quote:
Originally Posted by Sam21 View Post
 

thank you for your reply, but can you confirm these two sentences....?

 

when the source is 5.1 , dolby Headphone takes 5.1 signals and turns them into virtual 5.1(the sensation that 5 Speakers are around you) which is 2 channels and can be heard through any pair of stereo Headphones.

 

when the source is 7.1 , dolby Headphone takes 7.1 signals and turns them into virtual 7.1(the sensation that 7 Speakers are around you) which is 2 channels and can be heard through any pair of stereo Headphones.

This is correct.

 

what dolby headphone does is, if it receives a digital 5.1 or 7.1 audio signal, it processes the sound to match the directional cues of each channel. 

 

It works for music too, if the music is 5.1 (yes those exist).

post #9 of 15
Yeah, I have dsotm in 5.1 now that you mention it. Will try that later.
If OP really wants to dig further in this he should pm namelessPFG
post #10 of 15

Remember to chose the right settings. If you Game has a 7.1 output, you need 8 Channels. So the Soundcard knows to take 8 Channels (7.1), and convert them into stereo via Dolbi Headphone.

If you use 5.1, then change to 8 Channels, and also turn Dolbi Headphone on.

 

If you have a Stereo Output ("Stereo/Headphone" in Games, or Musik), turn Dolbi Headphone off, because it wont work.

 

Dolbi Headphone is a HRTF technology, which converts a Surround Channel Audio into Stereo (for headphones/headsets), while keeping the directions of the sounds.

 

(just saying, because i saw alot using Dolbi Headphone in Stereo Mode, which doesnt improve the surround)

post #11 of 15
Thread Starter 

I guess I should contact Dolby about the 5 Speakers thingy....it still doesn't make sense, on their site it says that it can create up to 7.1 virtual surround, yet in the same article it says it creates the sensation of 5 speakers...kinda contradictory...

post #12 of 15

Does someone finally know how it works?

In PowerDVD and Xonar DG without Virtual Speaker Shifter it just virtualizes 5.1 although I have a 7.1 source.

It seems Dolby Headphone can also virtualize 7.1, I'm referring to this:

http://www.head-fi.org/t/693793/ps4-linear-pcm-night-and-day-difference-with-dolby-headphone

and to this

http://xim4.com/community/index.php?topic=31304.135

post #13 of 15
My sound card has the option of 6 and 8 channels
post #14 of 15

2,4,6,8, channels available as input on my Xonar DGX with Dolby (advertises 5.1 only), though all my games output 5.1. Contact Dolby, I'd love to hear what they say! Post the reply here when it comes. :beerchug:

post #15 of 15
Quote:
Originally Posted by davidsh View Post

Not sure whether Dolby actually sounds better/different as 7.1 vs 5.1, though I'd suppose. Does it even matter?

 

I. It may also depend on the headphone. I was using my IEM since it drowns out the two AF120 Performance fans on my case (plus the Antec 620 on the exhaust), but there is hardly any difference at any setting. When I picked up an old set of Creative headphones (my cousin lost the USB soundcard that came with it), it was easier to appreciate DH. However, when it comes to 5.1 vs 7.1, as long as your game has it, I tend to use the latter.

 

II. It also partly depends on the game, aside from having the correct sound programme. On TW (Shogun II and Rome II) if I'm completely zoomed out on the campaign map and I click on any army/agent, the vocal response sounds correspondingly faint, but clear enough. On the battle sequences, on a practical level it doesn't help as much as with speakers since it doesn't really take it outside of my head, however in terms of the best compromise for immersion. On single player mode, I usually give out orders, then switch to 1st person view especially on the cavalry. If I'm on 1st person view for the infantry general/supreme commander (not the same with Greek armies as it works as one Strategos on one flank and one Lieutenant on the opposite flank) I can still hear for example cavalry coming in from either side, but note that depending on what's happening it can be easily drowned out by other noises and get lost, especially when firearms and cannons are involved (Fall of the Samurai - Boshin War).

 

III. On FPS games 7.1 is still better but not by much. For the most part, headphone audio is still hampered by the position of the drivers, so it makes the sound softer rather than, say, making gunfire from 25ft ahead actually sound like it's 25ft ahead. It does however help when the sound is that soft - I find 5.1 not much softer on all directions (ie stil too forward) compared to 2.0, and everything still sounds like it's all over the place. Basically as long as the mind can be reoriented to recognize soft and somewhat positional audio for positional cues over actual imaging done with a true surround sound speaker system, it can help.

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