Dolby Prologic II (5.1 Surround Sound)

[aj_hix36]

I have been digging around everywhere trying to figure how to get 5.1 audio to properly work.

In my search I discovered this:

SPU2-X:
5.1 support is back!
Currently for XAudio2 only, and it's not doing much (Simple copy of the stereo
source to the other speakers).
Gigaherz is already working on a nice, semi - prologic II upmixer though

The log message from here.

Any updates on this and is there still progress being made? Thanks!!

[Bositman]

As far as I know surround sound with SPU2-X works with games that support it. But you need a sound card that has a decoder, so Audigy 2 and up I guess

[rama]

Right, games that support Dolby Prologic II sound are supported via SPU2-X's stereo output.
(The other SPU2 plugins don't do the phase right, so it doesn't work.)

As bositman said, you'll have to feed that stereo source to a Dolby Prologic II decoder.
From there it goes to your 6 speakers.

The internal "upmix" option in SPU2-X does not do that yet, you need a working decoder.

[aj_hix36]

Well I have sound blaster x-fi titanium that should be able to decode
it right?
But I only get the same thing out of five speakers, just the stereo repeated. Do I choose stereo then and it will work?

[rama]

Sorry, I don't know how you need to configure your setup so it actually decodes PL2
(and not just upmixes the stereo source, using some proprietary algorithm).

The way I got it working is by feeding my AV with the stereo source, then select any of the PL2 decoding modes in it.

[aj_hix36]

In the configuration for SPU2-X, do you check the enable audio expansion box, or do you leave it unchecked?

[Bositman]

It should be unchecked. That expands 2.0 audio to 5.1 but you're trying to have 5.1 audio to begin with.

[Isidore]

Have you got 5.1 discrete surround sound to work aj_hix36?

I also own a Creative's X-Fi Titanium soundcard and 5.1 speakers
but cannot seem to get proper 5.1 sound to work with PS2 games on PCSX2.

I am using one of the latest PCSX2 0.9.7 SVN(r2828) with sound plugin SPU2-X r2789.

If anyone else has had experience with 5.1 sound on PCSX2 please reply =]

[rama]

Discrete isn't supported, only Pro Logic II is (takes a stereo source and expands it to 5.1, using the surround information encoded in the stereo signal).

[Torch]

The Titanium series X-Fi cards cannot decode Pro Logic. Only the older PCI based ones like the XtremeMusic could upmix Pro Logic if the source was stereo and your speaker setup was 5.1/7.1. The new cards only have CMSS3D upmix which works based on frequency splitting, and its meant for upmixing plain stereo audio, not an encoded one like Pro Logic.