SierraMadre
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Whether the G6 is rendering virtual surround sound or not does not revolve around Dolby Digital per se. Rather Dolby Digital 5.1 is merely the only licensed encoded surround format it can decode for conversion into multichannel virtual surround sound. This is important for the current generation of consoles as they can only output multichannel surround via HDMI or optical. Unlike PC, they can't output multichannel PCM surround via USB. Optical is limited to bitstreaming 5.1 Dolby Digital and DTS 5.1. Thus, for console, an optical connection is the only way to get any form of discrete multichannel surround to the G6. The G6 can then decode this Dolby Digital (but not DTS as it can't decode that) and convert it into virtual surround sound via its SBX algorithm.I just recently bought a Soundblaster G6 and I'm a bit confused as to whether or not it's actually set up properly. I'm using it on my PC with SBX turned on and 7.1 enabled in the Creative settings, but the Dolby light never comes on. In Resident Evil 2, I've tried using all of the different options (Dolby Atmos, headphones, TV, 7.1 surround sound) but I never get any indication that it's actually giving me proper virtual surround. Am I just out of luck if the game doesn't give me a proper Dolby signal?
PCs on the other hand can send multichannel PCM over USB provided they have a capable sound card or motherboard soundchip. Your G6 acts as an external sound card and supports multichannel PCM input of upto 7.1 over usb and Creative's SBX solution is accordingly capable of processing multichannel PCM of upto 7.1 channels and converting it into virtual surround. The audio of the vast majority of PC games is output in PCM. The reason why the Dolby light is not coming on for you is because your G6 is not being fed Dolby Digital, it is being fed PCM, which is as it should be.
Engage the SBX button, this turns on any SBX features that your G6's current active SBX profile has engaged, so check your profile in the Sound Blaster control app to see that you have the virtual surround dial engaged and at a level you want it. Note that many of the various packaged-in / supplied presets/profiles have surround off or at very low levels (e.g. 10/100).
Also, ensure that if a game's audio options have a true / discrete / non-virtual surround option, that that is turned *on* (SBX VSS's raison d'etre is to take discrete multichannel signals intended for speakers and convert them into vss). If there is no such option, don't worry. If on the other hand, there is a *virtual* surround option, or a 'headphones' option, then leave it *off* if you want SBX VSS or turn it on and leave SBX off, otherwise you would be stacking two different virtual surround solutions.
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