Dolby Pro Logic (Logitech G35 Headphones)

onelifecrisis · 01-04-11, 07:15 PM

So I've been playing with my Christmas present, Logitech G35 Headphones.

These are pretty cool actually. They plug in via USB and the drivers create a sort of virtual (software) 7.1 channel sound card (I've disabled my MB's onboard sound card in the BIOS and uninstalled its drivers from Windows). The headphones don't actually have multiple physical speakers in them (I've heard that some do, but not these); rather, they simulate a 7.1 speaker setup. Sweet!

Except that there's a physical button on the headphones to turn Dolby Pro Logic on or off. Huh?

I thought Dolby Pro Logic was a way of squashing multiple sound channels into a stereo recording and then unsquashing the recording back to multiple channels on playback? Is that right? And if so, doesn't that mean that Dolby Pro Logic is only useful for listening to media that is encoded in Dolby Pro Logic format (i.e. not videogames)? Why do these "gamer" headphones have Dolby Pro Logic on them at all? And why does it have to be turned ON in order for the sound to work properly in certain games (e.g. F.E.A.R. 2)?

*confused*

01-04-11, 07:15 PM	#1
onelifecrisis Maverick Modder Join Date: Aug 2007 Location: England Posts: 3,895 Downloads: 65 Uploads: 3	Dolby Pro Logic (Logitech G35 Headphones) So I've been playing with my Christmas present, Logitech G35 Headphones. These are pretty cool actually. They plug in via USB and the drivers create a sort of virtual (software) 7.1 channel sound card (I've disabled my MB's onboard sound card in the BIOS and uninstalled its drivers from Windows). The headphones don't actually have multiple physical speakers in them (I've heard that some do, but not these); rather, they simulate a 7.1 speaker setup. Sweet! Except that there's a physical button on the headphones to turn Dolby Pro Logic on or off. Huh? I thought Dolby Pro Logic was a way of squashing multiple sound channels into a stereo recording and then unsquashing the recording back to multiple channels on playback? Is that right? And if so, doesn't that mean that Dolby Pro Logic is only useful for listening to media that is encoded in Dolby Pro Logic format (i.e. not videogames)? Why do these "gamer" headphones have Dolby Pro Logic on them at all? And why does it have to be turned ON in order for the sound to work properly in certain games (e.g. F.E.A.R. 2)? confused __________________ Freedom of speech - priceless. For everything else there's Mastercard.