The setup sort of reminds me of the overpriced Bose 3-2-1 system, which mimics surround sound using just two speakers and a sub, but unfortunately there’s little else to go on. The press release is sparse, as hyped-up marketing materials are wont to be, and not even a release date or pricing escapes its hazy grip. Maybe April. In Japan. Maybe.

What we do know is that this little box will make use of DTS Surround Sensation tech. Nothing more. [Press Release via CrunchGear]

We’re assuming you know some of the basics–like that 5.1 audio is five channels of audio positioned at centre, front right, front left, back right and back left, and then one subwoofer channel. And that a higher bit rate means more audio data is coming through, which, generally, means it’s higher quality and gonna sound better, since you’re losing less of the original studio sound.

The building block of digital audio is “pulse code modulation”—an old technology used for CDs and everything since. It can be rendered in several resolutions, from 16-bit stuff on CD to 24-bit on newer DVD and higher-res formats. It can also have varying frequency ranges, typically from 44.1KHz to 96KHz. Without going into more detail, you just need to know that PCM is bulky, and it is this PCM data that both DTS and Dolby work to encode into more manageable files. When audio tracks are decoded in a disc player, they are either sent out analogue via multichannel RCA outputs, or they become PCM tracks that any digital receiver can easily interpret.

We’re taking you through the major branded audio formats that you’ll run into if you’re dealing with a home theatre, or hell, a Blu-ray player.

First up: Dolby. There are basically three tiers of audio: Dolby TrueHD at the top, then Dolby Digital Plus, then good old Dolby Digital.

Dolby TrueHD is a lossless compression format that is bit-for-bit identical to the studio masters. It can handle a bit rate of up to 18 megabits per second, and support as many as 14 channels of audio, though you’re more likely to see it at 7.1. It’s actually optional in the Blu-ray spec, but it’s supported by the PS3 and most other new Blu-ray players. Some players decode the TrueHD internally, then stream out uncompressed PCM audio through HDMI, while others can send the TrueHD file itself out over HDMI in bitstream for the receiver to decode.

Dolby Digital Plus is the next step down. It still delivers 7.1 audio, but at a max bit rate of 3Mbps. It’s a more efficient codec than the original Dolby Digital, and is a mandatory minimum in the Blu-ray 1.1 spec. Dolby Digital Plus can be used for Bonus View picture-in-picture audio tracks on a Blu-ray disc, with the main audio track encoded as TrueHD.

Dolby Digital is the lowest rung, at 5.1 audio channels, running at 448Kbps on DVD (though a richer 640Kbps on Blu-ray, used, again for special features or supplement language tracks).

DTS’s offerings follow a similar tiered setup.

DTS-HD Master Audio is at the top. It’s a lossless format that is also bit-for-bit identical to the studio master. It supports a bitrate up to 24Mbps (though the average Blu-ray flick’s audio is only about 2-3Mbps, with 4-5Mbps spikes) and up to eight channels (like 7.1). (It too, is supported by the PS3.)

DTS High Resolution Audio is below that. It also supports eight channels at a constant bit rate of up to 6Mbps. It’s for situations where a studio doesn’t want to eat up disc space with a full lossless track (like bonus features or tracks), though DTS told us 95 percent of studios who use DTS use the full HD Master Audio.

DTS Digital Surround is down at the DVD end, with support for 5.1 channels and bandwidth up to 1.5Mbps, though post-2000 DVDs typically keep the track at 768Kbps to save disc space.

You may have heard a few things about Dolby ProLogic II or IIx, or maybe DTS Neo:6. These aren’t digital codecs, so much as they are “matrix” programs that take stereo tracks and route it to to the different speakers in a surround system. A vestige from pre-digital days, people used to master stereo tracks deliberately for ProLogic—try watching The Simpsons opening credits through your receiver with ProLogic turned on.

Dolby and DTS also have virtual surround technologies that do the opposite of matrixing: They take 5.1 tracks and perform hocus pocus on them so that they sound surround-y, but play through stereo speakers or headphones. It’s more subjective, and has a whole different science to it, so maybe we’ll save it for another time.

That, in a nutshell, is what all of those Dolby and DTS logos on the back your Blu-ray player, A/V receiver or movie box means. If you want to know how “golden-eared” audiophiles feel about the highest qualities, and how well they fare against uncompressed PCM, check out this informative piece from Home Entertainment Magazine. As a rule, DTS HD Master Audio or Dolby TrueHD will kick arse, but unless you have a $50,000 sound system, you may not be able to tell the difference between the middle and top tiers anyway.

Something we missed, or you still wanna know? Send any questions about Dolby, DTS, Dubbly, Dobby or anything else to tips@gizmodo.com, with “Giz Explains” in the subject line.

The upgrade also contains new PlayStation store functionality—Japan preview shots in gallery, plus SCEA’s details after the jump.

Sony Computer Entertainment America (SCEA) today announced that the next system software update for PLAYSTATION®3 (PS3™) system, slated for release next week, will add DTS-HD Master Audio™ and DTS-HD High Resolution Audio, enabling consumers to enjoy Blu-ray movies with studio-quality, high-definition audio. The technologies, from DTS, Inc. (NASDAQ: DTSI), provide PS3 users with the complete high-definition Blu-ray movie experience, matching the format’s crisp visuals with rich, lifelike sound. In addition to the new audio capabilities, the free system software update (v. 2.30) will allow PS3 owners to access the revamped PLAYSTATION®Store, as previously announced.

DTS-HD Master Audio brings Blu-ray movies on PS3 to life, delivering everything from explosive sound effects to intricate orchestral scores with pure, high-quality audio that is bit-for-bit identical to the original studio master. DTS-HD Master Audio has the capacity to deliver audio at the incredibly high variable rate of 24.5 mega-bits per second (Mbps) on Blu-ray disc, a rate significantly higher than standard DVDs. DTS-HD Master Audio also offers 7.1 audio channels at 96k sampling frequency/24 bit depths. More than 100 Blu-ray movies and concert videos featuring premium DTS-HD Master Audio soundtracks are available.

Additionally, the DTS-HD High Resolution Audio codec allows content creators to deliver uncompromised, high-definition audio on Blu-ray, while requiring less disc space than DTS-HD Master Audio. DTS-HD High Resolution Audio streams audio at a high constant bit rate of 6.0 Mbps on Blu-ray discs, and is also capable of up to 7.1 audio channels at 96k sampling frequency/24 bit depth resolution, thereby producing outstanding sound quality.

Beyond enhancing PS3’s audio capabilities, installing the latest system software update will also enable users to seamlessly access the new, more dynamic interface and enhanced navigation of the PLAYSTATION Store. As part of a revamp, the PLAYSTATION Store will transition from an integrated online storefront to an application living natively on PS3, enabling customers to more easily and quickly locate and purchase games, and download demos, game videos, Blu-ray movie trailers and other game-related content for PS3.