Print 23 comment(s) - last by SunAngel.. on Apr 24 at 5:55 AM

High Definition audio codecs with support for DRM protected HD content playback

HKEPC reports Realtek has been showing off its three newest high definition audio codecs at the Intel Developer Forum in Taiwan. The new codecs dubbed ALC885, ALC888 and ALC888 Telecom were initially announced March 10th but no working samples were shown at the time. Realtek was demonstrating working samples at the show, though it appears the samples are reference/development boards and not actual products. Nonetheless, the three high definition audio codecs sport a pretty impressive spec sheet.

At the top of the spectrum is the premium ALC885 high definition audio codec which joins Realtek’s previous upper-end ALC882. New features of the ALC885 include support for a digital microphone, an improved ADC that supports 192 kHz sampling rates and a higher DAC signal-to-noise ratio of 106 dB versus the ALC882’s 101 dB. The biggest feature addition is support for DRM protected content playback. Supported protected content include DVD-Audio, Blu-ray, and/or HD-DVD discs. Copy protected content will be capable of being played back at 24-bit resolution and 96 kHz sampling rates.

Existing features of the ALC882 are also integrated into the ALC885. This includes 10 DAC’s for support of 7.1 channel audio as well as a dedicated headphone output, 6 ADC’s for your various microphone, line, and CD inputs, and DAC sampling rates of 44.1/48/96/192 kHz.

The second new codec is the Realtek ALC888 with similar specifications to the previous ALC883 high definition audio codec. Digital microphone support seems to be the only new feature the ALC888 has over the ALC883. Aside from the digital microphone support the ALC888 supports the same specifications as the ALC883.

Lastly is the ALC888 Telecom which is essentially the ALC888 with additional support for VoIP services. VoIP support integrated into the ALC888 Telecom allows Skype or other VoIP service users to connect a standard telephone to their computer and make calls, essentially integrating a VoIP phone adapter like the ones used by Vonage into your PC.

The ALC885 and ALC888 are both pin compatible with existing ALC882, ALC883 and other 48-pin LQFP packaged high definition audio codecs. The ALC888 Telecom however, is not pin-compatible with existing high definition audio equipped motherboards and systems and uses its own 64-pin LQFP packaging.

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RE: DRM is unconstitutional
By tonjohn on 4/20/2006 2:20:26 PM , Rating: 2
Shhh!! (I'm trying to start a revolution here.. don't ruin it)

Seriously though, DRM is crap and it needs to stop.

RE: DRM is unconstitutional
By y2chuck on 4/20/2006 2:23:52 PM , Rating: 2
totally agree. I don't buy anything with DRM and never will.

RE: DRM is unconstitutional
By drphilngood on 4/21/2006 5:51:19 AM , Rating: 2
No DRM for me, either! We all need to vote with our wallets and kill this insidious evil before it can breed more of its ilk.

RE: DRM is unconstitutional
By horsecharles on 4/21/2006 6:57:47 PM , Rating: 2
Yah, otherwise soon, wives will demand their husbands'penises be DRM-implanted. Besides disabling any illicit consummation, wives will be able to go a step further: remotely, through any wireless appliance, even a cell phone, walkie-talkie, shortband radio, etc. they will be able to auto-disable at will even harmless erections, such as when the wind picks up, bladder is full, etc. Conversely, they would be able to for instance re-program the implanted chip to cause massive excitement during individual situation types of their choosing-- at a ballgame with a friend, in the health club sauna, when exchanging handshakes with any male person....
Ha, ha-- women will soon rule the world!

RE: DRM is unconstitutional
By michael2k on 4/24/2006 1:06:32 AM , Rating: 2
Like CSS? This means you own no DVDs or DVD players right?

Like Macrovision (which is a content protection system even prior to DRM)? This means you never bought a VHS tape or tape deck with Macrovision?

RE: DRM is unconstitutional
By SunAngel on 4/24/2006 5:55:05 AM , Rating: 1
I noticed none of the above replied to your comment. That shut them up real fast.

I actually don't find drm stuff that bad. Sure, I am stuck playing the item only on the computer I purchased it and I can not transcode it, but I do have the ability of connecting the audio/video out to another device such as a stereo or tv and I am listening or watching on an alternative device. It really unconvienient but I have the alternative nonetheless.

The worst thing about drm is it the result of a third party trying to sell something. For example, CinemanNow does nothing we can't do already (i.e. take a dvd and transcode into wmv...well we can't transcode directly to wmv but we can get there eventually). So in order to sell online they must use protection. I always thought this business model has potential but currently the drm is too restrictive.

"So, I think the same thing of the music industry. They can't say that they're losing money, you know what I'm saying. They just probably don't have the same surplus that they had." -- Wu-Tang Clan founder RZA

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