Realtek Shows off New High Definition Audio Codecs
Anh Tuan Huynh
April 20, 2006 10:43 AM
comment(s) - last by
High Definition audio codecs with support for DRM protected HD content playback
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.
This article is over a month old, voting and posting comments is disabled
RE: DRM is unconstitutional
4/24/2006 1:06:32 AM
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
4/24/2006 5:55:05 AM
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.
"Well, there may be a reason why they call them 'Mac' trucks! Windows machines will not be trucks." -- Microsoft CEO Steve Ballmer
Seagate Senior Researcher: Heat Can Kill Data on Stored SSDs
May 13, 2015, 2:49 PM
How to Recover Most Apps After Your NVIDIA Driver Crashes in Windows 10
March 30, 2015, 12:54 PM
Tinkerer Gets Old School Mac Plus Running on the Modern Web
March 24, 2015, 6:41 PM
Facebook-Backed Oculus Rift's Release Date Slips to 2016; Valve and HTC Salivate
March 16, 2015, 5:58 PM
Hackers Steal Roughly $1 Billion From Banks Using Malware RAT
February 17, 2015, 9:30 AM
NVIDIA Kills Mobile GPU Overclocking, Robs Customers Who Paid For It
February 16, 2015, 8:59 AM
Most Popular Articles
SanDisk's 200GB microSDXC Card Turns Smartphones Into Enviable PMPs
June 26, 2015, 2:02 PM
Windows XP, Vista Users Can Get Free Windows 10 Upgrade Thanks to Loophole
June 23, 2015, 2:23 PM
U.S. Navy Spends $9M USD to Cling to Windows XP, Office 2003
June 24, 2015, 2:03 PM
SpaceX Falcon 9's Seventh Supply Mission to ISS Ends w/ Fiery Stage 1 Explosion
June 28, 2015, 1:10 PM
Under the Hood: Digging Into Sony's New CUH-1200 PS4, 1 TB Ultimate Player Ed.
June 23, 2015, 10:33 AM
Latest Blog Posts
Sceptre Airs 27", 120 Hz. 1080p Monitor/HDTV w/ 5 ms Response Time for $220
Dec 3, 2014, 10:32 PM
Costco Gives Employees Thanksgiving Off; Wal-Mart Leads "Black Thursday" Charge
Oct 29, 2014, 9:57 PM
"Bear Selfies" Fad Could Turn Deadly, Warn Nevada Wildlife Officials
Oct 28, 2014, 12:00 PM
The Surface Mini That Was Never Released Gets "Hands On" Treatment
Sep 26, 2014, 8:22 AM
ISIS Imposes Ban on Teaching Evolution in Iraq
Sep 17, 2014, 5:22 PM
More Blog Posts
Copyright 2015 DailyTech LLC. -
Terms, Conditions & Privacy Information