McDaveH said:
>>dinzdale wrote:
>>I love the apple/pc debate, because it highlights this strange identity religion of brand loyalty. In the end, it's just two tools, and you pick the one that does the job at the price point you want. (Incidentally I have both: built a PC for gaming and work, use an iMac for sound recording, have an iPhone, and use a non-apple mp3 player (iRiver clix)). But, imo apple's support for DRM-plagued files (iTunes store) makes them a huge loser - aggressively leveraging their market share to protect their stake in the hardware market at the expense of their loyal customers - i.e. not very hip at all (but who expects them to be?...) ok.
>Unfortunately iTunes dropped DRM on music a few months ago. Still, at least it was better than a right-click comment. Have fun with your PCs oh, & MP3 is 20 years old this year. Good to see you're on the cutting edge!
>
>McD
[quote name='McDaveH']
>
rgreen4 said:
As is VHS, MP3 is MPEG1. This century we're at MPEG4 (AAC, contributed by Dolby) from the same standards group not tied in anywhere.
McD
Excerpt from: http://en.wikipedia.org/wiki/MP3
MPEG-1 Audio Layer 3, more commonly referred to as MP3, is a digital audio encoding format using a form of lossy data compression. It is a common audio format for consumer audio storage, as well as a de facto standard of digital audio compression for the transfer and playback of music on digital audio players. MP3 is an audio-specific format that was designed by the Moving Picture Experts Group. The group was formed by several teams of engineers at Fraunhofer IIS in Erlangen, Germany, AT&T-Bell Labs in Murray Hill, NJ, USA, Thomson-Brandt, and CCETT as well as others. It was approved as an ISO/IEC standard in 1991.
Excerpt from: http://en.wikipedia.org/wiki/MPEG-4]
MPEG-4 is a collection of methods defining [compression of audio and visual (AV) digital data. It was introduced in late 1998 and designated a standard for a group of audio and video coding formats and related technology agreed upon by the ISO/IEC Moving Picture Experts Group (MPEG) under the formal standard ISO/IEC 14496. Uses of MPEG-4 include compression of AV data for web (streaming media) and CD distribution, voice (telephone, videophone) and broadcast television applications.
MPEG-4 absorbs many of the features of MPEG-1 and MPEG-2 and other related standards, adding new features such as (extended) VRML support for 3D rendering, object-oriented composite files (including audio, video and VRML objects), support for externally-specified Digital Rights Management and various types of interactivity. AAC (Advanced Audio Codec) was standardized as an adjunct to MPEG-2 (as Part 7) before MPEG-4 was issued.
MPEG-4 is still a developing standard and is divided into a number of parts. Companies promoting MPEG-4 compatibility do not always clearly state which "part" level compatibility they are referring to. The key parts to be aware of are MPEG-4 part 2 (including Advanced Simple Profile, used by codecs such as DivX, Xvid, Nero Digital and 3ivx and by Quicktime 6) and MPEG-4 part 10 (MPEG-4 AVC/H.264 or Advanced Video Coding, used by the x264 codec, by Nero Digital AVC, by Quicktime 7, and by next-gen DVD formats like HD DVD and Blu-ray Disc).
Most of the features included in MPEG-4 are left to individual developers to decide whether to implement them. This means that there are probably no complete implementations of the entire MPEG-4 set of standards. To deal with this, the standard includes the concept of "profiles" and "levels", allowing a specific set of capabilities to be defined in a manner appropriate for a subset of applications.
Initially, MPEG-4 was aimed primarily at low bit-rate video communications; however, its scope was later expanded to be much more of a multimedia coding standard. MPEG-4 is efficient across a variety of bit-rates ranging from a few kilobits per second to tens of megabits per second. MPEG-4 provides the following functionalities:
* Improved coding efficiency
* Ability to encode mixed media data (video, audio, speech)
* Error resilience to enable robust transmission
* Ability to interact with the audio-visual scene generated at the receiver
First, all PC users (Microsoft and Apple alike) enjoy the benefits of MPEG-4. All the codecs are there, for free! And excuse me, but in order to display the Dolby Digital logo, you must pay royalty to Dolby Laboratories. Dolby is old news... Dolby Labs was founded by Ray Dolby in Britain in 1965. Exactly 44 year old technologies...
Second, MP3 isn't obsolete technology at all. It just went beyond AAC. Please see:
Thomson Pumps up Volume With Tools for MP3HD Lossless Codec
Third, MPEG-4 isn't an Apple invention or exclusive domain, contrary to the BS some ignorant FUD suggests.
And finally, the most ubiquitous parts (algorithms now implemented in silicon ^1^ ) of MPEG-4 are MPEG-4 part 10 (MPEG-4 AVC/H.264 or Advanced Video Coding, used by the x264 codec, by Nero Digital AVC, a company that produced the Nero Burning software suite, first and foremost for the Microsoft Windows PC initially, then subsequently ported their apps to Linux. I am unsure of the Mac camp... But who cares? (Upon research on http://www.nero.com/enu/index.html, I can't find an Apple MacOS version or port).
Now who's behind the times?
MPEG-1 Audio Layer 3, is colloquically known as MP3. MPEG-1 is a subset of MPEG-2 which is a subset of MPEG-4. Technically, the benefits are higher lossy compression { for the layman, it means equal quality picture and sound in less bandwidth or absolute file size NOT higher quality yet more DRM } whereas the ultimate compression technology is zero loss. Also MPEG4 AAC (Advanced Audio Codec) was standardized as an adjunct to MPEG-2 (as Part 7) before MPEG-4 was issued. Effectively the audio portions of the AAC are MPEG-2, under MPEG-4.
MPEG-2 is the standard used to encode all DVD's picture and sound in the full multi-channel Dolby Digital methodology. Since day one the DVD standard has appeared.

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^1^ Examples of MPEG4 in silicon:
First MPEG4 decoder in silicon: (2002) For the PC of course!
http://www.thefreelibrary.com/SigmaAnnouncesFirstMPEG-4DecoderCardforPCUse%3BNewREALmagic...-a082539365
Sigma Designs (Nasdaq:SIGM), a leader in IP video streaming See streaming video and video stream. solutions, announced the first MPEG-4 client player add-in card for the PC. Marketed under the name REALmagic Xcard, Sigma's newest MPEG-4 offering turns a PC into a home theatre solution, providing TV playback of top entertainment content from DivX Networks, DVDs and new Internet See Web 2.0 and Internet2. Streaming MediaSee streaming audio, streaming video and digital media hub.
..... Click the link for more information. Alliance (ISMAISMA
See: International Security Market Association
..... Click the link for more information.) compliant video streams. Sigma's REALmagic Xcard will retail for $99.95 and will be available initially from the company's REALmagic Online store at www.buyrealmagic.com starting March 2002.
http://www.cedmagazi...-4-silicon.aspx
Conexant bows MPEG-4 silicon
Jeff Baumgartner
CedMagazine.com - November 29, 2004
Conexant Systems has introduced a family of high-definition television decoding silicon based on the advanced MPEG-4 AVC/H.264 codec.
Use of the more efficient compression technology in Conexant's CX2418X family will enable digital video providers to improve bandwidth utilization over traditional MPEG-2-based systems, the company said.
Conexant said the new silicon is the first set of products to result from the company's acquisition of Amphion Semiconductor in June 2004.
Conexant expects to reach volume production in Q2 2004. The chips are priced at $20 per unit in quantities of 10,000.
Please google: Results 1 - 10 of about 545,000 for mpeg4 in silicon. (0.08 seconds) for more eye opening and mind expanding reading... (Which some of us tarded Windows PC users like to do) It's hard to stay at the leading-edge, with a single company it appears? Especially one who claims to invent everything, and is being copied by all others, when in fact the exact opposite happens, in REALITY.
~~~~~~~~~~
None of us is a smart as all of us.
{Japanese Proverb}
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