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MPEG-4
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Apple iPod (41)
MPEG-4 Standard (3)
Software (66)
VQF (1)
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  QuickTime development http://developer.apple.com/quicktime/
Apple offers technical FAQs, knowledge base and publicly available documentation files including the MOV file format.
  Fraunhofer IIS http://www.iis.fraunhofer.de/amm/techinf/mpeg4/audio.html
Information about the different parts of MPEG-4 Natural or General Audio (GA) from one of the inventors of these formats, see also their page about MPEG-2 AAC.
  http://www.apple.com/quicktime/technologies/mpeg4/ http://www.apple.com/quicktime/technologies/mpeg4/
Overview of their implementation and contribution to the MPEG-4 standard.
  Digital Radio Mondiale http://www.drm.org/
DRM is a world-wide initiative to use analog AM radio for digital sound and services implementing aacPlus at very low bitrates, often mixed up with Digital Rights Management for copy protection.
  http://standards.iso.org/ittf/PubliclyAvailableStandards/ http://standards.iso.org/ittf/PubliclyAvailableStandards/
Publicly available standards from the International Organization for Standardization including MPEG-4 with 14496-5 containing the Audio, Visual and Systems parts.
  AES Publications http://www.aes.org/publications/
All available articles and documents from the Journal of Audio Engineering Society with search tool including a CD about coding artifacts.
  Via Licensing http://www.vialicensing.com/
Patent pool administrator for AAC with FAQs and overviews of royalty fees for commercial implementations.
  Hydrogen Audio http://www.hydrogenaudio.org/
Forum about audio coding in general with two separate boards for AAC.
  Text-To-Speech Synthesis http://www.bell-labs.com/project/tts/
Bell Labs' / Lucent Technologies multi-lingual TTS demos and introduction to this coding method.
  Coding Technologies http://www.codingtechnologies.com/
Company that invented Spectral Band Replication (SBR) and combined it with MP3 (mp3PRO) and AAC (aacPlus or HE AAC).
  Speech Synthesis Examples http://www.ims.uni-stuttgart.de/~moehler/synthspeech/
Many TTS demos in several languages from different systems with links to their homepages.
  Roberto's listening tests http://www.rjamorim.com/test/
Provides public group comparisons of several AAC codecs and other formats at different bitrates.
  http://www.mayah.com/ http://www.mayah.com/
Hard- and software company for professional broadcasting products with AAC/MP4 support.
  http://www.tuner2.com/ http://www.tuner2.com/
List of internet radio stations using aacPlus for their low bitrate streams, among them SomaFM.com and Boomer Radio.
  Mobiledia http://www.mobiledia.com/
Reviews, articles and forum discussions about cell phones capable of AAC/MP4/3GP playback (also called "iTunes" format sometimes, use the site search).
  MPEG4.net http://www.mpeg4.net/
Resource for news, information and products about MPEG-4, H.264, Windows Media, High-Definition, Streaming Media and related technologies.
  Introduction to Digital Audio Coding and Standards http://www.springer.com/engineering/signals/book/978-1-4020-7357-1
Book by Marina Bosi and Richard E. Goldberg.
  Nokia developer forum http://discussion.forum.nokia.com/forum/
Platform to support the implementation of their software SDKs including AAC/MP4.
  Telos Systems http://www.telos-systems.com/techtalk/
Hardware manufacturer of the Zephyr ISDN codecs for radio and television broadcasters providing articles and brochures about different AAC implementations.
  Mp4-tech http://lists.mpegif.org/pipermail/mp4-tech/
The web archive of the public MPEG Industry Forum mailing list with many knowledgeable participants from companies like FhG, Apple and Microsoft.
  MPEG4.net News http://www.mpeg4.net/rss/mp4news.xml
The latest headlines about MPEG-4, Windows Media, Streaming Media and related technologies.
  MPEG4.net Press releases http://www.mpeg4.net/rss/mp4press.xml
Announcements of new products from companies or events from organizations related to MPEG-4 and other technologies.
  MPEG4.net Resources http://www.mpeg4.net/rss/mp4resource.xml
New sources of information like web sites, documentation or tests for MPEG-4 and related technologies.
  IBM Composite Media Group http://researchweb.watson.ibm.com/mpeg4/Projects/
Overview of their implementation and contribution to the MPEG-4 standard, especially for the Systems part.
  Machine Listening http://web.media.mit.edu/~tristan/Classes/MAS.945/technical.html
Reading list for an MIT seminar, most of the mentioned publications are directly available on their web server or linked to Amazon's book section.
  Audio Research Labs http://www.audioresearchlabs.com/
ARL is a commercial laboratory involved in subjective quality assessment methods like preparing and analyzing codec comparisons for 3GPP.
  EE Times http://www.eet.com/story/OEG20011218S0048/
"Meeting MPEG-4 advanced audio coding requirements", knowledgeable article summarizing the most important properties of AAC for hardware playback.
  MPEG4.net Events http://www.mpeg4.net/rss/mp4events.xml
Upcoming MPEG-4 and Streaming Media related calendar of events.
  http://forum.doom9.org/forumdisplay.php?forumid=11 http://forum.doom9.org/forumdisplay.php?forumid=11
Besides this forum for audio codecs there are others for container formats and video encoding in general with FAQs.
  Structured Audio Open Group http://lsiwww.epfl.ch/saog/
The main goal of the SAOG was to implement Structured Audio (SA) in open source applications offering a portal for their users with forum and downloads of samples and software.
  MP4-SA Developer Tools http://www.cs.berkeley.edu/~lazzaro/sa/
John Lazarro and John Wawrzynek from the CS Division, UC Berkeley provide tutorials, downloads, manuals and links related to the Structured Audio format.
  Principles of digital audio http://www.amazon.com/exec/obidos/ASIN/0071348190
Book by Ken C. Pohlmann.
  Applications of Digital Signal Processing to Audio and Acoustics http://www.amazon.com/exec/obidos/ASIN/0792381300
Book by Mark Kahrs and Karlheinz Brandenburg.

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