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See also:

  • AES Publications
    All available articles and documents from the Journal of Audio Engineering Society with search tool including a CD about coding artifacts.

  • Apple
    Overview of their implementation and contribution to the MPEG-4 standard.

  • Applications of Digital Signal Processing to Audio and Acoustics
    Book by Mark Kahrs and Karlheinz Brandenburg.

  • Audio Research Labs
    ARL is a commercial laboratory involved in subjective quality assessment methods like preparing and analyzing codec comparisons for 3GPP.

  • Coding Technologies
    Company that invented Spectral Band Replication (SBR) and combined it with MP3 (mp3PRO) and AAC (aacPlus or HE AAC).

  • Digital Radio Mondiale
    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.

  • Doom9
    Besides this forum for audio codecs there are others for container formats and video encoding in general with FAQs.

  • EE Times
    "Meeting MPEG-4 advanced audio coding requirements" target="_blank", knowledgeable article summarizing the most important properties of AAC for hardware playback.

  • Facial Animation
    AT&T Labs develops a computer human interface using 2D and 3D talking head-and-shoulder models driven by a Text-To-Speech synthesizer (TTS).

  • Fraunhofer IIS
    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.

  • 3GPP SA4
    This working group of the standardization organization deals with codecs like enhanced aacPlus or AMR-WB+ used in mobile telecommunication.

  • Hydrogen Audio
    Forum about audio coding in general with two separate boards for AAC.

  • IBM Composite Media Group
    Overview of their implementation and contribution to the MPEG-4 standard, especially for the Systems part.

  • Introduction to Digital Audio Coding and Standards
    Book by Marina Bosi and Richard E. Goldberg.

  • ISO/IEC
    Publicly available standards from the International Organization for Standardization including MPEG-4 with 14496-5 containing the Audio, Visual and Systems parts.

  • Machine Listening
    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.

  • Mayah
    Hard- and software company for professional broadcasting products with AAC/MP4 support.

  • Mobiledia
    Reviews, articles and forum discussions about cell phones capable of AAC/MP4/3GP playback (also called "iTunes" target="_blank" format sometimes, use the site search).

  • MPEG LA
    Patent pool administrator for the MPEG-4 Systems part of the standard including the MP4 file format.

  • MPEG-4 Structured Audio
    Technical information and developer resources from the Machine Listening Group at the MIT Media Laboratory, the official homepage for this format maintained by Eric Scheirer.

  • MPEG4.net
    Resource for news, information and products about MPEG-4, H.264, Windows Media, High-Definition, Streaming Media and related technologies.

  • MP4-SA Developer Tools
    John Lazarro and John Wawrzynek from the CS Division, UC Berkeley provide tutorials, downloads, manuals and links related to the Structured Audio format.

  • Mp4-tech
    The web archive of the public MPEG Industry Forum mailing list with many knowledgeable participants from companies like FhG, Apple and Microsoft.

  • Nokia developer forum
    Platform to support the implementation of their software SDKs including AAC/MP4.

  • Principles of digital audio
    Book by Ken C. Pohlmann.

  • QuickTime development
    Apple offers technical FAQs, knowledge base and publicly available documentation files including the MOV file format.

  • Roberto's listening tests
    Provides public group comparisons of several AAC codecs and other formats at different bitrates.

  • Speech Synthesis Examples
    Many TTS demos in several languages from different systems with links to their homepages.

  • Structured Audio Open Group
    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.

  • Telos Systems
    Hardware manufacturer of the Zephyr ISDN codecs for radio and television broadcasters providing articles and brochures about different AAC implementations.

  • Text-To-Speech Synthesis
    Bell Labs' / Lucent Technologies multi-lingual TTS demos and introduction to this coding method.

  • Tuner2
    List of internet radio stations using aacPlus for their low bitrate streams, among them SomaFM.com and Boomer Radio.

  • Via Licensing
    Patent pool administrator for AAC with FAQs and overviews of royalty fees for commercial implementations.

   XML Feeds:

  • Hydrogen Audio
    Active forum topics in AAC - General and AAC - Tech as well as in MPEG4 Discussion. [RSS]

  • MPEG4.net Events
    Upcoming MPEG-4 and Streaming Media related calendar of events. [RSS]

  • MPEG4.net News
    The latest headlines about MPEG-4, Windows Media, Streaming Media and related technologies. [RSS]

  • MPEG4.net Press releases
    Announcements of new products from companies or events from organizations related to MPEG-4 and other technologies. [RSS]

  • MPEG4.net Resources
    New sources of information like web sites, documentation or tests for MPEG-4 and related technologies. [RSS]

 

 

 

 

 

 

 

 

 

 

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