MPEG-4 (Audio Formats)

MPEG-4 further on these related pages:

Apple iPod@ MPEG-4 Standard@ Software VQF@

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MPEG-4 Sites:

QuickTime development QuickTime development: Apple offers technical FAQs, knowledge base and publicly available documentation files including the MOV file format. (MPEG-4) http://developer.apple.com/quicktime/ Doom9 Doom9: Besides this forum for audio codecs there are others for container formats and video encoding in general with FAQs. (MPEG-4) http://forum.doom9.org/forumdisplay.php?forumid=11 Tuner2 Tuner2: List of internet radio stations using aacPlus for their low bitrate streams, among them SomaFM.com and Boomer Radio. (MPEG-4) http://www.tuner2.com/ Via Licensing Via Licensing: Patent pool administrator for AAC with FAQs and overviews of royalty fees for commercial implementations. (MPEG-4) http://www.vialicensing.com/ Audiocoding.com Audiocoding.com: The open source project FAAC includes an AAC encoder and decoder (FAAD2) with source code packages, developer mailing list, knowledge base, news section and user forum. (MPEG-4) http://www.audiocoding.com/ Ross Bencina Structured Audio Ross Bencina Structured Audio: The writer of AudioMulch, free soundsynthesis software, offers a SAOL/SASL reference guide and decoder resources. (MPEG-4) http://www.audiomulch.com/sa/ MPEG LA MPEG LA: Patent pool administrator for the MPEG-4 Systems part of the standard including the MP4 file format. (MPEG-4) http://www.mpegla.com/m4s/ 3GPP SA4 3GPP SA4: This working group of the 3GPP standardization organization deals with codecs like enhanced aacPlus used in mobile telecommunication. (MPEG-4) http://www.3gpp.org/TB/SA/SA4/SA4.htm Dissertation of Dr. Ye Wang Dissertation of Dr. Ye Wang: "Selected advances in audio compression and compressed domain processing", comprehensive overview of codecs for internet and mobile communication and new methods for their improvement. (MPEG-4)[PDF] http://sivut.koti.soon.fi/lasse55/wangye_PhD_final%20collated.pdf Structured Audio Open Group 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. (MPEG-4) http://lsiwww.epfl.ch/saog/ Digital Radio Mondiale 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. (MPEG-4) http://www.drm.org/ Coding Technologies Coding Technologies: Company that invented Spectral Band Replication (SBR) and combined it with MP3 (mp3PRO) and AAC (aacPlus or HE AAC). (MPEG-4) http://www.codingtechnologies.com/ AES Publications AES Publications: All available articles and documents from the Journal of Audio Engineering Society with search tool including a CD about coding artifacts. (MPEG-4) http://www.aes.org/publications/ Mobiledia Mobiledia: Reviews, articles and forums about mobile phones from Nokia, Sony Ericsson, Motorola and other companies capable of AAC/MP4 playback. (MPEG-4) http://www.mobiledia.com/ MPEG-4 Structured Audio 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. (MPEG-4) http://sound.media.mit.edu/mpeg4/ Apple Apple: Overview of their implementation and contribution to the MPEG-4 standard. (MPEG-4) http://www.apple.com/mpeg4/ Fraunhofer IIS 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. (MPEG-4) http://www.iis.fraunhofer.de/amm/techinf/mpeg4/audio.html Machine Listening 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. (MPEG-4) http://web.media.mit.edu/~tristan/Classes/MAS.945/technical.html Nokia developer forum Nokia developer forum: Platform to support the implementation of their software SDKs including AAC/MP4. (MPEG-4) http://discussion.forum.nokia.com/forum/ MPEG4.net MPEG4.net: Resource for news, information and products about MPEG-4, H.264, Windows Media, High-Definition, Streaming Media and related technologies. (MPEG-4) http://www.mpeg4.net/ Everwicked.com Everwicked.com: Comprehensive guides, a forum and other resources about audio/digital video coding and streaming. (MPEG-4) http://www.everwicked.com/ Mayah Mayah: Hard- and software company for professional broadcasting products with AAC/MP4 support. (MPEG-4) http://www.mayah.com/ Mp4-tech Mp4-tech: The web archive of the public MPEG Industry Forum mailing list with many knowledgeable participants from companies like FhG, Apple and Microsoft. (MPEG-4) http://lists.mpegif.org/pipermail/mp4-tech/ Roberto's listening tests Roberto's listening tests: Provides public group comparisons of several AAC codecs and other formats at different bitrates. (MPEG-4) http://www.rjamorim.com/test/ Faac.sourceforge.net Faac.sourceforge.net: The old Audiocoding.com forum is still available providing valuable content like FAAC compiling issues with its search tool. (MPEG-4) http://faac.sourceforge.net/oldsite/phorum/ Telos Systems Telos Systems: Hardware manufacturer of the Zephyr ISDN codecs for radio and television broadcasters providing articles and brochures about different AAC implementations. (MPEG-4) http://www.telos-systems.com/techtalk/ Hydrogen Audio Hydrogen Audio: Forum about audio coding in general with two separate boards for AAC. (MPEG-4) http://www.hydrogenaudio.org/ MPEG Audio MPEG Audio: Official site of this MPEG subgroup with FAQs for the different standards, publicly available reference documents and software. (MPEG-4) http://www.tnt.uni-hannover.de/project/mpeg/audio/ MP4-SA Developer Tools 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. (MPEG-4) http://www.cs.berkeley.edu/~lazzaro/sa/ ISO/IEC ISO/IEC: Publicly available standards from the International Organization for Standardization including MPEG-4 with 14496-5 containing the Audio, Visual and Systems parts. (MPEG-4) http://www.iso.org/iso/en/ittf/PubliclyAvailableStandards/