MPEG Claims ``A Major Step Forward'' in Making aacPlus A Core Component Of MPEG-4 Audio.Business Editors MOUNTAIN VIEW, Calif.--(BUSINESS WIRE)--Nov. 19, 2002 Texas Instruments See TI. (company) Texas Instruments - (TI) A US electronics company. A TI engineer, Jack Kilby invented the integrated circuit in 1958. Three TI employees left the company in 1982 to start Compaq. , Loudeye, And M4IF M4IF MPEG 4 Industry Forum M4IF Mpeg4 Industry Forum Indicate Their Support for the New Standard Based On SBR SBR - Spectral Band Replication From Coding Technologies Coding Technologies, the industry's leading provider of audio compression Encoding digital audio data to take up less storage space and transmission bandwidth. Audio compression typically uses lossy methods, which eliminate bits that are not restored at the other end. ADPCM and MP3 are examples of audio compression methods. See audio codec and data compression. technologies for the mobile, digital broadcasting Digital broadcasting is the practice of using digital data rather than analogue waveforms to carry broadcasts over television channels or assigned radio frequency bands. It is becoming increasingly popular for television usage (especially satellite television) but is having a and Internet markets worldwide, announced today that the MPEG (Moving Pictures Experts Group) An ISO/ITU standard for compressing digital video. Pronounced "em-peg," it is the universal standard for digital terrestrial, cable and satellite TV, DVDs and digital video recorders (DVRs). organization has promoted the aacPlus technology to final proposed draft amendment status as part of MPEG-4 Audio. Called "High-efficiency AAC (Advanced Audio Coding) An audio compression technology that is part of the MPEG-2 and MPEG-4 standards. AAC, especially MPEG-4 AAC, provides greater compression and better sound quality than MP3, which also came out of the MPEG standard. " by MPEG, Coding Technologies has already released updated aacPlus libraries to match the current specification. In addition, industry leaders Texas Instruments, Loudeye, and M4IF have offered their support for the improved MPEG-4 Audio standard. aacPlus is the combination of MPEG AAC and Coding Technologies' SBR (Spectral Band Replication (audio, compression) Spectral Band Replication - (SBR) Guessing the nontransmitted higher frequency range of a compressed audio file by some helper bits (transmiited with the stream) and the transmitted base band. ) technology. SBR is a unique bandwidth extension technique, which enables audio codecs to deliver the same quality at half the bit rate. SBR is a backward and forward Adv. 1. backward and forward - moving from one place to another and back again; "he traveled back and forth between Los Angeles and New York"; "the treetops whipped to and fro in a frightening manner"; "the old man just sat on the porch and rocked back and forth all compatible method to enhance the efficiency of any audio codec; putting the "PRO" in mp3PRO and the "Plus" in aacPlus. As a result, aacPlus delivers streaming, as well as download, CD-quality stereo at 48 kbps and excellent quality stereo at 32 kbps. This level of efficiency fundamentally enables new applications in the markets of mobile and digital broadcast. "We are thrilled that aacPlus is on track to become the core component of MPEG-4 Audio," stated David Frerichs, Coding Technologies. "aacPlus was introduced as the new MPEG-4 Audio reference model in 2001 and it's incredible to have such great momentum within MPEG, as well as to receive endorsements from these industry leaders." "Texas Instruments is pleased that aacPlus is becoming part of the MPEG-4 specification," said Curt Waters, Manager of the Cellular Media Business at Texas Instruments. "By providing high audio quality at lower bit rates, aacPlus is well-suited to provide multimedia content for wireless applications." "Our customers expect us to provide content services in whatever format they select," said Lambert Jemley, Vice President of Marketing at Loudeye Corp. "We are happy to hear that aacPlus is now being finalized in MPEG-4 and we are ready to encode with the new standard." "It is great to see SBR technology becoming a part of the MPEG-4 Audio standard," said Rob Koenen, President of M4IF. "High Efficiency AAC is clearly the most efficient audio codec available and it is encouraging that Coding Technologies is deploying aacPlus today so people can stream CD-quality stereo at only 48kbps using cutting-edge, open standards-based technology." Coding Technologies is licensing libraries and reference source code for MPEG-4 aacPlus on Mac OS X, Win32, Linux, and multiple DSPs. Developers can contact Coding Technologies directly for immediate access to evaluation kits. About Coding Technologies Coding Technologies provides the best audio compression for mobile, broadcasting, and Internet. SBR(TM) (Spectral Band Replication) from Coding Technologies is a backward and forward compatible method to enhance the efficiency of any audio codec; putting the "PRO" in mp3PRO and the "Plus" in aacPlus. SBR is a fundamental enabler of the Digital Radio Mondiale (communications) Digital Radio Mondiale - (DRM) A form of monaural digital broadcast using carrier frequencies below 30 MHz. DRM uses MPEG-4 AAC Main Profile and SBR at data rates of 16-25 kbps. http://drm.org/. open standard and is on track to become a core component of MPEG-4 Audio. Coding Technologies is a privately held company privately held company A firm whose shares are held within a relatively small circle of owners and are not traded publicly. with offices in Sweden, Germany, and Silicon Valley. Founded in 1997 in Stockholm, the company later merged with a spin-off of the renowned Fraunhofer Institute in Germany, the inventor of MP3. Coding Technologies customers include XM Radio, Thomson Multimedia, Musicmatch, and Texas Instruments. For more information, visit www.codingtechnologies.com. About Texas Instruments For information on Texas Instruments, please visit www.ti.com. About Loudeye Corp. For information on Loudeye Corp., please visit www.loudeye.com. About M4IF For information on the M4IF, please visit http://www.m4if.org. |
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