Cisco TelePresence System Uses Fraunhofer IIS AAC-Low Delay Audio Coding to Deliver High Quality Meeting Experiences.ERLANGEN, Germany -- Cisco has selected the MPEG-4 AAC-Low Delay codec (1) (enCOder/DECoder) A hardware circuit that performs analog-to-digital conversion (ADC) and digital-to-analog (DAC) conversion. When analog signals are entered into a computer, cellphone or other device via a microphone or video source such as VHS tape or analog TV, from the Fraunhofer Institute for Integrated Circuits IIS (Internet Information Services) Microsoft's Web server. IIS runs under the server versions of Windows, adding HTTP server capability to the Windows operating system. to transmit audio in the Cisco TelePresence meeting solution, which transcends traditional video to provide a "face-to-face" meeting experience through a simple interface. The Fraunhofer codec provides a realistic sound image through several channels of full-bandwidth, music-quality audio, with the low-latency delay needed for interactive conversations. "We chose Fraunhofer not only because it invented the technology, but because of its outstanding technical reputation, which was clear in the process of integration of the technology. When coupled with Cisco's hardware and echo control software, the quality of the audio experience was fantastic," said Philip Graham, senior director of engineering for Cisco's TelePresence Meaning "long distance presence," it refers to videoconferencing applications that feel like a live meeting. Notable features are larger screens that may approach a virtual reality environment and sensors that keep at least one window focused on whomever is speaking at the moment. Systems Business Unit. "Fraunhofer is pleased to have a leader such as Cisco join the many companies using AAC-Low Delay for interactive conferencing. The Cisco TelePresence system offers a new level of realism in conferences that needs the super-wideband fidelity of our codec," said Harald Popp, head of the Multimedia Realtime Systems department at Fraunhofer IIS. AAC-LD is a low-delay version of 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). 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. codec family, which includes the AAC-LC codec used by the iPod and ISDB ISDB Integrated Services Digital Broadcasting (Japan) ISDB International Society of Drug Bulletins ISDB Idaho School for the Deaf and the Blind ISDB International Sectoral Data Base (OECD) television, as well as the HE-AAC codec used in XM Radio and 3G mobile music download services. Developed by Fraunhofer IIS, AAC-LD offers similar audio quality to music codecs The following is a list of codecs. Audio codecs Non-compression formats
An open international standard, MPEG-4 AAC-LD is the predominant codec for next-generation audio and video conferencing systems offering realistic audio fidelity. AAC-LD is also used in broadcasting and communication systems for music-quality audio transmission where delay is a factor. Further information on AAC-Low Delay can be found at www.iis.fraunhofer.de/amm. Founded in 1985, the Fraunhofer Institute for Integrated Circuits IIS in Erlangen, with its 480 staff members, ranks first in employees and revenues among the Fraunhofer Institutes. Fraunhofer IIS has achieved worldwide recognition for the development of the audio coding method mp3. Fraunhofer IIS provides research services on a contract basis and licenses technology in the areas of audio and video source coding, multimedia realtime systems, digital radio broadcasting and digital cinema systems, integrated circuits and sensor systems, design automation, wireless, wired and optical networks, localization Customizing software and documentation for a particular country. It includes the translation of menus and messages into the native spoken language as well as changes in the user interface to accommodate different alphabets and culture. See internationalization and l10n. and navigation, imaging systems and nanofocus X-ray technology, high-speed cameras, medical sensor solutions, and communications technology in transport and logistics. Its budget of 58 million Euro is financed primarily by projects from industry and public institutions, with less than 20 percent subsidized by state and federal funds Federal Funds Funds deposited to regional Federal Reserve Banks by commercial banks, including funds in excess of reserve requirements. Notes: These non-interest bearing deposits are lent out at the Fed funds rate to other banks unable to meet overnight reserve . For more information visit www.iis.fraunhofer.de/amm. |
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