“MP3 Surround”的意思、由来-开放百科全书

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MP3 Surround

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{{Distinguish|MPEG Surround|MPEG Multichannel}}MP3 Surround is an extension of MP3 for multi-channel audio support including 5.1 surround sound. It was developed by Fraunhofer IIS in collaboration with Thomson and Agere Systems, and released in December 2004.^[1]^[2]^[3]

MP3 Surround is backward compatible with standard MP3.^[1]^[4] The data overhead is 16 kbit/s, which allows for file sizes similar to standard stereo MP3 files. The file size is approximately 10% larger than that of a typical MP3 file. The current evaluation encoder is licensed for personal and non-commercial uses. An MP3 Surround file can be created from 5 or 6 channels of WAV audio.

Several companies, such as DivX, Inc. and Magix, have announced support for the new codec.^[5]^[6] DivX, Inc. released their first player with MP3 Surround support on September 6, 2006.

In January 2006, Thomson and Fraunhofer IIS also released two new companion technologies:

Ensonido, which allows playback of MP3 Surround 5.1 channel sound through stereo headphones, and

MP3 SX, which upgrades standard stereo mp3 file to mp3 surround files.

On its 5.5 release, Nullsoft Winamp has included the MP3 Surround format as a part of its integrated MPEG audio decoder (released October 10, 2007).

As of 2 July 2008, with system software v2.40, PlayStation 3 supports MP3 Surround playback.

^[7]

External links

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Downloads

References

1. ^¹mp3 SURROUND Set for Launch - Fraunhofer IIS, Thomson, and Agere Systems Unveil - Free mp3 SURROUND Evaluation Download
2. ^Hear all about it: MP3 goes surround-sound
3. ^{{Cite news|url=http://news.bbc.co.uk/2/hi/technology/3550833.stm|title=MP3 surround sound system debuts|publisher=BBC | date=22 March 2004}}
4. ^mp3 Surround {{webarchive|url=https://web.archive.org/web/20060113043237/http://www.mp3surround.com/ |date=2006-01-13 }}
5. ^Updated: Player 6.3.1 with mp3 Surround support now available!
6. ^MAGIX announces support of MP3 Surround into music and video editing tools {{webarchive|url=https://web.archive.org/web/20110719022456/http://www.iis.fraunhofer.de/en/pr/presse/2005/apr/magix.jsp |date=2011-07-19 }}
7. ^{{cite web |url=http://www.ps3sacd.com/news.html#_20080701 |title=Firmware v2.40 due |publisher=ps3sacd.com |accessdate=2009-08-09}}

4 : Audio codecs|Digital audio|MP3|Surround sound

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