用Winamp 加上附件這個 Plugin 就可以撥放

我試過,但執行錯誤
我是 winamp 2.80 中文版

我ㄝ想知道ㄝ~
有沒有人還知道更多資訊的?

應該是AAC檔吧~~
MPEG-2 Advanced Audio Coding: Data Compression for the 21st Century
Most people would answer "no" when asked whether they have ever listened to an audio signal transmitted or stored by means of digital data compression. They probably do not know they have, as a considerable number of radio stations make use of data compression devices in order to archive their songs and commercials or to exchange features and news internally, even though the actual broadcast remains conventional FM. The major advantages of data compression are minimum memory requirement and minimum transmission bandwidth required by the compressed signal. This method is of useful service whenever resources are scarce or expensive. Thus digital radio (e.g. Eureka DAB, WorldSpace) and audio transmission in the internet constitute two major domains of application within the field of audio coding; it even gains ground in modern cinema sound systems.

The International Organization for Standardization ISO did foresee the importance of compression algorithms for video and audio signals already at an early stage and hence founded the Moving Pictures Expert Group MPEG with the intention to develop and standardize these methods. The group´s highly acclaimed achievements are the standards MPEG-1 and MPEG-2. In the course of many years the Fraunhofer Institute for Integrated Circuits IIS-A has made major contributions to the successful standardization of audio coding. The international cooperation of the Fraunhofer Institute and companies like AT&T, Sony and Dolby brought about the most efficient MPEG method for audio data compression up until now. It is called MPEG-2 Advanced Audio Coding AAC and was declared international standard by MPEG by the end of April 1997.



The driving force to develop AAC was the quest for an efficient coding method for surround signals, like 5-channel signals (left, right, center, left-surround, right-surround; see fig. 1) as being used in cinemas today. There have been algorithms for these signals in MPEG-2 for quite a while. Optimum efficiency, however, was not reached due to technical and historical reasons. Therefore, the set aim was a considerable decrease of necessary bitrate.


詳細的到這兒看吧~~
http://www.iis.fhg.de/amm/techinf/aac/

最新的QT6支援了AAC了,想像以看預告檔的行情。