What is AAC?Audio Format DescriptionAAC, or Advanced Audio Coding, is a lossy compression and encoding algorithm for digital audio. Designed by the MPEG group that includes Dolby, Sony, Nokia, FhG, and AT&T, it is believed to be the successor to MP3. AAC was officially declared an international standard in 1997. AAC is often referred to as ‘MP4 audio’ as it is usually packaged inside an MP4 container.The AAC format gives developers increased flexibility over MP3, thus allowing them to develop parallel encoding strategies which in turn give more efficient compression. The two main coding strategies used, which greatly reduce the amount of data, are discarding of irrelevant signal components, and eliminating redundancies in the coded audio signal. Other strategies include adding of internal error correction codes, processing the signal according to its complexity, and applying of a special algorithm to each frame in order to prevent corrupt samples. Some of the other advantages of AAC are:
Because of all its advantages, AAC has become widely popular and has replaced MP3 to a great extent. It is today the preferred audio codec for the internet, and the wireless and digital platforms. AAC is the default audio format for iTunes, iPod, and iPhone. It is also the standard audio format for Sony’s Play Station 3, Nintendo’s Wii, and MPEG4 video. Other portable players that support AAC include Microsoft Zune, Creative Zen, Sony Walkman, and SanDisk Sansa. The mobile phones that support AAC are Nokia N series, Black Berry, and Sony Ericsson (all phones beginning with K700 and W550; P990; and K800 and later). Other devices that support AAC include Palm OS based PDA’s, Microsoft Windows Mobile, Epson, Sony Reader, Squeezebox, all major car audio stereo systems, and almost all computer media players. Factory Audio Converter will convert to and from AAC in 3 simple steps. MP3 vs. AAC, or what is the best lossy formatConvert Stereo to Mono |
Wit of the dayMusic is the shorthand of emotion. |
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