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The current variant is specified in ISO/IEC standard 14496-3.
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It is also part of the MPEG-4 standard, it is most widely used to create small digital audio files. It too compresses digital audio files but to a bigger degree. Apple are the biggest users of this format and if you have an iPod or iPhone then you will have come across this format as it is iTunes default audio format.ĪAC is similar in concept to MP3 but goes further. It is at least one tenth the size of CD digital data. AAC is about half the size of MP3 but with better quality. It essentially cuts out, or compresses, information that the human ear cannot pick up thereby making digital files smaller and more easily managed and therefore quicker to download. An added benefit of M4A files are that they do not carry any Digital Rights Management protection.ĪAC is similar to MP3.
Sabaton discography m4a aac mp4#
It was developed by Apple and it only contains audio data, rather than MP4 which contains both audio and video. This effectively means that they can be decoded back to their original quality they were at the point of compression. M4A is a file encoded with advanced audio coding (AAC) and is implemented with AAC compression standards or ALAC (Apple Lossless Audio Codec) specifications. It's the default audio format for Apple products, Nintendo products, Android, Blackberry, PlayStation, and many in-dash music systems in cars. M4A files sound better than MP3 files when encoded at the same bit rate due to some of the enhancements. It was generally intended as the successor to MP3 and the file quality is better and file sizes smaller compared to MP3 files. M4A audio files were developed to enable easy sharing of digital music, audiobook content, podcasts.