3GPP to AAC

Convert 3GPP to AAC - online and free - this page also contains information on the 3GPP and AAC file extensions.

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File extension .3gpp
Category Video File
Description 3GPP was developed to make a global third generation mobile phone system specification with the aim to drive file sizes down and have a format that worked across a multitude of different mobile devices. 3GPP are deployed across much of the GSM market.
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Technical Details The 3GPP file stores the video element as MPEG-4 Part 2/H.263/MPEG-4 Part 10 (H.264) and the audio element as AMR-NB/AMR-WB/AMR-WB+/AAC-LC/HE-AAC V1. It is a multimedia container format defined by the Third Generation Partnership Project (3GPP) for 3G UMTS multimedia services. It is used primarily on 3G mobile phones but can also be played on some 2G and 4G phones.
Associated programs QuickTime Player
VLC Media Player
Windows Media Player
Developed by 3rd Generation Partnership Project (3GPP)
MIME type video/3gpp
audio/3gpp
Useful links More Information on 3GPP
Official Specification from 3GPP Organisation
Convert 3GPP file
File extension .aac
Category Music File
Description AAC is similar to MP3. 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. AAC is about half the size of MP3 but with better quality. It is at least one tenth the size of CD digital data. 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.
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Technical Details AAC is similar in concept to MP3 but goes further. It too compresses digital audio files but to a bigger degree. It is also part of the MPEG-4 standard, it is most widely used to create small digital audio files. The current variant is specified in ISO/IEC standard 14496-3. Like MP3, AAC is a lossy algorithm. The human hearing system cannot hear quiet sounds in the presence of loud sounds of a similar frequency; for example, a voice conversation cannot be heard while an aeroplane flies low overhead. This is known as auditory masking, this allows the discarding of data with minimal loss of quality.
Associated programs KMPlayer
RealPlayer
VideoLAN VLC Media Player
Windows Media Player
iTunes
Developed by A combination of Fraunhofer IIS, AT&T Bell Laboratories, Dolby and Sony Corporation
MIME type audio/aac
Useful links More detail about the AAC file format
How to play AAC files
Convert AAC file

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