3GP to AC3

Convert 3GP to AC3 - online and free - this page also contains information on the 3GP and AC3 file extensions.

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File extension .3gp
Category Video File
Description 3GP is a file format designed for video on mobile phones. 3GP is a container that facilitates the creation, editing, transfer and viewing of video and audio using a 3G mobile phone. It is supported by most smartphones, including the Apple iPhone.
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Technical Details 3GP is based on the structure of MPEG-4 Part 14, otherwise known as MP4. 3GP was designed to reduce the overhead in terms of storage and bandwidth to allow video files that could be handled by smartphones.
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 3GP
Official Specification from 3GPP Organisation
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File extension .ac3
Category Music File
Description AC3 is an audio file specifically developed by Dolby Digital to provide surround sound audio. The format is used for audio on many DVD and Blu-Ray media. In order for the file to be correctly decoded and output, a DVD player with a Dolby Digital compatible home cinema system is required. It became the de facto standard for surround sound, and has held that position since its inception in 1992, with it coming to home cinema in 1995.
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Technical Details AC3 allows for separate audio to be defined for each of the 6 speakers in the standard cinema and home cinema setup. This produces the effect of surround sound to the person listening to the audio file. The six channels consist of right front, center, left front, rear right, rear left and a sub woofer.
Associated programs QuickTime Player
VLC Media Player
Windows Media Player
Developed by Dolby Digital
MIME type audio/ac3
audio/vnd.dolby.dd-raw
audio/x-ac3
Useful links Information on AC3
Offiial Dolby Digital Website
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