MP4 to AAC Converter
Select files for conversion or just drag and drop them to the upload area
How to convert MP4 files to AAC online?
Click "Choose File" button to select a mp4 file on your computer. MP4 file size can be up to 50 Mb.
Convert MP4 to AAC
Click "Convert" button to start conversion.
Download your AAC
When the conversion process is complete, you can download the AAC file.
Information about MP4 and AAC file formats
|Full name||MP4 - MPEG-4 Part 14||AAC - Advanced Audio Coding|
|File extension||.mp4, .m4a, .m4p, .m4b, .m4r, .m4v||.aac|
|Developed by||International Organization for Standardization||Bell Labs, Fraunhofer Institute etc.|
|Type of format||Media container||Audio compression format|
|Description||MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.MPEG-4 Part 14 or MP4 is a digital multimedia format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. Like most modern container formats, it allows streaming over the Internet.||Advanced Audio Coding (AAC) is an audio coding standard for lossy digital audio compression. Designed to be the successor of the MP3 format, AAC generally achieves better sound quality than MP3 at similar bit rates. AAC has been standardized by ISO and IEC, as part of the MPEG-2 and MPEG-4 specifications.|
|Technical details||Most kinds of data can be embedded in MPEG-4 Part 14 files through private streams. A separate hint track is used to include streaming information in the file. The registered codecs for MPEG-4 Part 12-based files are published on the website of MP4 Registration authority (mp4ra.org).||AAC supports inclusion of 48 full-bandwidth audio channels in one stream plus 16 low frequency effects channels, up to 16 "coupling" or dialog channels, and up to 16 data streams. The quality for stereo is satisfactory to modest requirements at 96 kbit/s in joint stereo mode; however, hi-fi transparency demands data rates of at least 128 kbit/s.|
|File conversion||MP4 conversion||AAC conversion|
|Associated programs||Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player||foobar2000, AIMP, DirectShow, QuickTime, VLC media player.|