Convert MP4 to AAC offline

Convert local MP4 files to AAC files offline by JavaScript in your web browser without any software downloads or file uploads!






OUTPUT FILES:
# File Name File Size Actions
How to convert MP4 to AAC offline

Choose local MP4 files, choose "AAC" as target audio format, then click the "CONVERT OFFLINE" button to start offline conversions in bulk. File size can be up to 2GB. Please note this offline audio converter only works in web browsers that support new technologies such as WebAssembly, Shared Array Buffer and Site Isolation.

 

Name MP4 AAC
Full name MPEG-4 Part 14 Advanced Audio Coding
File extension .mp4, .m4a, .m4p, .m4b, .m4r, .m4v .aac
MIME video/mp4 audio/aac
Developed by International Organization for Standardization Bell Labs, Fraunhofer Institute etc.
Type of format Media container Audio compression format
Introduction 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.
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