Convert AAC to M4A offline
Convert local AAC files to M4A files offline by JavaScript in your web browser without any software downloads or file uploads!
OUTPUT FILES:
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How to convert AAC to M4A offline
Choose local AAC files, choose "M4A" 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. Use online converter instead if this offline converter doesn't work in your web browser.
| Name | AAC | M4A |
| Full name | Advanced Audio Coding | Audio-only MPEG-4 |
| File extension | .aac | .m4a |
| MIME | audio/aac | video/mp4 |
| Developed by | Bell Labs, Fraunhofer Institute etc. | International Organization for Standardization |
| Type of format | Audio compression format | Media container |
| Introduction | 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. | MPEG-4 Part 14 or MP4 is a digital multimedia container format most commonly used to store video and audio, but can also be used to store other data such as subtitles and still images. M4A stands for MPEG 4 Audio and is a filename extension used to represent audio files. |
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