AAC to M4A Converter

Select files for conversion or just drag and drop them to the upload area

How to convert AAC files to M4A online?

Step 1.

Upload AAC-file

Click "Choose File" button to select a aac file on your computer. AAC file size can be up to 50 Mb.
Step 2.

Convert AAC to M4A

Click "Convert" button to start conversion.
Step 3.

Download your M4A

Let the file convert and you can download your M4A file right afterwards.

Information about AAC and M4A file formats

Name AAC M4A
Full name AAC - Advanced Audio Coding M4A - Audio-only MPEG-4
File extension .aac .m4a
MIME type audio/aac video/mp4
Developed by Bell Labs, Fraunhofer Institute etc. International Organization for Standardization
Type of format Audio compression format Media container
Description 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.
Technical details 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. Audio-only MPEG-4 files generally have a .m4a extension. This is especially true of non-protected content. M4A is often compressed using AAC encoding (lossy), but can also be in Apple Lossless format.
Associated programs foobar2000, AIMP, DirectShow, QuickTime, VLC media player. Windows Media Player, RealPlayer, MPlayer, Media Player Classic, VLC Media Player, K-Multimedia Player
Wiki https://en.wikipedia.org/wiki/Advanced_Audio_Coding https://en.wikipedia.org/wiki/MPEG-4_Part_14