Do you have an audio file such as M4A that will not play correctly? If so, our free-to-use M4A repair tools may be able to help. Our tool analyses the data contained within your M4A audio file and is able to determine if the content is valid. Our tool will let you know what is wrong with your M4A file and attempt to fix it.
Or drag and drop your files here to upload.
A maximum of 20 files can be uploaded at once.
Here are 3 simple steps to repair your M4A using our fast and free repair tool.
No. Our M4A repair tool will not adjust the quality of the repaired file.
Yes! Our M4A repair tool is 100% free to use.
No, you can repair as many files as you wish. We do not have any limits when using our M4A repair tool.
We aim to process M4A repairs as quickly as possible; this usually takes around 5 seconds; however, this may be longer depending on the file size and data needed to be repaired.
Once your M4A has been selected, it will undergo some initial checks to verify that the file has some basic information. If the initial checks pass, we then upload the file to our servers for more detailed analysis.
Yes, of course it is! Your M4A, once repaired, is deleted 15 minutes after upload, and any download link will expire after this time.
Yes! Our M4A repair tool will run on any system with a modern web browser.
| Extension | M4A |
| Full Name | Audio-only MPEG-4 |
| Type | Audio |
| Mime Type | audio/m4a |
| Format | Binary |
An M4A file is an Apple-developed extension of the existing MP4 file format with some added extra features centered around its audio capability. As this is an Apple-sponsored file format, it has native support for many Apple devices, including iPhones and iPads.
Although it is essentially an extension of MP4, the M4A format allows for improved audio capabilities. One of these is support for the AAC audio format, enabling higher audio compression rates while not sacrificing quality.
Support for M4A is provided by most video and audio editing packages, while playback of M4A files has widespread support amongst not only Apple devices but also Android and Windows too.
Due to the desire to keep M4A files as small as possible, most audio file formats store the audio data in a binary format. Often, this is also compressed using special techniques to further reduce the file size without any discernible loss in quality. As the file formats are generally binary, they will have a certain sequence of bytes preceding the sound data at the beginning of the file which is often referred to as the header. Our M4A repair tool is able to read this data from the header sequence and determine not only the type of file but also the length of the audio track, the number of channels, metadata, and more.
Most M4A files will contain two channels of audio data, which make up the stereo sound heard when playing the file. Other files may only have one, and some may have more than two. Our tool will analyse each channel separately and repair what it can. Where a channel is irreparable, the channel will be removed from the final repaired file.
The bitrate (aka quality) of any repaired audio file will remain as it was in the original file. Our tools will not change this setting.
