mono / stereo, the same bit rate, etc.) as the damaged file. If you are asked to upload a sample file, this usually means that the tool needs to extract the metadata from a valid playable M4A file and insert it into the corrupted one.Īs a sample file, you can take any working (not damaged) M4A audio file recorded on the same device and with the same settings (e.g. To do this, give the task any name that is easy to remember and click Next:Īt this point, Restore.Media will either immediately start repairing your file, or it will ask you to upload a sample file. If you don't know which device was used to record the file, select Generic M4A file (audio only) and leave the text box blank. If you cannot find your device in the list, just select Generic M4A file (audio only) and then enter your device model in the text box manually.

Make sure to select the correct device from the list to increase the likelihood of a successful recovery. Restore.Media has several different recovery algorithms tailored to specific device models. On this step, select the device you used to record the corrupted M4A file.

It may be that the letter got there by mistake.Īfter you click the link in the email, a welcome page will open. If you can't find the confirmation email, check your spam folder. Click the link in the email to start repairing your audio file. But there is a small fee to download the repaired file in its original quality.Īfter submitting the registration form, you will receive a confirmation email. Please note that you can repair M4A files using Restore.Media and get audio preview for free. There is no need to download or install anything – M4A files can be fixed online from a web browser.įirst, sign up for a free account at Restore.Media. Here, at Restore.Media, we have created an online M4A repair tool that works right from your iPhone, Android, Mac, or Windows device.

Repair M4A audio files recorded on any device or application.

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