Click File in the menu bar at the top. Click Add File to Library. Select the file you want to convert. Click Open.

Since M4A and M4R files use the same AAC audio encoding, all you need to do to convert the file type is to change the file extension. The “. m4r” file extension tells iTunes that this is a ringtone audio file. [1] X Research source If you do not see the file extension at the end of the file name, click View at the top of File Explorer. Then click the checkbox next to “File name extensions”.

Since M4A and M4R files use the same AAC audio encoding, all you need to do to convert the file type is to change the file extension. The “. m4r” file extension tells iTunes that this is a ringtone audio file. [1] X Research source If you do not see the file extension at the end of the file name, click View at the top of File Explorer. Then click the checkbox next to “File name extensions”.

Since M4A and M4R files use the same AAC audio encoding, all you need to do to convert the file type is to change the file extension. The “. m4r” file extension tells iTunes that this is a ringtone audio file. [1] X Research source If you do not see the file extension at the end of the file name, click View at the top of File Explorer. Then click the checkbox next to “File name extensions”.

Go to https://www. audacityteam. org/download/ Click Audacity for Windows and wait for the file to download. Open the Audacity installation file in your web browser or Downloads folder. Select your language and click Ok. Click Next on the Welcome screen. Read the information and click Next. Click Browse to select and install location (optional). Select an install location and click Next. Check or uncheck “Create a desktop shortcut” and click Next. Click Install. Read the information and click Next. Click Finish.

Go to https://lame. buanzo. org/ffmpeg64audacity. php in a web browser. Scroll down and click FFmpeg vX. X. X INSTALLER (. EXE) below “Windows (R) FFmpeg INSTALLER. " Open the installation file in your web browser or Downloads folder. Click Yes. Check “I accept the agreement” and click Next. Click Browse to select an installation location (optional) and click Next. Click Install. Click Finish.

Click File. Click Open. Select an MP3 file. Click Open.

You can zoom in to get trim the audio clip more precisely. To do so, click the magnifying glass icon at the top. Click the audio clip to zoom in. Hold Shift and click to zoom out.

Click File. Click Export. Click Export Audio. Select “M4A (AAC) Files (FFmpeg)” next to “Save as Type. " Click Save. Edit the audio information as needed. Click Ok.

Click View in the menu bar at the top. Ensure the checkbox next to “File name extensions” is checked.

Right-click the file. Click Rename”. Place the text cursor at the end of “. m4a. " Delete the “. m4a” extension and replace it with a “. m4r. " Click Yes to confirm you want to change the file extension.

Change audio frequency: If you want to change the audio frequency, use the drop-down menu next to “Change audio frequency” to select what Hz you want to use. Change audio channels: If you want to change the audio channels, use the drop-down menu next to “Change audio channels” to select “Mono” (one channel/speaker) or “Stereo” (two channels/speakers). Trim audio: If you only want to convert a section of the MP3 file, enter the time you want it to start in the first box below “Trim audio. " Then enter the time where you want it to stop in the second box. Normalize audio: If you want to equalize the audio volume across the entire audio file, click the checkbox next to “Normalize audio. " Select audio codec: If you want to change the audio codec, use the drop-down menu below “Select audio codec” to select a new audio codec. You can select “aac” or “alac”.

If your file does not start downloading automatically, click the green button that says Download.

For Zamzar free users, you can upload up to 5 MP3 files per time. The maximum file size is 50MB.