To adjust the audio volume, click the Crop icon before dragging the Volume bar. If you want to trim your audio file to the required 40 seconds for iPhone ringtones, press the Trim, then drag the trimming handles. Alternatively, press the Add Files to upload the MP3 file from local folders. Now drag and drop your MP3 file on the resulting window. Run Wondershare UniConverter and then click the Audio Converter.

Steps to convert MP3 to M4R on Mac or Windows with Wondershare UniConverter: Step 1 Upload MP3 files. Plus, it features a multimedia player for opening all audio/video file formats. As expected, users can edit MP3 before converting by cutting, adjusting the volume level, and setting the output quality. Besides M4R, it also supports outputs such as MP2, M4A, OGG, FLAC, AMR, AIFF, AU, and many others. With this robust app, users can convert MP3 to M4R with lossless quality. Let’s begin with the best MP3 to M4R converter for desktops – Wondershare UniConverter. Step by Step Guide to Convert MP3 to M4R on Windows/Mac Extended Knowledge for MP3 and M4R Format 10 Free Ways to Convert MP3 to M4R Easily So, after reading this tutorial guide, you’ll be able to convert MP3 to M4R online or offline easily with some simple apps. In that case, you’ll need an MP3 to M4R converter online.

For instance, you may need to use your MP3 file as your iPhone’s ringtone. However, sometimes you may want to convert MP3 to M4R. It delivers rich sounds and is compatible with all multimedia players. MP3 is undoubtedly the most popular audio file format.

Mp3 to m4r ringtone converter online