A free app for Android, by App Camera Inc..
MP3 Converter is an easy-to-use application for converting audio files from one format to another. It supports MP3, AAC, OGG, WAV, and more.
With this tool, you can configure the output format and set the bit rate, channel, and audio start and duration. It is completely based on the input file, so you can easily use your existing music and just convert it.
It also has a user-friendly interface, which makes it easy to use.
It supports all ARM (CPU) devices.
The software uses the FFmpeg library, which is under the GNU General Public License (GPL) license.