A free program for Android, by Sylkat.

For converting a multimedia file into audio content, the Audio Converter MP3 is a reliable tool to do the job for you. This application converts various multimedia file formats into any audio file formats, such as MP3, FLAC, WMA, OGG, AAC, 3GP, AC3, APE, WAV, AIFF, and many more.

The application has the following features:

• Encodes all kinds of audio formats
• Extract sound from videos
• With a built-in audio player
• Encodes VBR 
• Fast-processing technology
• Options for sound quality

Audio Converter MP3 is designed to work on most Android devices. Plus, it boasts an intuitive user-interface for easy navigation.

Download and install this app for easy conversion of files.