I´ve made a new application to encode audio files to mp3, also can extract audio from video viles.
Amp3converter is a free tool to encode any audio files to mp3.
Is easy to use and has a file browser included.
-Encode all kind of audio formats to mp3 file.
-Extract audio from movies to mp3 file.
-Optimized for all devices armv7 and neon extensions.
-Really fast encoding in Android.
-Hi quality and low quality options.
-Tested in many devices and compatible with all Android versions.
This app uses libffmpeg and lamelib to encode and decode.
Bugs are welcome, send mail to developer team.
In Google play and andapponline .