Eufony Free Audio Converter is a powerful audio converter forAAC M4A WMA WAV OGG CD MP3 conversion. You can convert mobile phone ringtones or songs easily with the converter.

Features:

Convert AAC M4A WMA WAV OGG CD MP3.
High speed and high quality sound conversion.
Build-in aac, m4a, wma, wav, ogg, ape, flac, cd, mp3 audio player.
Resample between different sampling rates, bits per sample, stereo/ mono channels, bitrate and volume.
Full decode and high-quality encode.
Batch conversion.
Convert ringtones for mobile phone.
Auto-rename after conversion.
Explorer-like user interface, very easy to use, no training required.
Highlighting file format with colors in the converter.
No ads or spyware, 100% clean and virus free.

The converter is designed for Windows 32/64bit, apple Mac or Free Linux version is not available.

http://www.softe.net/audio_converter/