WAV MP3 Converter for to mp4 - Version 4.39 WAV MP3 Converter converts WAV to MP3 and MP3 to WAV. It can also re-sample WAV and MP3 file.WAV MP3 Converter can encode MP3 or WAV with different encoding parameters (like sample frequency, bit rate and channels). This means it can convert a large-size MP3 or WAV file to a small-size one.WAV MP3 Converter supports batch conversion. You can add multiple MP3/WAV files and convert them at a time. You can also add a folder or drag and drop several MP3/WAV files and folders onto main window, then it will search all MP3 and WAV files and add to conversion list.