Happiness Midi M4A to AMR Copier - Version 1.3.63 Happiness Midi M4A to AMR Copier allows you to convert audio/video files between WAV, OGG Vorbis, MP3, MP2, WMA, AAC.Using Audio Converter you can convert audio/video files from one format to another, specify frequency, number of channels, bitrate and other parameters of your output files before you convert your audio files. Happiness Midi M4A to AMR Copier - The application has very user-friendly interface.