Audio Encoder Decoder ActiveX (OCX) - Version 1.0 Audio Encoder Decoder ActiveX 1.0 is a collection of audio converter OCXs (ActiveX) for software developers. 1) Audio Converter ActiveX (OCX) with the ability to convert MP3, WMA, WAV, OGG and APE from one format to another. 2) ACM Converter ActiveX (OCX) to convert all WAV ACM format from one format to another. 3) CDA Converter ActiveX (OCX) to convert CDA tracks from an audio CD to MP3, WMA, WAV, OGG and APE audio files.