Convert M4R to OGG

Converting iPhone Ringtone Files directly to Ogg Vorbis Audio Files (.m4r to .ogg conversion) is possible and fairly simple. M4R ringtones are essentially short MP4 audio files, which means that you can use any tool that also supports converting to MP4, since you can simply rename your M4R file to MP4.

Decent audio editors and converters, such as AVS Audio Converter or Xilisoft iPhone Ringtone Maker, will still allow users to import M4R ringtones and re-save them in OGG format.