OPUS Codec for Audition?

I'm currently trying to use the opus .ogg format in Adobe Audition CC 2017 but it gives me the error "AmioLSF plug in could not open the file, Code 17, File contains an unimplemented data format."

We're a radio station and get voice memos sent in through whatsapp and they're encoded in the opus .ogg format. We need to find a way to edit them on the fly and not convert them first.

Any help would be appreciated!!

Thanks,

Hayden