RK Audio

File Format
Name	RK Audio
Ontology	Electronic File Formats Audio and Music RK Audio
Extension(s)	.rka
Released	~1999

RK Audio is a proprietary lossless and lossy audio file format created by RK Software (later M Software). It is related to the RK compression format.

Identification

Files apparently start with ASCII "RKA".

Software

• RK Audio v1.07 (for Windows console, includes Winamp plugin)
• MediaInfo - displays technical and tag data for media files
• FFmpeg

Sample files

• An example RK Audio file
• dexvert samples — audio/rkAudio

Links

• RK Software - RK Audio page (Wayback Machine capture 2005-02-07)
• Info for RKAU files. A patch for MediaInfo adding support for RK Audio files.