- Extension
- .cvs
- .ra
- Format
- Binary
- Binary
- Category
- Audio
- Audio
- Developer
- Motorola
- RealNetworks
- Description
- Continuously Variable Slope Delta modulation is a voice coding method. It is a delta modulation with variable step size (adaptive delta modulation), first proposed by Greefkes and Riemens in 1970.
- RealPlayer created RA for audio streaming. It makes use of various audio codecs from those that deliver high-fidelity sounds to those that record low bitrate audio data. Radio stations mainly used it for online streaming, but current formats have overthrown it.
- MIME Type
- application/octet-stream
- audio/vnd.rn-realaudio
