Each music stream is transcoded one time by Avaya Aura® MS. The transcoded stream is shared across all sessions using the same codec. The media server uses the G.722 codec to encode the audio. If additional codecs are required, for example, G.729 or OPUS NB, then additional transcode operations occur on demand.

The media server provides high levels of efficiency for RSS providers by caching transcoded versions of the files received from the stream. After a file is transcoded, little CPU is required to stream the music from the media server.

Streaming providers, like HTTP/MP3 and HLS, require additional CPU resources because the media server transcodes them in real-time.