[vorbis] mp3pro bitrates

Monty xiphmont at xiph.org
Thu Jun 28 22:53:58 PDT 2001



On Thu, Jun 28, 2001 at 01:51:45PM -0600, Anthony Arcieri wrote:
> Sort of off topic, but I was wondering about how the SBR data factors into
> an mp3pro bitrate.  If you encode a "64kbps" mp3pro stream, I'm guessing
> that 64kbps would include the SBR data.  So, when played in a normal MP3
> player, would a 64kbps mp3pro stream actually sound worse than a 64kbps
> MP3 stream?

A 64kbps MP3pro stream appears to be a 56k normal mp3 with SBR hints
hidden in additional ancilliary data fields.

Monty

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