[Vorbis] Floor1 X axis frequency units?

[Gregory Maxwell]

On Sun, Nov 8, 2009 at 5:22 PM, Jesús Díaz Vico
<jesus.diaz.vico at gmail.com> wrote:
> I was printing some Floor1 X values from a test audio file, and the values
> that I've obtained look mostly like the following:
>
> [23,33,46,65,79,93,111,130,158,186,220,260,312,372,464,556,750,1024] => For
> long blocks
> [8,16,33,70,128] => For short blocks
>
> Obviously they are not in Hz, so, could someone please tell me what is the
> unit used? In the specs it's said that the Floor1 X axis uses a linear
> frequency range, but I haven't been able to find or figure out the units,
> may be I have been looking in the wrong places.

This would be representing DCT bins. The highest position is the
nyquist frequency (1/2 the sampling rate).