ref: f1b5006d8c0b4fc1c136bb485d8ae3b100f69dc3
parent: a76a5e8f0c8797e902924a8f186800707038aa2d
author: Jean-Marc Valin <[email protected]>
date: Thu Jun 11 13:40:37 EDT 2009
ietf doc: fine energy
--- a/doc/ietf/draft-valin-celt-codec.xml
+++ b/doc/ietf/draft-valin-celt-codec.xml
@@ -321,7 +321,14 @@
<section anchor="fine-energy" title="Fine energy quantization">
<t>
-After the coarse
+After the coarse energy quantization and encoding, the bit allocation is computed
+(<xref target="allocation"></xref>) and the number of bits to use for refining the energy quantization is determined for each band. Let B_i be the number of fine energy bits
+for band i, the refement is an integer f in the range [0,2^B_i-1]. The mapping between f
+and the correction applied to the corse energy is equal to (f+1/2)/2^B_i - 1/2.
+</t>
+
+<t>
+Remaining bits encoded at the end
</t>
</section> <!-- fine energy -->