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authorJean-Marc Valin <jean-marc.valin@usherbrooke.ca>2011-02-24 19:04:26 +0300
committerJean-Marc Valin <jean-marc.valin@usherbrooke.ca>2011-02-24 19:04:26 +0300
commit81e886ed018d163d18868f94d4439fd886faf58f (patch)
tree9de4dd1a3859dcc5819603b66581dd286ecb1210 /doc
parent19caaddba86b86f3152f455fbcfc90bf39a19fc8 (diff)
anti-collapse
Diffstat (limited to 'doc')
-rw-r--r--doc/draft-ietf-codec-opus.xml10
1 files changed, 8 insertions, 2 deletions
diff --git a/doc/draft-ietf-codec-opus.xml b/doc/draft-ietf-codec-opus.xml
index 033a55c1..fcd98cd2 100644
--- a/doc/draft-ietf-codec-opus.xml
+++ b/doc/draft-ietf-codec-opus.xml
@@ -525,7 +525,7 @@ Insert decoder figure.
<c>dual (*)</c> <c>[1, 1]/2</c><c></c>
<c>fine energy</c> <c><xref target="energy-decoding"/></c><c></c>
<c>residual</c> <c><xref target="PVQ-decoder"/></c><c></c>
-<c>anti-collapse</c><c>[1, 1]/2</c><c>stereo && transient</c>
+<c>anti-collapse</c><c>[1, 1]/2</c><c>transient, 4-8 blocks</c>
<c>finalize</c> <c><xref target="energy-decoding"/></c><c></c>
<postamble>Order of the symbols in the CELT section of the bit-stream</postamble>
</texttable>
@@ -638,7 +638,7 @@ masking and tone-vs-noise characteristics. While this is not an
optimal bit allocation, it provides good results without requiring the
transmission of any allocation information. Additionally, the encoder
is able to signal alterations to the implicit allocation via
-two means: There is an entropy coded tilt parameter can be used to tilt the
+two means: There is an entropy coded trim parameter can be used to tilt the
allocation to favor low or high frequencies, and there is a boost parameter
which can be used to shift large amounts of additional precision into
individual bands.
@@ -737,6 +737,12 @@ which is the same function as used in the encoder.
</section>
+<section anchor="anti-collapse" title="Anti-collapse processing">
+<t>
+When the frame has the transient bit set...
+</t>
+</section>
+
<section anchor="denormalization" title="Denormalization">
<t>
Just like each band was normalized in the encoder, the last step of the decoder before