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Alexander Traud
Opus
Commits
fb0bd20e
Commit
fb0bd20e
authored
16 years ago
by
Jean-Marc Valin
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doc/ietf/draft-valin-celt-codec.xml
+12
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12 additions, 2 deletions
doc/ietf/draft-valin-celt-codec.xml
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doc/ietf/draft-valin-celt-codec.xml
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View file @
fb0bd20e
...
...
@@ -118,6 +118,9 @@ aliasing calcellation.</t>
alpha_p=0.8. The inverse of the pre-emphasis is applied at the decoder.
</t>
<section
anchor=
"Range Coder"
title=
"Range Coder"
>
<t>
derf?
</t>
</section>
<section
anchor=
"Forward MDCT"
title=
"Forward MDCT"
>
...
...
@@ -203,10 +206,14 @@ transmission of any allocation information.
<section
anchor=
"Spherical Vector Quantization"
title=
"Spherical Vector Quantization"
>
<t>
CELT uses a Pyramid Vector Quantization (PVQ)
<xref
target=
"PVQ"
></xref>
codebook for quantising the details of the spectrum in each band that have not
been predicted by the pitch predictor. When no pitch is encoded, ...
been predicted by the pitch predictor. The PVQ codebook consists of all combinations
of K pulses signed in a vector of N samples.
</t>
<section
anchor=
"Index Encoding"
title=
"Index Encoding"
>
<t>
derf?
</t>
</section>
</section>
...
...
@@ -220,10 +227,13 @@ been predicted by the pitch predictor. When no pitch is encoded, ...
<section
anchor=
"CELT Decoder"
title=
"CELT Decoder"
>
<t>
Some more text
Like for most audio codecs, the CELT decoder is less complex than the encoder.
</t>
<section
anchor=
"Range Decoder"
title=
"Range Decoder"
>
<t>
derf?
</t>
</section>
<section
anchor=
"Energy Envelope Decoding"
title=
"Energy Envelope Decoding"
>
...
...
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