Displaying 20 results from an estimated 100 matches similar to: "Codebook table"
2009 Jan 14
0
[PATCH] Pitch now quantised at the band level, got rid of all the VQ code.
---
libcelt/Makefile.am | 6 +-
libcelt/bands.c | 26 +++++++++-
libcelt/bands.h | 2 +-
libcelt/celt.c | 23 +++-----
libcelt/pgain_table.h | 133 -------------------------------------------------
libcelt/quant_pitch.c | 117 -------------------------------------------
libcelt/quant_pitch.h | 44 ----------------
7 files changed, 37 insertions(+), 314
2000 Dec 20
2
questions re residuevqtrain
I'm trying to understand the residuevqtrain program, and I have some questions
for Monty, Erik, or anyone that understands how it's supposed to work.
I captured TRAIN_RES data from an encoding of a single track (about 4:43),
producing two files, residue_0.vqd (3727 lines, = 3727 points?) and
residue_1.vqd (huge). I then did a run with the parameters from the usage
message
2001 Apr 16
2
Dump utility?
Is there any dump utility that exists for vorbis streams?
What I am intersted in is something that will do a break down like:
How many bits are used for encoding _each_ codebooks, how many bits are
used for the residue, how much is used for the lpc coefficints. A
selective dump of the codebooks themselves would be nice too of course.
I'm wondering if anyone has such a little dump utility.
2008 Nov 22
1
Bug-fix release?
Hi,
I'm not a developer, just a keen observer and hopefully user in the near
future. I'm very excited about CELT's potential for broadcasting. Don't
mind me sitting in the corner.
I was just looking over recent posts and read this one:
http://lists.xiph.org/pipermail/celt-dev/2008-October/000003.html
Are there any plans for a bug-fix release, or is a 0.6 expected soon?
2003 Aug 11
0
lattice codebook
Hi all,
<p>I have read the the source code about codebook generation, but there are some
puzzles:
Where can I get a latticebuild description file?
How does one choose reasonable value0..value n on the second line of the
latticebuild description file(.ql) to latticebuild?
Does the output (xxx.vqi) of the resvqtrain have some relationships to the
latticebuild description file ?
Thank
2006 May 19
0
help - about the vorbis codebook
Hi, All. I am a new one to vorbis codec, I want to write a vorbis decoder, so I read the vorbis specification, but when I read the paragraph about codebook stream format. I am totally confused, can any one give me some detailed information about the codebook. Thanks in advance
He Yang
2006 May 19
0
help - about the vorbis codebook
Hi, All. I am a new one to vorbis codec, I want to write a vorbis decoder, so I read the vorbis specification, but when I read the paragraph about codebook stream format. I am totally confused, can any one give me some detailed information about the codebook. Thanks in advance
He Yang
2018 Mar 23
0
New package: codebook
Dear R users,
codebook (v. 0.5.8) was just released on CRAN.
https://CRAN.R-project.org/package=codebook
It uses the metadata/attributes that some other packages add (item labels,
value labels, labelled missings) to automatically generate a codebook that
is both human- and machine-readable. It combines metadata about the
variables with data summaries. Many people will import this kind of
2006 Feb 08
1
Speex Command line, Changing the LPC order and modifying the codebook
Hi,
can someone help me understand and experiment with Speex in a better way than my knowledge. I want to change the LPC filter order of the Speex algorithm. I think I need to change the LPC order( or lpcSize) in modes.c file. but to make it work I need to modify the codebook also, can someone tell me how to go about changing the codebook entries to support the changed order of prediction.
2006 Jul 23
0
Double codebook
> Kind of interesingly to me, with that plain command-line-call mentioned
> above, double_codebook is turned on.
> Since I haven't found anything in the manpages: how can I turn this off?
> Would you consider turning this off useful?
double_codebook isn't a feature. It's just an internal parameter that
describes how the encoding is done at different bit-rate. In practice,
2006 Sep 11
0
Distances in codebook search
Bj?rn,
I would be very interested in looking at your data and the R file.
Actually, I think a lot of people would. You might want to post it on a
website...
CB
-----Original Message-----
From: speex-dev-bounces@xiph.org [mailto:speex-dev-bounces@xiph.org] On
Behalf Of Bj?rn Thalheim
Sent: Monday, September 11, 2006 4:43 AM
To: speex-dev@xiph.org
Subject: [Speex-dev] Distances in codebook
2008 Mar 26
0
Mixing Codebook?
> ok, lets get to the point. :)
> I would need to mix some audio streams realtime. After googling a little
> I had only two answers:
> 1 - decode,mix,encode
> 2 - lower quality, send streams at the same time and mix at the client.
>
> I didnt like either solutions.
>
> I?m not an audio expert, so I?m just saying something silly. I readed
> that speex uses a fixed
2003 Aug 06
0
Re: [vorbis] question about codebook
Áô©~ªº ¦Ñ¤H wrote:
> Dear Segher
>
> Thanks for your information. Besides, the mechanism of the huffman
> decoding seems can not work in a 24-bit processor if the code length
> exceeds 24, though I have checked several vorbis file from network and
> they are all below 24 bit
True; but you can special case the >24 bit codebook to use
a more "traditional" decoding
2007 Dec 11
1
Query in codebook decoding
Hello Monty,
Sorry for the wrong subject title last time. A little more clarification
needed.
When reading bit-by-bit, there is no MSb/LSb, just 'first bit' and
'last bit'. The Huffman tree is traversed from 'first bit' to last
bit'. This is a conceptual layer above the bitpacker; all you need to
know is what order the bits come out, which happens to be LSb-first.
2003 Aug 12
0
codebook
Hi all,
<p>I have read the the source code about codebook generation, but there are
some puzzles:
Where can I get a latticebuild description file?
How does one choose reasonable value0..value n on the second line of the
latticebuild description file(.ql) to latticebuild?
Does the output (xxx.vqi) of the resvqtrain have some relationships to the
latticebuild description file ?
Where can I
2005 Sep 05
0
Codebook boundaries
Do codebooks always start at byte boundaries, or can they start at arbitrary
bit positions after the first codebook?
2005 Sep 05
1
Codebook verification
Is there a utility available that will dump the codebook information for a
given Vorbis file. This would be useful to compare my own implementation
against as a benchmark. Actually, a utility that would dump all of the
Vorbis metadata would be quite useful as a development tool.
2004 Sep 30
2
Creating a text codebook
Is there a currently existing method in an R package for creating a
codebook from a dataframe? Preferably, I would like to be able to export
to a text file all relevant information.
Thanks,
Harold
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2000 Aug 25
0
huffman codebook
Hello,
I was wondering if it is possible to change the huffman stuff? A different
mapping maybe, or maybe it is not too late to change?
Decoding is much more efficient if:
-- the huffman tree is left-aligned (i.e., longer codes more to the left)
-- and we get the bits msb, not lsb
Oh, and I need some clarification about the lsp: the purpose of the lsp
is to find a low-bitcount approximation of
2018 Mar 23
0
New package: codebook
Dear R users,
codebook (v. 0.5.8) was just released on CRAN.
https://CRAN.R-project.org/package=codebook
It uses the metadata/attributes that some other packages add (item labels,
value labels, labelled missings) to automatically generate a codebook that
is both human- and machine-readable. It combines metadata about the
variables with data summaries. Many people will import this kind of