Displaying 20 results from an estimated 5000 matches similar to: "audio data encoding in FLAC: how complex ?"
2011 Feb 28
1
changing origin and plotting complex graphs
I have data on area under cultivation of a crops for 17 states..I need a
scatter plot to be made for the following assignment
Read the data file /Data/ep602/areas.csv, and make a scatter plot that
displays area under rice in 1960s on the x axis, and percentage change in
area under rice between 1960 and 1990 on the y axis. Let origin of the plot
be at (50 per cent of area of rice in India as a
2012 Jun 14
3
flac -- exhaustive model search vs. -A <*>?
"Linda A. Walsh" <flac at tlinx.org> wrote:
> what does the exhaustive model search do?
I am not an expert on the guts of FLAC, but
there is some information about this at:
http://flac.sourceforge.net/documentation_format_overview.html
and scroll down to "MODELING".
> Does it try all of the functions listed under "-A" to find the 'best',
>
2017 Apr 18
1
FLAC decoding
hi,
I want to know more about FLAC decoding, rice coding and LPC, more details or examples.
I view https://xiph.org/flac/format.html. But only know some theory which is very abstract.
what is the table for FLAC decoding?
thank all.
M201672771 at hust.edu.cn
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2014 Jan 06
2
Exact FLAC subset constraints
I mean that the first statement [Subset streams must use one of
192/576/1152/2304/4608/256/512/1024/2048/4096 (and 8192/16384 if the
sample rate is >48kHz).] published on
https://www.xiph.org/flac/documentation_tools_flac.html#flac_options_blocksize
page IS NOT EQUAL to second statement [The blocksize bits in the frame
header must be 0001-1110. The blocksize must be <=16384; if the sample
2004 Sep 10
3
Improving on Rice coding
Hello,
I am the author of the Bonk audio compression program... i've just been
looking at your comparrison table, and i noticed bonk gets marginally
better compression than Flac on some files (actually i was
rather surprised to see bonk on the list at all, it's not exactly high
profile :-) ).
Bonk in lossless mode is a pretty naive implementation of a predictive
coder, so the main
2004 Sep 10
1
Rice coding parameter
Date: Sun, 19 Oct 2003 00:59:22 +0200
> On Sat, Oct 18, 2003 at 07:21:08PM +0000, Dan Stowell wrote:
> > I asked a few questions about the flac format a couple of weeks
ago.
> > One more (if you don't mind) about the Rice coding. The Rice
> > parameter "k" can't be zero (unless I'm mistaken), yet the FLAC spec
> > says the Rice parameter can range
2004 Sep 01
3
Imputing missing values
Dear all,
Apologies for this beginner's question. I have a
variable Price, which is associated with factors
Season and Crop, each of which have several levels.
The Price variable contains missing values (NA), which
I want to substitute by the mean of the remaining
(non-NA) Price values of the same Season-Crop
combination of levels.
Price Crop Season
10 Rice Summer
12
2009 Nov 01
1
package lme4
Hi R Users,
When I use package lme4 for mixed model analysis, I can't distinguish
the significant and insignificant variables from all random independent
variables.
Here is my data and result:
Data:
Rice<-data.frame(Yield=c(8,7,4,9,7,6,9,8,8,8,7,5,9,9,5,7,7,8,8,8,4,8,6,4,8,8,9),
Variety=rep(rep(c("A1","A2","A3"),each=3),3),
2015 Oct 01
3
Supporting 32 bit data
Op 01-10-15 om 18:14 schreef lvqcl:
> Currently libFLAC stores residual signal as 32-bit signed int. And there
> are the following comments in stream_encoder.c:
The residual is stored as a Golomb/Rice code. As far as I know,
that is not limited to 32-bit in the format itself, only in the
implementation.
However, there are two residual coding methods now: rice and
rice2. rice2 was added
2010 Apr 23
2
Ogg Index A-mod
I've been looking over Benjamin Schwartz's Skeleton A-mod proposal. I've
been pretty busy with other projects over the past few months, so
haven't had a chance to look at Ogg indexing until now...
In general, I think Benjamin's ideas are sound, they're improvements,
and I'm open to being convinced to take them in the next index version.
We may as well get the index
2004 Sep 10
1
Rice coding parameter
Hi,
I asked a few questions about the flac format a couple of weeks ago. One more (if you don't mind) about the Rice coding. The Rice parameter "k" can't be zero (unless I'm mistaken), yet the FLAC spec says the Rice parameter can range from 0 to 15.
I guessed, and tried adding one before using the parameter (i.e. assuming the range was really 1 to 16), and that didn't
2013 Apr 19
5
how to subtotal by rows
Dear R-users,
I have a dataset as like below, and I want to subtotal the values of rice,wheat and maize by year for each fid.
fid year rice wheat maize
------------------------------------------------
1 1995 5 NA NA
1 1995 NA 3 NA
1 1995 NA NA 2
1 1996 4 NA NA
1
2008 Apr 24
1
partitioned_rice2 method
I have a doubt reg. RESIDUAL_CODING_METHOD_PARTITIONED_RICE2
http://flac.sourceforge.net/format.html#partitioned_rice2 tells that
5 bits are used to specify the Rice parameter.
And "Escape code, meaning the partition is in unencoded binary form
using n bits per sample; n follows as a 5-bit number"
Question:
What is the use of the "escape code" if we have to specify the Rice
2009 Oct 12
1
package nlme
Hi R Users, When I use package nlme for linear model with random
effects, there exists errors and I don't know the data structure of lme.
Here is my data:
Rice<-data.frame(Yield=c(8,7,4,9,7,6,9,8,8,8,7,5,9,9,5,7,7,8,8,8,4,8,6,4,8,8,9),
Variety=rep(rep(c("A1","A2","A3"),each=3),3),
2004 Sep 10
1
Questions about FLAC format from a java coder...
Hi,
I'm trying to write a FLAC decoder for my Java audio app. Can I ask a couple of questions to this list about the format? I think there are a couple of things not-quite-mentioned in the official spec.
RICE CODING: Which order are Rice-coded numbers stored in? (a) [sign-bit][low-order bits]["k" zeroes][1]
(b) [sign-bit]["k" zeroes][1][low-order bits]
(c)
2011 Feb 28
1
plotting, graph, everything
I have this assignment to do and after ten hours of constant trying my eyes
ache and i give up..
all i'm able to get is this plot
please help me
these are the commands i have used till now
read.table(file.choose(), sep=";", header=T)
read.table(file.choose(), sep=";", header=T)->areas
melt(areas,id=c("Year","State"),m=c("Rice"))->
2014 Jan 08
1
Why Rice order in "--best" switch is limited to 6?
No, FFMPEG uses its own FLAC encoder/decoder, based on Flake source
code, that based on FLAC reference encoder/decoder source code.
Yes, I agree that "optimal"? values for reference encoder/decoder may
differ "optimal"? values for FFMPEG's encoder/decoder.
But we're talking about the "highest reasonable" values, not "optimal".
>>>>>
2006 Jul 11
3
Building a Rice Encoder/Decoder from FLAC
Hi all,
I am interested in building a stand alone Rice Encoder/Decoder, using FLAC
source code as a starting point. I've read the theory behind it, and I am
very interested in info theory. However, I am struggling with how exactly
I would implement the theory in code. I'm a newbie to computer science
(only 1 year experience). I have read the format and documentation links on
the FLAC
2017 Oct 27
3
My function and NA Values Problem
Dear R Staff
My working file is in the annex. "g1.csv"
I have only 2 columns. Rice and coke.
I try to execute following(below) function, but do not work.
Because "Coke" value has NA values.
I try to add "na.rm=True" to the function but do not work
How can I solve this problem with this function or another algorithm?
(Note: I have normally 450 columns)
Sincerely