Displaying 20 results from an estimated 2000 matches similar to: "Matlab implementation"
2003 Mar 12
2
encoder block diagram
I've made a block diagram of the encoder because I tried to find out, how it works
http://stoffke.freeshell.65535.net/ogg/block.html
Although there are specifiation docs, that give very
detailed information about single aspects of the encoding (or decoding) ,
I'm missing documenations that give a more general overview,
about how the encoder works.
(Vorbis Illuminated seems a bit
2003 Mar 14
0
encoder block diagram
I've made block diagram of the encoder because I tried to find out, how it works
http://stoffke.freeshell.65535.net/ogg/block.html
Although there are specifiation docs, that give very
detailed information about single aspects of the encoding (or decoding) ,
I'm missing documenations that give a more general overview,
about how the encoder works.
(Vorbis Illuminated seems a bit outdated,
2006 Mar 27
2
Speex for sampling freq >48KHz
Hi,
I have one doubt again, that is Vorbis use DCT/MDCT based algorithm and also use psychoacoustic model so this is lossy codec. And I dont think it ca regenerate a better matching waveform than speex.
Then there comes FLAC which is the perfect answer to my question, I suppose. But my concern is this that FLAC use simple prediction algorithm and doesnt use any CELP based algo which could have
2002 Nov 26
1
floor curve question (whitening filter)
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<HEAD><META http-equiv=Content-Type content="text/html; charset=iso-8859-1"></HEAD>
<BODY bgColor=#ffffff><FONT face="verdana,arial" size="2">
Hi there,</P>
one step in the encoding process (if I got it right), would becomputing a "floor
2018 Apr 04
2
Plot data in sequence
Hi r-users,
I would like to draw line plots. However, the plot starts from 11121 data
and plot data ENTRY last in the plot.
Here is the code and data.
datn <- read.table(header=TRUE, text='
LEVEL STATUS CGPA
DIPLOMA ENTRY 3.32
DIPLOMA 11121 2.91
DIPLOMA 11122 2.90
DIPLOMA 12131 2.89
DIPLOMA 12132 2.89
DIPLOMA 13141 2.93
DIPLOMA 13142 2.96
DIPLOMA 14151 2.76
DIPLOMA 14152 2.73
STPM
2018 Apr 04
0
Plot data in sequence
Hi,
Thanks for the reproducible example.
Looking at
str(datn)
would give you a clue.
STATUS is a factor because it contains character values. Factor levels
by default are alphabetical with numbers first, but you can change
those.
> str(datn)
'data.frame': 36 obs. of 3 variables:
$ LEVEL : Factor w/ 4 levels "DIPLOMA","MATRIC",..: 1 1 1 1 1 1 1 1 1 4 ...
$
2006 Apr 20
1
Ogg Vorbis questions
Hi,
I'm currently working on a paper describing Ogg Vorbis. It is not finished
yet. Mostly the decoder is being described. If you have any comments, please
send them to me. See:
http://www.turbocat.net/~hselasky/math/vorbis/files/
Then I have a question about the function "bark_noise_hybridmp()" which is
used in the encoder. Can someone describe what the function does in
2006 Mar 27
1
Speex for sampling freq >48KHz
Hi,
I chose speex initially because i had some work in VQ on speex i.e. modifying split VQ to GMM based parametric VQ and I thought If I train the GMM based VQ codebooks with audio signal and then do audio coding with speex, I probably get a better(smaller) residual signal even with speex. But I couldnt get that.
I was trying to get a lossless bitstream by MUXing the speex-bitstream and the
2002 Jul 09
1
Vorbis Block Diagram
Hi,
I have looked through the documentation available from the downloads and the
web and haven't yet come across a block diagram which shows exactly how the
process of going from a .wav file to a .ogg file works. I suspect it is the
same as the mp3 process (with a different psychoacoustic model). I found
this document:
2006 Apr 19
2
[LLVMdev] glibc to LLVM port
Hi guys,
on the webpages of your project i have found, that you are
trying to port glibc to LLVM (sounds interesting). I am student of Faculty
of Informatics in Brno, and currently i am trying to search a theme for my
diploma thesis. Do you think that this one could have the scope to
cover (serve) as the diploma work.
Thanks
Regards
iankko
--- reklama
2001 Sep 05
2
Understanding of Vorbis coder
Hi
I have gone through the document available in the net regarding the
Vorbis encoder /Decoder.
Based on that i have prepared a understanding document on the
encoder/decoder block. I would like to
know whether my understanding of the coder is OK. If there are any
other additional block /information pl. provide me
with the same.
Thanks and regards
S.Padmashri
<HR NOSHADE>
<UL>
2011 Apr 25
3
Possibility of Incorporating a psychoacoustic model in CELT
Good Morning;
Iam asking whether any one have knowledge about is it possiple to incorporate a
psycoacoustic model?(specifically?I mean ?MPEG-1 psychoacoustic model 1) into
the CELT codec(any version even older versions of the coder,?no matter) Iam
using version 0.3.2.
Kind Regards;
Osama.
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1999 Nov 19
2
Impulses
After playing with the vorbis code for a while and doing tons of hacks and
analysis on it, I've found it to perform very poorly with impulse signals.
The MDCT seems to cause lots of spreading, and it seems to result in much
worse impulse performance then mp3.
What is the current plan on handling this? Will a smart quantizer be able
to avoid it?
I've been looking at various ways of
2006 Feb 10
1
[LLVMdev] some questions and llvm on mac-intel
hi all,
my name is Jakob. I am studying computer science in
Austria. Currently I am working on an aspect oriented
dynamic monitoring framework based on LLVM as a
diploma thesis. It is a very fascinating framework.
Is there some research funding for LLVM development
somewhere? Sadly there is not much for me todo with
LLVM in my University here in Austria after my diploma
thesis. Are there
2001 Nov 01
1
Lossy Audio Compression Research
Hello everyone,
I'm a student at the Universtiy of Delaware, and will be soon starting
some research on the effects of lossy audio compression on speech sounds. I
will be preforming test with both mp3 and vorbis.
First of all, if I use the '--ogg' switch to lame, does lame use GPSYCHO
to encode the wave, or some other psychoacoustic model (perhaps one designed for
1999 Aug 15
1
Vorbis transform description
OK, into the nitty-gritty, albeit a high-level version. If it sounds
like I'm glossing important details, you're right. This discusses
only the basic DSP; precise coding, framing, sync, etc, will be in
another mail.
Vorbis is a hybrid transform domain general purpose audio encoder,
like MPEG in some respects (it is rooted in much of the same basic
theory). For the most part, the
2005 Jun 30
3
Delay
Hello.
I'm programing a tool for ip telephony in hifi quality (diploma) ...
I want to know what coding delay ogg produces.
Are there low delay variantes?
Can anyone help me?
Thanks
2002 Jul 08
1
psychoacoustic model description
Hello,
Tell me please where I can find detailed description of the Vorbis psychoacoustic model?
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2003 Dec 06
1
Diploma zonder studie op basis van EVC
[image001.gif]
Diploma's en titels zonder studie op basis van eerder verworven
competenties
Geachte heer of mevrouw,
Graag willen wij u attenderen op onze unieke dienstverlening. Wellicht
dat er voor u mogelijkheden zijn om zonder studie op basis van eerder
verworven competenties via een External Programme
in het bezit te komen van een academische Bachelor, Master
2006 Mar 27
0
Speex for sampling freq >48KHz
> I have one doubt again, that is Vorbis use DCT/MDCT based algorithm
> and also use psychoacoustic model so this is lossy codec.
Speex is also a lossy codec.
> And I dont think it ca regenerate a better matching waveform than
> speex.
At bit-rates above 32 kbps, Vorbis tends to produce better results than
Speex, even for speech. The only advantages of Speex over Vorbis at
these