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Discussion Groups | Speech Coding

Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)

Search Results for "lsf"

  

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About Mean-removed LSF vector and quantization of LSF coefficient in CELP coding

cherrymata - Nov 12 2003
Dear All, I have some difficulties in understanding CELP coding process, one of them is about Mean-removed LSF vector and quantization of LSF coefficient (ETSI... About Mean-removed LSF vector and quantization of LSF coefficient in CELP coding

LSF in g.723.1   [2 Articles]

milamine - Sep 4 2003
hi all i'm working on quantizing the LSF can i use the LSF generated by the VOCODER g.723.1? and if so how can i get them. Thx a lot. ... LSF in g.723.1

speech classification from LSF parameters

ee41gi - Aug 1 2007
How can i do classification of speech from the LSF parameteres given from a split-band vocoder? I need to classify the speech into voiced unvoiced and mixed excitation.I did a ... speech classification from LSF parameters

LSF quantizer   [2 Articles]

#ARIJIT BISWAS# - Jan 16 2008
Hi all! Does anyone know what=C2=92s the latest & greatest LSF quantizer available = for wideband speech coding? :-) For example, what=C2=92s the minimum number bits/frame req... LSF quantizer

MBE

- Jun 20 2002
Hello, I am looking for information about phase distribution in my vocoder (Matlab model of some kind of MBE vocoder, but some parameters are detected by Analyse-... MBE

About MSVQ design codebook

mouloud Djamah - Jul 28 2008
Hi =20 I have questions and I hope that someone will reply me.=20 - I Know that for SVQ (Split vector quantization) design codebook for LSF = (line spectral frequencies) quant... About MSVQ design codebook

LPC to LSF Source Code   [3 Articles]

ray....@gmail.com - Feb 18 2008
Hello; I was wondering if anyone would be willing to share or direct me towards some Java or C code on how to convert from Linear Prediction Coefficients to Line Spectral Freque... LPC to LSF Source Code

Split matrix and split vector quantization in CELP

mata mata - Aug 13 2003
Dear all, I have builded matlab functions over split matrix (SMQ) and split vector quantization (SVQ) in CELP but I am not so sure about the results.... woul... Split matrix and split vector quantization in CELP

Quantization of LSP /G.729   [3 Articles]

wnit...@yahoo.com - Aug 22 2006
hi all, G.729 recommendation states:-to predict the values of LSF a 4th oreder MA is used.Two predictions are possible .the encoder chooses which one to use and indices it... Quantization of LSP /G.729

line spectral frequencies

auliasn - Apr 28 2003
dear all i have some difficulties with some algorithms. could anyone explain to me about the LPC and LSF (line spectral frequencies) algorithms that are being ... line spectral frequencies

Moving average Prediction Filter - G.729

pchakre - Jan 24 2002
Hello, In the Section 3.2.4 - Quantization of the LSP coefficients (Pg. 12) in ITU-T Recommendation G.729 documentation, we have to use two switched 4th order MA ... Moving average Prediction Filter - G.729

MPEG-2 layer-3 multichannel decoder   [3 Articles]

pai_raviin - Sep 1 2005
Hi, I am trying to implement the MPEG-2 layer-3 multichannel decoder, backward compatible with MPEG-1 layer-3. I am new to this work and I don't have any source code t... MPEG-2 layer-3 multichannel decoder

Bit-rate: wideband & narrowband

#ARIJIT BISWAS# - Jun 26 2006
Dear List: I was reading the book, "Speech Coding and Synthesis" by Kleijn & Paliwal. In page 445, from the table we see that for scalar quantization of the reflection coeffici... Bit-rate: wideband & narrowband

Re: On G.729 Perceptual weighting and Gain Quantisation

Tim Thorpe - Nov 10 2001
From: "Thenral p" <> wrote: >I am working on G.729 and when going thru' the C code I came across the >folowing: >In perceptual weighting filter to find the ... Re: On G.729 Perceptual weighting and Gain Quantisation

Re: AMR LSP quantization

Senthil Kumar - Jun 18 2002
Hi! I attached here with the basics of LSF ..... It may be useful... regards senthil Kumar Hellosoft ----- Original Message ----- From: subrata chatter... Re: AMR LSP quantization

Re: G.729 Decoder Output

ranjeet gupta - Aug 10 2006
Hi Bineesh / Satish Bineesh check always the encoded data, if the encoded data you are getiing the 1/8th size of the passed data then you can assume that data is encoded, ... Re: G.729 Decoder Output