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Discussion Groups | Speech Coding
Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)
G.723.1, the parameters
setumi71 - Jan 18 2004
Hi,
I am studying the codec G.723.1 (ITU-T Recommendation).
I would like to know the precise meaning of the following
parameters:
adaptive code book lags (AcLg ... 
Can Huffmann coding be directly applied to speech samples ? [4 Articles]
Jaydeep Inamdar - Jan 16 2004
Hello all,
Can you plz tell whether Huffmann Coding (or adaptive Huffmann)
method be directly applied to speech samples ?
If yes, how much it helps to reduce b... BSAC
Raj Baretto - Jan 16 2004
Hi,
Can anyone give me a clue how to optimise the Cumulative symbol freqencies
decoding part in BSAC. As there are two looping there one which i have to
compare t... the parameters of G.723.1
setumi71 - Jan 15 2004
Hi,
I have downloaded c-code for the codec G.723.1.
The parameters of subframes:
/*subframe coded parameters */
typedef struct {
Word16 AcLg ; /* adaptive ... Zero Excitation
B James - Jan 12 2004
In a CELP coder given a set of LPC coeff, without any other initial conditions
How can we generate (s[n]-r[n]), using zero excitation.
(or how to extract informatio... AMR IF1 Streams
simha j - Jan 9 2004
Hi all,
Can anyone in the group share the AMR IF1 test
vectors?
we badly need this for testing our modules.
Thanks & regards
Simha
__________... AMR codec (ETSI version v.s. 3GPP version) [4 Articles]
Murphy Chen - Jan 9 2004
ETSI has a AMR reference code.
3GPP also has AMR reference code for both fix-point and floating
point.
What's the difference between them?
Which version is p... LPC to Autocorrelation Conversion
rahul_parthasarthy - Dec 31 2003
Hello Everybody,
I want to write a program in C/C++ which estimates the
autocorrelation values from the Linear Prediction Coefficients(LPC).
I would be high... AMBE
yuri_krivtsov - Dec 29 2003
Hi there!
I would be grateful if anybody gives me some links or information
concerning AMBE vocoders (more deeper than in internet).
By th... c-code G.723.1 - to find the parameters
setumi71 - Dec 26 2003
Hi,
I have downloaded c-code for the codec G.723.1 (fixed point).
I don't absolutely succeed in finding in the code the variables
related to the LSP parameters, g...