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Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)
LPC method [2 Articles]
Iman Rasti - Apr 5 2010
Dears :
Hi
Is there any body who can introduce me a simple and understandable document
about speech coding ?
kindest Regards
Iman Rasti
Email:i...@gmai.com
Tel: ... 
G726 codec support with .wav files
Aditi Akula - Feb 3 2010
Hi All,
I want to play G726 (16 kbps) encoded data with Windows Media Player (WMP).
I have modified the normal wave header to allow for the G726 code (0x0045).
But it does not... bandwidth expansion
sati...@gmail.com - Jan 10 2010
hi every one,
can any one explain how bandwidh expands
if poles moves towards origin.
regards,
skcdsp
... G726 bit-exact bug SOLVED, question about 14-bit range
Aditi Akula - Dec 21 2009
Hi everyone,
I have solved the bit -exact bug in my codeby adding this small piece of
code.
I have avoided inverting negative numbers which is a part of G726_compress
before... G726 bit-exact bug SOLVED, question about 14-bit range
Aditi Akula - Dec 18 2009
Hi everyone,
I have solved the bit -exact bug in my code.
But now I have another problem with the input range to the encoder.
My encoder can take values only between 0 & 8191 ... ITU G726 code not working for speech files [4 Articles]
Aditi Akula - Dec 15 2009
Hi Everyone,
I am using the G726 code from ITU (g726.c, g726.h, cvt_h_b.c, etc) for 16
kbps an using it as a Visual C++ project. I have tested the code using the
test vectors ... Reg G726 test vector verification
Aditi Akula - Dec 9 2009
Hi everyone,
I am working on G726. I have the source code in C (from Sun Microsystems).
I am trying to test the algorithm using the ITU test vectors.
I have converted the NR... CVSD Decoder filter [3 Articles]
Aditi Akula - Nov 24 2009
Hi,
I am working on a CVSD code that I found online on Koders.com. I have a few
questions.
The CVSD code that I am working on is a 16kbps code.
1) In the decoder side of th... Retrive frame energy from encoded G.729
nir....@gmail.com - Nov 23 2009
Hi,
I saw that the G.729 has 3+3+4+4 bit to 4 type of gains (Codebook gains)
does these bit can serve as an indication to frame energy?
thanks,
... problem with EVRC-B fixed code [6 Articles]
"G. Lakshmi Harika" - Sep 13 2009
We have downloaded version 4.4 EVRC-B fixed point code from
ftp://ftp.3gpp2.org/TSGC/Incoming/SWG11/evrc_rel-C_mps_software/
While running the decoder in DTX (9_3.o22 and 5_8....