Sign in
Search speechcoding
Subscribe to speechcoding
speechcoding by Keywords
ACELP | ADPCM | AMBE | AMR | AMR-NB | CELP | Codebook | DTMF | G.723 | G.726 | G.729 | GSM | Interpolation | LPC | LSF | LSP | MELP | PCM | Perceptual | Pitch | PSOL | QCELP | Quantization | SMV | VAD | Vocoder
Sponsor
Discussion Groups
See Also
Discussion Groups | Speech Coding
Technical discussions related to Speech Coding (all itu and other vocoders, ACELP, CELP, AMR, etc)
Method of Finding LPC Coefficients for Digital Filter
alexandra3753 - Jun 28 2009
Hi, I'm doing some speech processing using Linear Predictive Coding, and I'm trying to use MATLAB to find the feedback coefficients, ai, for a digital filter of the form
y[n] =... 
there is error in the theory of line spectrum pair?
tms3...@yahoo.com.cn - May 29 2009
hello,everyone
I'm studying the IEEE article "LINE SPECTRUM PAIR (LSP) AND SPEECH DATA COMPRESSION" by author FRANK K. SOONG and BIING-H WANG JUANG.they proved that the LSP is pra... Need help with MELP
zainmehtab108 - May 12 2009
Hi! I am an undergraduate student and my instructor has assigned me the semester project of implementation of the M.E.L.P. codec on MATLAB. I have no clue as to how it works. Can a... ITUT G729 preprocessing question [2 Articles]
hyee...@yahoo.com.cn - May 5 2009
About ITUT G729, I have two questions.
1. In the processing section of G729 spec, it says to apply a high pass filter with a cut-off frequency of 140 Hz. As we know, the range o... IS-54 VSELP source code and/or codebook parameters
dbga...@gmail.com - May 5 2009
Hi,
I am working on an old two-way radio simulation project running on 8000bps sampling rate using the VSELP vocoder.
Does anyone here still have the IS-54 VSELP source code... MELPe higher than 2400bps
adit...@yahoo.co.in - Mar 25 2009
Hi,
I am working on a MELPe vocoder at a rate higher than 2400bps. I just was trying to increase the number of LPC's to 12. And the code some how introduces a tonal noise into... Speech Analysis using DSP
timu...@gmail.com - Mar 15 2009
Hi every one,
i am working on a project about blind source seperation of mixed speech signals using digital signal processors. An evaluation module, chip and software for progra... Speech Harmonics
paco...@live.com - Mar 9 2009
Hi everyone,
I was developing some code to extract speech harmonics and I wondered why the signal has such harmonics ? what are they multiples of f0 ?
I could not find any pl... LPC spectra estimate [4 Articles]
hyee...@yahoo.com.cn - Feb 23 2009
LPC spectra should correspond with the envelope of DFT spectra.
I plot LPC spectra with matlab. The LPC spectra keep the same shape with the envelope of DFT spectra.
But i... MOS Score - G.726 ADPCM & G.729 CS-ACELP - Voice Quality issues?
raju...@ngc.com - Jan 22 2009
Hi DSP Related members,
I am researching to find out information on the voice quality of codecs used for VoIP communication using networking routers, switches and access devices...