hi, i completed my M.tech in DSP. I did my project on " Implementation of Mixed Multi-Band PrototypeWaveform Interpolation-Zinc...

hi, i completed my M.tech in DSP. I did my project on " Implementation of Mixed Multi-Band PrototypeWaveform Interpolation-Zinc Function Excitation (MMBE-PWI-ZFE) Speech coder. here i used Zinc pulses i used for reconstructing the speech signal at the decoder instead of no

Hi , I just finished implemeting G726. I found that the quality is very low. Can some one give me sugesstion about improving...

Hi , I just finished implemeting G726. I found that the quality is very low. Can some one give me sugesstion about improving the quality of G.726. I was told that using some of the modules from CELP will improve the quality. But others disagree saying it will not improve

Hi all dears. I am doing a project on vocoders[MELP]. But I am new to this field and I have not much time to go around. ...

Hi all dears. I am doing a project on vocoders[MELP]. But I am new to this field and I have not much time to go around. NOW Can anybody suggest me some thing like a tutorial or good referece on LPC coding. any suggestion is usefull to us.

Hi all, I need help in estimating the positions and pulses of algebraic codebook it is said in the standards (etsi 05.90) : ...

Hi all, I need help in estimating the positions and pulses of algebraic codebook it is said in the standards (etsi 05.90) : "First, for each of the five tracks the pulse positions with maximum absolute values b(n) are searched.From global maximum value for all the pulse p

HI Grp, What is a Harmonic noise shaping filter. What actually it does.? I encountered the following statement in on Speech...

HI Grp, What is a Harmonic noise shaping filter. What actually it does.? I encountered the following statement in on Speech CODEC "In order to improve the quality of the encoded speech, a harmonic noise shaping filter is constructed." How does thi

Does anyone know where I can get the source code for QCELP vocoder ?

Does anyone know where I can get the source code for QCELP vocoder ?

Dear all, I have builded matlab functions over split matrix (SMQ) and split vector quantization (SVQ) in CELP but I am not so...

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.... would you examine my works...please... my works is in the attachment thx alot, arida

Hi all, I have builded a function of impulse response in matlab from pole and zero functions I adopted from the...

Hi all, I have builded a function of impulse response in matlab from pole and zero functions I adopted from the internet but I'm not so sure about the result....anyone can help me please ? perhaps I made mistakes on the function?

Hey I'm working on a CELP AMR codec. The coder uses previous samples of the input speech, for windowing or creating the past...

Hey I'm working on a CELP AMR codec. The coder uses previous samples of the input speech, for windowing or creating the past excitation. So, my question is: what happened for the first frame ? Thank you, Phil.

Hi All, I have few doubts regarding Homing that is done in G.726. The ITU test vectors have few homing sequence for which they...

Hi All, I have few doubts regarding Homing that is done in G.726. The ITU test vectors have few homing sequence for which they have few initialization files. The document says homing is done to initialize the application. Now my doubt is in real time say for ex when we speak i