Forums Search for: ACELP
further query in ACELP
Hi all! I have another interesting query on ACELP wrt G.723.1 (well, atleast i think its interseting!) As far as ACELP...
Hi all! I have another interesting query on ACELP wrt G.723.1 (well, atleast i think its interseting!) As far as ACELP goes, the search is performed in 4 nested loops, where in each loop the contribution of a new pulse is added. The objective is to maxime the
ACELP doubts
Hello everyone! I have a few doubts in the ACELP part of G.723.1 encoder. In G.723.1 ,ACELP is used for secondary residual...
Hello everyone! I have a few doubts in the ACELP part of G.723.1 encoder. In G.723.1 ,ACELP is used for secondary residual quantisation in 5.3 kbps rate mode.The algebraic stucture of the codebook allows for fast search procedures, since the excitation vecto
ACELP
Hi, I am looking for information and resource related to ACELP coders. Can anyone suggest online resources? Thank you ...
Hi, I am looking for information and resource related to ACELP coders. Can anyone suggest online resources? Thank you
statistical characteristics ACELP
inhi can somebody please tell me about statistical characteristics a frame speech when that coded by ACELP? many thanks
hi can somebody please tell me about statistical characteristics a frame speech when that coded by ACELP? many thanks
Advantages & Disadvantages of ACELP & QCELP
inHi, my name is Novi, I would like to know the advantages of disadvantages of ACELP & QCELP, when compared to CELP. Can anyone please tell me?...
Hi, my name is Novi, I would like to know the advantages of disadvantages of ACELP & QCELP, when compared to CELP. Can anyone please tell me? Thank you very much..
ACELP source code in C++ or C or "MATLAB"
inhi ,All friends I'm looking for ACELP source code in C++ or C or "MATLAB". Can anyone please know where to find this? Thank you
hi ,All friends I'm looking for ACELP source code in C++ or C or "MATLAB". Can anyone please know where to find this? Thank you
ACELP 12200 bps code request
Hi all friends . where can I get "C" or "MATLAB" or "Simulink" code of 12200 bps ACELP codec ? Shaerbaf ...
Hi all friends . where can I get "C" or "MATLAB" or "Simulink" code of 12200 bps ACELP codec ? Shaerbaf
CS-ACELP g.729 (interpolated LPC)
Hi all, My Q is Why we use interpolated LPC coeff for the first subframe synthesis instead of Quantized LPC coeff itself? I...
Hi all, My Q is Why we use interpolated LPC coeff for the first subframe synthesis instead of Quantized LPC coeff itself? I mean to ask, In G.729 CS-ACELP codec for speech synthesis interpolated LPC coeff are used for the 1st subframe and Quantised LPC coeff are used for
Download Standard speech coders
Hi I want to download a source code (in c/c++ or c#) standards speech coders (MELP, ACELP, AMR_WB,...). Can you show me where I can do...
Hi I want to download a source code (in c/c++ or c#) standards speech coders (MELP, ACELP, AMR_WB,...). Can you show me where I can do that. Thanks
Re: Wave header format for mu-law and A-law
in> I notice that mplayer2 can handle your ACELP example, but mplayer and Winamp cannot. > Is there a list somewhere of codecs...
> I notice that mplayer2 can handle your ACELP example, but mplayer and Winamp cannot. > Is there a list somewhere of codecs supported by WMP? Is it possible to create > user-defined plug-ins and additional codec identifier definitions for WMP so they can > ha
AMR-NB Optimization
inHai everybody, Can anybody suggest me a method to optimize the ACELP search in AMR-NB codec?(DFTS method) so that there is no...
Hai everybody, Can anybody suggest me a method to optimize the ACELP search in AMR-NB codec?(DFTS method) so that there is no reduction in speech quality when compared to original? I have already gone through some IEEE papers. But speech quality is not maintained. They reduced the
standard speech coder
inHi I am looking for source code (C/C++) standard speech coder (FS MELP, ACELP, AMR_NB,....) to download or to buy. Is there official web site...
Hi I am looking for source code (C/C++) standard speech coder (FS MELP, ACELP, AMR_NB,....) to download or to buy. Is there official web site where I download them (for free or to buy them) Thanks
Code book search problem
Hi, sorry for posting this url late but it will be helpful to all people working on ACELP g.729, g.723.1 , or FS1016 (to some...
Hi, sorry for posting this url late but it will be helpful to all people working on ACELP g.729, g.723.1 , or FS1016 (to some extent) please goto www.upsto.gov click search then search by patent number or goto www.getthepatent.com patentnum
fixed/algebraic codebook in 3GPP-AMR or G729
Dear all, Can anyone give me/direct me to a DETAILED/any explanation of the fixed codebook(of G729)/algebraic codebook(of 3GPP...
Dear all, Can anyone give me/direct me to a DETAILED/any explanation of the fixed codebook(of G729)/algebraic codebook(of 3GPP AMR ACELP) with specific refrence to Qk = (x2Hck)^2 (d Ck)^2 (Rk)^2 --------- = ------ = ------- CkH HCk Ck phick Ek ...Equat
Depth first search in G729A speech coder
inHi there, somebody please explain me about the depth first codebook search algorithm used in G729A (CS-ACELP). Also suggest...
Hi there, somebody please explain me about the depth first codebook search algorithm used in G729A (CS-ACELP). Also suggest some references (if any) to understand the logic behind the depth first search algorithm (specific to G729A codebook search). Th
EFR Code Book search
Hi, I am working on porting GSM Enhanced Full Rate (EFR) Speech codec on a customer DSP. Currently We are working on porting ACELP...
Hi, I am working on porting GSM Enhanced Full Rate (EFR) Speech codec on a customer DSP. Currently We are working on porting ACELP ( Code Book Search ) functions. I observed that the code book searh algorithm implemented in C code is complex and is very difficult to optimize in
MOS Score - G.726 ADPCM & G.729 CS-ACELP - Voice Quality issues?
Hi DSP Related members, I am researching to find out information on the voice quality of codecs used for VoIP communication using networking...
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. The main objective is that the MOS (Mean Opinion Score) should be greater than 3.82 on the scale of 1 (poor quality) and 5 (best quality). Is the Codec G.726 ADPCM (32 Kbps) with a MOS of 3.85 is used in the re...
3rd generation of moblie communications :c code ,matlab simulink, matlab s-function and dsp platform for amr encoder and decoder
Hello, I am working on the topic that you see in the subject(3rd generation of moblie communications --> speech coding --> amr (ACELP)...
Hello, I am working on the topic that you see in the subject(3rd generation of moblie communications --> speech coding --> amr (ACELP) encoder and decoder) I have written the c code that is compatible with the needs that we want.and i made it`s decoder and encoder in exe file. now i want to bering it to matlab simulink to make it intarctive. the ne