Hi, Most of the celp coders today are implemented in DSP platforms and I didnt come across vlsi implementation of this celp...

Hi, Most of the celp coders today are implemented in DSP platforms and I didnt come across vlsi implementation of this celp coders.If anybody have any information regarding asic implementation of celp coder,please mail me. At present I am doing project regarding CELP

Hi all, did anyone had builded a matlab function of algebraic codebook search in CELP ? is it possible to build a simulation...

Hi all, did anyone had builded a matlab function of algebraic codebook search in CELP ? is it possible to build a simulation program of CELP using matlab ? -regards arida ---------------------------------

Dear all: 1. I need CELP / MELP source code or program compatible with windows OS. 2. I am implementing a datahiding technique (echo...

Dear all: 1. I need CELP / MELP source code or program compatible with windows OS. 2. I am implementing a datahiding technique (echo data hiding technique) using simulink. i had already written a code for it. so i need a help in DSP simulink for implementing the technique. 3. i successfully could seperate two mixed sound with FastICA technique, but after applying CELP

I am working on a project on audio compression using code excited linear prediction (CELP) techniques. My aim is to design a basic working CELP...

I am working on a project on audio compression using code excited linear prediction (CELP) techniques. My aim is to design a basic working CELP codec in matlab. Since audio processing is new to me I am confused with some of the details of algorithms:- Firstly, the input to Short Term predictor(STP) is the original or the preprocessed speech and the input to Long term predictor(LTP) is the ...

hi all I am working on a project on audio compression using code excited linear prediction (CELP) techniques. My aim is to design a...

hi all I am working on a project on audio compression using code excited linear prediction (CELP) techniques. My aim is to design a basic working CELP codec using visual c++ under windows. i have some problem reading data chunk from riff format file using vc++ whene i try to read a block of 240 byte only 60 byte are read and the rest of buffer is zero i try different commandes (_read,fread...

Hello, I am doing M.Tech. project on CELP in real time using DSP kit TMS320c6713 Note that I had refer CELP demo given in simulink. ...

Hello, I am doing M.Tech. project on CELP in real time using DSP kit TMS320c6713 Note that I had refer CELP demo given in simulink. I am using simple gaussian codebook ,LPC parameters(LPC co-efficients and reflection co-efficients). My problem is how to find index for codebook? what will be gain for excitation signal coming from codebook?This gain will be constant or variable ...

Dai, B. James- Add... MELP --> Mixed Excitation Linear Prediction -Jeff -------- Original Message -------- ...

Dai, B. James- Add... MELP --> Mixed Excitation Linear Prediction -Jeff -------- Original Message -------- Subject: Re: [speechcoding] Urgent Help Needed on CELP Date: Tue, 11 May 2004 19:07:08 +0800 (CST) From: dai Guangfa <

Dear all, I was trying to download the LPC10e and CELP matlab code from www.cysip.com (under "useful DSP links"), but somehow the fill...

Dear all, I was trying to download the LPC10e and CELP matlab code from www.cysip.com (under "useful DSP links"), but somehow the fill form doesn't work for me. I am wondering if any of you have a copy of those codes available, or have any other resources, please help me out. Thanks very much! Best, Frank

Hi guys, I am doing a project, comparing ADPCM & CELP. For this i have chosen G.721 for ADPCM & G.729 standard for CELP. In...

Hi guys, I am doing a project, comparing ADPCM & CELP. For this i have chosen G.721 for ADPCM & G.729 standard for CELP. In these, 1)What are the parameters that can be compared in these 2? 2)How can the Mean squared error be found out? 3)Are the MOS scores standa

I'm just starting to get involved in speech processing/coding, and I'm trying to find low-bitrate patent-free codecs, around...

I'm just starting to get involved in speech processing/coding, and I'm trying to find low-bitrate patent-free codecs, around 4.8kbit and below. I haven't been able to find any solid info on patent issues with some of the obvious codecs (eg. CELP). For example, CELP is standar

Hi all, I am interested in the knowing the computational complexity of existing celp 4.8 kbps optimized implementations (either...

Hi all, I am interested in the knowing the computational complexity of existing celp 4.8 kbps optimized implementations (either commercial or form research groups), especially if expressed in % of occupation on a dsp 56002 processor. Any information (references to litera

i am interesting in speech coding, i have a few question about g728 1. in LD CELP the predictor coefficients, the excitation...

i am interesting in speech coding, i have a few question about g728 1. in LD CELP the predictor coefficients, the excitation are updated my question is, what for it must be updated. 2.In LD CELP we use hybrid window,why we use it, why it must separate to non recursive p

Dear All, I have some difficulties in understanding CELP coding process, one of them is about Mean-removed LSF vector and...

Dear All, I have some difficulties in understanding CELP coding process, one of them is about Mean-removed LSF vector and quantization of LSF coefficient (ETSI 06.09). For 7.95 kbps mode, the residual LSF is quantified using split vector quantization (SVQ). The re

Dear all, I have downloaded the source of CELP. But I didn't find the papers to explain the details of this algorithm. So I...

Dear all, I have downloaded the source of CELP. But I didn't find the papers to explain the details of this algorithm. So I want to know where I can find it? Thank you.

hi all, i am puzzled about the use of long-time predictor in celp. i see in some implementations, there is a long-time...

hi all, i am puzzled about the use of long-time predictor in celp. i see in some implementations, there is a long-time predictor (ltp) but in others, eg fs-1016, there isn't. if I understand correctly, the ltp is used to compute the gain. but why is there a need

Dear all, I need the matlab source code for low bit rate coders such as LPC10, LPC10e, CELP, and etc. Does anybody have the code...

Dear all, I need the matlab source code for low bit rate coders such as LPC10, LPC10e, CELP, and etc. Does anybody have the code available or can give me some help? Thanks very much! Best regards, Frank

hi all: i have a speech file 8KHZ and 16bit/ sample, 128kbps. what's the convenient CELP algorithm for this bit rate for the best ...

hi all: i have a speech file 8KHZ and 16bit/ sample, 128kbps. what's the convenient CELP algorithm for this bit rate for the best quality. where can i find the souce code or the application and also for the MELP algorithm. Thanks, Ann

im new to speech coding. Currently im trying to calculate speech recognition accuracy for TIMIT corpus which is coded using GSM and CELP...

im new to speech coding. Currently im trying to calculate speech recognition accuracy for TIMIT corpus which is coded using GSM and CELP 4.8kbps coder. im using HTK toolkit. i find out the my speech recognition accuracy drop drastically when i tested coded speech using the acoustic model trained using NIST (wav) file from TIMIT corpus.below i list down my method and can someone of you ...

Hi, i need snr comparision of lpc-10 and celp to show that celp is better as compared to lpc.can any one help. Bhargavi

Hi, i need snr comparision of lpc-10 and celp to show that celp is better as compared to lpc.can any one help. Bhargavi

Hi This is vijaya bhaskar vasha ,i am doing my M.Tech project on secure speech communication on TMS320C6713 DSP microprocessor i.e. first i...

Hi This is vijaya bhaskar vasha ,i am doing my M.Tech project on secure speech communication on TMS320C6713 DSP microprocessor i.e. first i need to compress the speech signal and then encrypt it. compression algorithm i choose is CELP . But the problem is now that i am not getting the exact block diagram of the CELP. So if some has related material to this please send to me ...