## help: Solution of LPC equation?

Started by in Matlab DSP17 years ago

hi, I am stuck in my research (a biometrics project) at a point where i have to find out the solution of the LPC equation. i.e...

hi, I am stuck in my research (a biometrics project) at a point where i have to find out the solution of the LPC equation. i.e 1/(1- polynomial_in_z). I have 14 LPC coefficients. And I want to solve the LPC equation. Please tell me how can I do this. MATLAB's 'residue' function

## help on lpc method

Started by in Matlab DSP10 years ago

hi. frist of all,i'm sorry for my poor english. i need your help.i;m working on 'formant detection via LPC method'.i've found a site that...

hi. frist of all,i'm sorry for my poor english. i need your help.i;m working on 'formant detection via LPC method'.i've found a site that done this project via matlab.but i want to write it in c.i cant understand it's algorithm.can you help me.please,nobody answer me Formants Detection via LPC Method LPC % NAME % spLpc - The linear predictive coding (one-step finite observation % ...

## LPC

Started by in Matlab DSP16 years ago

Hello i need help about LPC speech procesing! I saw that matlab have a demo LPC synthesis and analysing.How can i record my own...

Hello i need help about LPC speech procesing! I saw that matlab have a demo LPC synthesis and analysing.How can i record my own voice and proces this voice with LPC. I need decompoce this record signals on to blocks in amplitude - freqency diagram and mark all vowels! Maybe som

## Need help LPC in m-file

Started by in Matlab DSP10 years ago

dear all I get problem LPC function on my m-file. i used syntac y = lpc(x,p), but I want get frameblocking for 30millisecond and divide into...

dear all I get problem LPC function on my m-file. i used syntac y = lpc(x,p), but I want get frameblocking for 30millisecond and divide into 10millisecond, and orde 10. can you help me in this case? best regards Ali Affandi

Started by in Matlab DSP14 years ago

Kukkoja- > How do I use LPC block in Simulink to estimate my signal and then > reconstruct rhe original signal? From the LPC block I get the...

Kukkoja- > How do I use LPC block in Simulink to estimate my signal and then > reconstruct rhe original signal? From the LPC block I get the linear > prediction polynomial coefficients and error coefficients, and I > should be able to construct original signal from these losslessly. > Any help appreciated. LPC is not a transformation; it's an algorithm that models the input signal as pe

## Generating LPC coeffs for later reconstruction?

Started by in Matlab DSP14 years ago

Hello, How to use Matlab's lpc() function to generate LPC coefficients and residue and then reconstruct the original signal? Ive tried it, but...

Hello, How to use Matlab's lpc() function to generate LPC coefficients and residue and then reconstruct the original signal? Ive tried it, but dont get it quite right. My original signal is a short block of real valued samples.. Thanks in advance if you can help!

## lpc coefficients

Started by in Matlab DSP18 years ago 3 replies

Hi, is anybody familiar with LPC analysis? I tried to write a code that computes the LPC coefficients of a given signal sequence...

Hi, is anybody familiar with LPC analysis? I tried to write a code that computes the LPC coefficients of a given signal sequence using 'autocorrelation method' and 'Durbin's recusion algorithm' to solve for the coefficients. It seems to computes correctly according to the equation:

## Warped LPC

Started by in Matlab DSP14 years ago

Hey, I am a beginner to Matlab.. I was reading about the Warped LPC using the all-pass transformation.. I was jus wondering if someone...

Hey, I am a beginner to Matlab.. I was reading about the Warped LPC using the all-pass transformation.. I was jus wondering if someone could send me a code in Matlab, which generates the warped lpc coefficients using the all-pass transformation.. I would really appreciate that.. thanxs bye ______________________

Started by in Matlab DSP14 years ago

How do I use LPC block in Simulink to estimate my signal and then reconstruct rhe original signal? From the LPC block I get the linear prediction...

How do I use LPC block in Simulink to estimate my signal and then reconstruct rhe original signal? From the LPC block I get the linear prediction polynomial coefficients and error coefficients, and I should be able to construct original signal from these losslessly. Any help appreciated.

## LPC to/from Cepstral Coefficients

Started by in Matlab DSP10 years ago

Hii All Did anyone write a function that convert LPC to/from Cepstral Coefficients? Tanks

Hii All Did anyone write a function that convert LPC to/from Cepstral Coefficients? Tanks

## project on voice morphing

Started by in Matlab DSP10 years ago

hello everyone.......I am doing a project on Voice Morphing.....In this it is intended to make the speech of a source speaker sound like uttered...

hello everyone.......I am doing a project on Voice Morphing.....In this it is intended to make the speech of a source speaker sound like uttered by a target speaker..... actually the 1st step is to analyse the speech signal using lpc in matlab.....so can anyone pls suggest me something regarding the implementation of lpc in matlab 7

## Real Time voice compression using LPC

Started by in Matlab DSP15 years ago 1 reply

I have a LPC (linear predictive Coding) listing, but it can't compress voice by real time. it only can compress a *.wav file. Does...

I have a LPC (linear predictive Coding) listing, but it can't compress voice by real time. it only can compress a *.wav file. Does anyone know how to make it real time? Thanks before.

## 2D Linear Prediction

Started by in Matlab DSP17 years ago

Hi ! I'm looking for a two dimensional implementation of Linear Prediction to apply to an image (a 2D version of the 'lpc'...

Hi ! I'm looking for a two dimensional implementation of Linear Prediction to apply to an image (a 2D version of the 'lpc' function that already exists im MATLAB). Thanks in advance. Cheers, Pradeep.

## Estimate LPC's

Started by in Matlab DSP15 years ago 1 reply

Hello, I am trying to compute a solution using the least- square- error principle to an overdetermined system of equations. ...

Hello, I am trying to compute a solution using the least- square- error principle to an overdetermined system of equations. The equation is as below: Error = summation (y[n] ? summation (ai x[n-i] ) ).... in 'ai ' term `i' is subscript where `n

## speech Comparison method

Started by in Matlab DSP16 years ago 2 replies

Dear All, I am doing a project for speech recognition, which method will be good to compare two speechs and tell how much they...

Dear All, I am doing a project for speech recognition, which method will be good to compare two speechs and tell how much they are matched? I am trying using LPC and FFT, but the result is not so good, maybe I should do some quantiztion first, any idea? Tha

## Long Term Predictor - Speech

Started by in Matlab DSP13 years ago

Hi all, i'd like to perform a Long term Pretictor analysis for a .wav speech segment inorder to optain the pitch filter. Any ideas for doing...

Hi all, i'd like to perform a Long term Pretictor analysis for a .wav speech segment inorder to optain the pitch filter. Any ideas for doing it ? I have already implemented LPC analysis if this helps ... Thanks in advance

## MATLAB Files required for LPC10 vocoder

Started by in Matlab DSP15 years ago

Dear friends. im working on the project of LPC-10 vocoder.i strongly need MATLAB Files of it.if any one have it or any...

Dear friends. im working on the project of LPC-10 vocoder.i strongly need MATLAB Files of it.if any one have it or any source of it ..PLZ send me on ..."".. best wishes. ALI YAAR KHAN.

## how to implement log spectral distortion in matlab

Started by in Matlab DSP16 years ago

dear list, i'm working on a project in speech quantization. i want to calculate the log spectral distortion between 2 LPC...

dear list, i'm working on a project in speech quantization. i want to calculate the log spectral distortion between 2 LPC spectra in matlab. is there anybody who can help me? karla

## Importing .wav in Matlab - why two columns?

Started by in Matlab DSP14 years ago 3 replies

Hi All - I am trying to make a simple speech recognition program. I have samples of spoken words saved as .wav files that I am...

Hi All - I am trying to make a simple speech recognition program. I have samples of spoken words saved as .wav files that I am importing into Matlab in order to obtain the sequence of floating-point values that make it up. (I will then perform LPC on these values ...) When I import the .wav files in Matlab, the data matrix consists of two col