LPC and VQ in MATLAB code

[Walter Sun]

In article <3v1m0d$m...@seagoon.newcastle.edu.au>,
eeko...@firebird.newcastle.edu.au says...

>
> I need to know where i can acquire some code for lpc
> and vector quantization in matlab code
>
> If it is at all available
>
Hi,

LPC code can be found in the Signal Processing Toolbox under
lpc.m. Vector quantization information can be found in the
Neural Net Toolbox, under the following m-files...

Basic functions.
simulvq - Simulate LVQ network.
initlvq - Initialize LVQ network.
trainlvq - Train LVQ network.

Transfer Functions.
compet - Competitive transfer function.
purelin - Linear transfer function.

Learning rules.
learnlvq - Learning vector quantization rule.

Demonstrations.
demolvq1 - Learning Vector Quantization.

Walter Sun
The MathWorks Inc.
24 Prime Park Way
Natick, MA 01760
e-mail: ws...@mathworks.com

[KOLEGA Tommy]

Please can anybody help....

I need to know where i can acquire some code for lpc
and vector quantization in matlab code

If it is at all available

Your help will be greatly appreciated

Cheers
Tommy

[Ilangko]

Hi,

I am trying to minimize a function which has 18 variables by using
the Optimization toolbox's function called fminu. After some
iterations the regular warning says that the results may not be
correct and the matrix is closer to singular.

I have tried to change the options parameters and am not sure which
line search algorithm will be a good choice when you have a non-
linear system to minize with fairly large number of variables.
Pl. give me good references of other softwares, if any, which are more
capable of handling this type of problems.

Thank you in advance.

Ilangko.
<ila...@driver.isy.liu.se>