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               LPC-PARCOR-CEPSTRUM Generator for C Programmers
                              version 0.5b

                          by Patrick Ko Shu-pui

                  Copyright (c) 1992 All Rights Reserved.
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ADDRESS TO CONTACT:

            fidonet:  6:700/132 BiG Programming Club [852] 654-8751
            internet: [[Email Removed]]

            mailing:  Patrick Ko
                      No.11, 14 Street,
                      Hong Lok Yuen,
                      Tai Po, Hong Kong

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Any comment is welcomed. Please send mails to the internet address.
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READ    .ME     - this file
CEPSTRUM.C      - Cepstrum generation
CPARSER .C      - command line parser
CPARSER .H      - command line parser header
DEMO    .BAT    - demo shell script
DEMO    .RSP    - demo response file
GIO     .C      - general i/o
GIO     .H      - general i/o header
LPC     .C      - LPC generator
LPC     .H      - LPC generator header
LPC     .EXE    - LPC program for DOS only
LPC1    .C      - LPC (covariance)
LPC2    .C      - LPC (autocorrelation)
LPCMAIN .C      - LPC main program
MAKEFILE.DOS    - makefile for DOS
MAKEFILE.UX     - makefile for Unix
MATCREAT.C      - matrix creation
MATDUMP .C      - matrix dumping
MATDURBN.C      - matrix: linear eqn solving (Levinsion-Durbin algorithm)
MATERR  .C      - matrix error handler
MATRIX  .H      - matrix header file
MATSOLVE.C      - matrix: lienar eqn solving (Gaussian elim w/ partial pivot)
SAMPLE          - sample audio file
ULAW2LIN.C      - ulaw to linear data conversion
ULAW2LIN.H      - ulaw2lin.c header
VERSION .H      - version header

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WHATS NEW IN v0.5:

        -       support 8-bit-ulaw (SUNSPARC), 16-bit PCM audio data format
        -       the rectangular window size, windows overlapping size can
                be specified
        -       generate :

                n LPC (autocorrelation) coefficients, or
                n LPC (covariance) coefficients, or
                n PARCOR coefficients, or
                n+1 LPC cepstrum coefficients

                if you specify n-order transformation.
                (use -order= at command line)

        -       support response file (see demo.bat which is a shell script)

NOTE:
        -       the IPC feature is not implemented yet.


HOW TO COMPILE:

        1.      Ultrix under DecStation - use MAKE with MAKEFILE.UX
        2.      Other Unix Platform - use MAKEFILE.UX
        3.      DOS - use MAKEFILE.DOS (with Turbo C v2.0)

HOW TO RUN:

        -       type lpc at the shell prompt and a usage screen
                will be displayed


REFERENCE

        [1] Mary L. Boas, "Mathematical Methods in the Physical Sciene,"
        John Wiley & Sons, 2nd Ed., 1983. Chap 3.

        [2] Kendall E. Atkinson, "An Introduction to Numberical Analysis,"
        John Wiley & Sons, 1978.

        [3] Shuzo Saito, Kazuo Nakata, "Fundamentals of Speech Signal
        Processing," Academic Press, 1985.

AUTHOR
All the sources are written by Patrick KO Shu Pui
SysOp of BiG Programming Club (6:700/132, fidonet), Hong Kong.

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AUTHORIZATION NOTICE

This C source package LPC05b.ZIP is FREE for ACADEMIC purpose only.

For COMMERCIAL usage, authorization is required from the author. Please
SEND a US$50 cheque to the address above payable to the author.
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DISCLAIMER      (I hate this but I have to do that)

You are on your own risk - the author is not responsible for any lost due
to the use of this toolbox.
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