LPCDECOMP
NAME
lpcdecomp - decomposes a speech signal into a filter plus residual
SYNOPSIS
lpcdecomp
(-i item) (-n ncoeffs) (-p|-r) file
DESCRIPTION
lpcdecomp
performs a fixed frame LPC analysis on sections of a speech waveform to
generate an LP filter and a residual waveform.
Optionally, the residual is then decomposed further into a pulse-only signal and a noise-only
signal.
The matching program lpcrecomp puts the bits back together again.
With no manipulation of the analysed components, recomposition is close to
lossless.
Options
and their meanings are:
-I
Identify program and version number.
-i item
Select input item number.
-n ncoeff
Specify number of predictor coefficients to use. Default is (2+2*sample_rate/1000).
-p
Decompose the residual into two parts, one containing pulses and one noise.
-r
Randomise phase of noise residual signal.
INPUT ITEMS
1.xx
Any speech waveform
OUTPUT ITEMS
PC
Filter coefficients.
LX
Pulses
LX
Noise
VERSION/AUTHOR
1.0 - Mark Huckvale
Wed Jul 17 22:31:36 2013