LSPANAL

NAME

lspanal - code speech waveform with line spectral pairs + residual

SYNOPSIS

lspanal (-w window) (-s step) (-n ncoeffs) (-i item) (-t) (-g) file

DESCRIPTION

lspanal performs a windowed LPC analysis on sections of a speech waveform and converts the predictor polynomial to line spectral pairs (frequencies). The LSPs and a residual are stored.

Options and their meanings are:

-I Identify program and version number.

-i item Select input item number.

-w window Select analysis window size in milliseconds. Default: 20ms.

-s step Select analysis window step size in milliseconds. Default: 10ms.

-n ncoeff Specify number of predictor coefficients to use. Default is (2+2*sample_rate/1000).

-t Perform pitch-synchronous analysis. Requires TX item in input file.

-g Calculate and save group delay function from residual as track.

INPUT ITEMS

1.xx Any speech waveform

3.xx (Optional) Excitation markers.

OUTPUT ITEMS

10 Line spectral frequencies (in fractions of sample rate).

VERSION/AUTHOR

1.0 - Mark Huckvale

Wed Jul 17 22:31:36 2013