level: Manual Page

LEVEL

NAME

level - adjust signal level to fixed mean energy

SYNOPSIS

level (-I) (-i item) (-a absolute level|-r relative level) (-t silence_threshold) file

DESCRIPTION

level is a program to adjust the mean energy of a signal by a relative amount or to a fixed level. Silent regions in the signal are ignored in the energy calculation.

OPTIONS

-I Identify program name and version number.

-i item Select input item number.

-a absolute_level Set level required in absolute dB relative to the maximum level possible for 16-bit data (i.e. 0dB = sinusoid at -32767..+32767). Values are always negative.

-r relative level Change level by a relative number of dB.

-t threshold Set threshold for identifying silence. Default 70dB.

INPUT ITEMS

SP Speech signal

OUTPUT ITEMS

SP Adjusted level.

VERSION/AUTHOR

1.0 Andrew Simpson

_{Fri Jul 09 14:54:43 2004}