COMBINE
NAME
combine - add two speech signals
SYNOPSIS
combine
(-i item1) (-i item2) (-2) file
combine
(-i item1) (-N item2) (-2) -n file2 file1
DESCRIPTION
combine
is a program to add together two waveforms. It is useful for adding
noise to a speech signal. A signal in file 1 is added to a signal in
file 2 and the result put back into file 1. Signals must match
exactly in sample rate. The second signal is padded with zeros if
it is too short. Two items from one file can also be added, by
using one filename only.
OPTIONS
-I
Identify program name and version number.
-i item
Select input item number.
-n noise_file
Specify name of file containing second signal. Default is to use
same file.
-N noise_item
Specify item number of signal in second file.
-2
Halve the size of each waveform first to prevent overflow.
INPUT ITEMS
SP
Signal in file 1.
SP
Signal in file 2.
OUTPUT ITEMS
SP
Sum of two signals.
VERSION/AUTHOR
1.0
Andrew Simpson
1.1
Mark Huckvale
SEE ALSO
level(SFS1)
BUGS
If the resulting signal overloads, the program dies.
Fri Jul 09 14:54:41 2004