SCALE(1) The Canonical Csound Reference SCALE(1)
NAME
scale - Scale the amplitude of a sound file. .
DESCRIPTION
Takes a sound file and scales it by applying a gain, either constant or variable. The scale can be specified as a multiplier, a maximum or
a percentage of 0db.
SYNTAX
scale [OPTIONS ... ] infile
INITIALIZATION
Flags:
o -A = Generate an AIFF outout file.
o -W = Generate an WAV outout file.
o -h = Generate an outout file with no header.
o -c = Generate 8-bit signed_char sound samples.
o -a = Generate alaw sound samples.
o -u = Generate ulaw sound samples.
o -s = Generate short integer sound samples.
o -l = Generate long (32 bit) integer sound samples.
o -f = Generate floating point samples.
o -F arg = Specifies the gain to be applied. If arg is a floating point number that gain is applied uniformly to the input. Alternatively
it could be a file name which specifies a breakpoint file for varying the gain for different periods.
o -M fpnum = Scales the input so the maximum absolute displacement is the value given.
o -P fpnum = Scales the input so the maximum absolute displacement is the pencentage given of 0db.
o -R = Continually rewrite the header while writing soundfile (WAV/AIFF).
o -H integer = Show a "heart-beat" to indicate progress, in style 1, 2 or 3.
o -N = Alert call (usually ringing the bell) when finished.
o -o fname = output file name (default: test.wav)
EXAMPLES
scale -s -W -F 0.96 -o out.wav sound.wav
This creates a new sound file with a constant gain of 0.96. It is particularly useful if the input file is in floating point format.
CREDITS
Author: John ffitch
1994
AUTHORS
Barry Vercoe
MIT Media Lab
Author.
Dan Ellis
MIT Media Lab,
Cambridge
Massachussetts
Author.
COPYRIGHT
5.07 06/23/2009 SCALE(1)
