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MIXER(1) The Canonical Csound Reference MIXER(1)

NAME

mixer - Mixes together a number of soundfiles. .

DESCRIPTION

Mixes together a number of soundfiles, starting at different times and with individual channel selection from the input files.

SYNTAX

mixer [OPTIONS ... ] infile [[OPTIONS... ] infile] ...

INITIALIZATION

Flags:
 
•-A = Generate an AIFF output file.
 
•-W = Generate an WAV output file.
 
•-h = Generate an output file with no header.
 
•-c = Generate 8-bit signed_char sound samples.
 
•-a = Generate alaw sound samples.
 
•-u = Generate ulaw sound samples.
 
•-s = Generate short integer sound samples.
 
•-l = Generate long (32 bit) integer sound samples.
 
•-f = Generate floating point samples.
 
•-F arg = Specifies the gain to be applied to the following input file. 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.
 
•-S integer = Indicate at which sample to start to mix in the next input file.
 
•-T fpnum = Indicate at which time (in seconds) to start to mix in the next input file.
 
•-1 = Mix in channel 1 from next sound file.
 
•-2 = Mix in channel 2 from next sound file.
 
•-3 = Mix in channel 3 from next sound file.
 
•-4 = Mix in channel 4 from next sound file.
 
•-^ intx inty = Mix in channel x from next sound file as channel y in the output.
 
•-v = Verbose mode.
 
•-R = Continually rewrite the header while writing soundfile (WAV/AIFF).
 
•-H integer = Show a "heart-beat" to indicate progress, in style 1, 2 or 3.
 
•-N = Alert call (usually ringing the bell) when finished.
 
•-o fname = output file name (default: test.wav)

EXAMPLES

The default values are
 
     mixer -s -otest -F 1.0 -S 0
 
For example
 
     mixer -F 0.96 in1.wav -S 300 -2 in2.aiff -S 300 -^4 1 in3.wav -o out.wav
 
This creates a new sound file with a constant gain of 0.96 from in1.wav with the second channel of in2.aiff mixed in after 300 samples and channel 4 of in3.wav outpout as channel 1 after 300 samples.

CREDITS

Author: John ffitch
1994

AUTHORS

Barry Vercoe
 
MIT Media Lab
 
Author.
Dan Ellis
 
MIT Media Lab,
Cambridge
Massachussetts
 
Author.

COPYRIGHT

08/01/2011 5.10