center {sound} | R Documentation |
Center a Sample Object.
Description
This function adds a constant to a Sample object's waveform, so that its mean gets zero. This makes sense especially for sonification purposes, when (in general non-centered) data is transformed into sound.
Usage
center(s)
Arguments
s |
a Sample object, or a string giving the name of a wav file. |
Details
For a stereo Sample object, both channels are treated separately.
Value
a Sample object with zero as the mean of each channel's waveform.
Author(s)
Author: Matthias Heymann [aut], Stefan Langenberg [cre] (<https://orcid.org/0000-0001-5817-5469>)
Maintainer: Stefan Langenberg <langenberg@uni-bonn.de>
See Also
Examples
## Not run:
x <- seq(0,50*pi,length=10000)
waveform <- (sin(x))^2 + .6*cos(x/2)^2
s <- as.Sample(waveform,44100,16)
plot(s) # nice idea, but wrong range for a sample
play(s) # sounds ugly, too
s <- center(s)
plot(s) # now zero is the mean
play(s) # sounds good, but too quiet
s <- normalize(s)
plot(s) # this looks like a perfect sample!
play(s) # e voila!
## End(Not run)
[Package sound version 1.4.6 Index]