Remove noise
This function removes background noise by smoothing
rmnoise(wave, f, channel = 1, output = "matrix", ...)
wave |
an R object. |
f |
sampling frequency of |
channel |
channel of the R object, by default left channel (1). |
output |
character string, the class of the object to return, either
|
... |
other |
This function is based on smooth.spline. You can
use the arguments of the later to modify the smoothing.
A new wave is returned. The class
of the returned object is set with the argument output.
Low frequency noise might not be removed out properly.
Jerome Sueur sueur@mnhn.fr
# synthesis of a 440 Hz sound with background noise n <- noisew(d=1,f=8000) s <- synth(d=1,f=8000,cf=440) ns <- n+s # remove noise (but low frequency content still there) a <- rmnoise(ns,f=8000)
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