lfs(wave, f, shift, wl = 128, wn = "hanning", output = "matrix")
wave
(in Hz). Does not need to be specified if embedded in wave
.ftwindow
(by default "hanning"
)."matrix"
, "Wave"
, "Sample"
, "audioSample"
or "ts"
.plot
is FALSE
, a new wave is returned. The class
of the returned object is set with the argument output
.spectro
), then the frequency shift is applied and the new
signal is eventually generated using the reverse of the Fourier Transform
(fft
).
There is therefore neither temporal modifications nor
amplitude modifications.ffilter
, spectro
data(orni)
a<-lfs(orni,f=22050,shift=1000)
spectro(a,f=22050)
# to be compared with the original signal
spectro(orni,f=22050)
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