cutw {seewave} | R Documentation |
This function selects and cuts a section of data describing a time wave. Original and cut sections can be plotted as oscillograms for comparison.
cutw(wave, f, from, to, plot = FALSE, marks = TRUE, ...)
wave |
data describing a time wave
or a Sample object created loading a wav file
with loadSample (package Sound). |
f |
sampling frequency of wave (in Hz). |
from |
start mark (in s). |
to |
end mark (in s). |
plot |
logical, if TRUE returns an oscillographic plot of original
and cut sections (by default FALSE ). |
marks |
logical, if TRUE shows the start and end mark on the plot (by default TRUE ). |
... |
other oscillo graphical parameters. |
If plot
is TRUE
returns a two-frame plot with both
original and cut sections.
If plot
is FALSE
, cutw
returns a one-column matrix
describing the cut wave with the same sampling frequency as original data.
Jérôme Sueur jerome.sueur@univ-tours.fr
oscillo
, pastew
, deletew
,
mute
, timer
.
# a 0.4 s section in a bird song data(tico) a<-cutw(tico,f=22050,from=0.5,to=0.9) oscillo(a,22050) # a direct way to see what has been cut cutw(tico,f=22050,from=0.5,to=0.9,plot=TRUE)