oscilloST: Show a stereo time wave as oscillograms

In seewave: Sound Analysis and Synthesis

Show a stereo time wave as oscillograms

Description

This graphical function displays a stereo (2 channels) time wave as an oscillogram in a two-frame plot. The envelope of the wave can also be shown.

Usage

oscilloST(wave1, wave2 = NULL, f, from = NULL, to = NULL,
fastdisp = FALSE,
identify = FALSE, plot = TRUE, colwave1 = "black",
colwave2 = "blue", coltitle = "black",
collab = "black", cexlab = 1, fontlab = 1, colaxis = "black",
cexaxis = 1, coly01 = "grey47", coly02 = "black", title = FALSE,
bty = "l")

Arguments

wave1	a first R object.
wave2	a second R object.
f	sampling frequency of wave (in Hz). Does not need to be specified if embedded in wave.
from	start of the oscillogram (in s).
to	end of the oscillogram (in s).
fastdisp	faster graphic display for long wave. The stereo oscillogram is displayed/saved faster in the graphic device/ graphic file when set to TRUE, with a cost on the graphic resolution.
identify	returns the time coordinate of points chosen with a cursor on the bottom oscillogram.
plot	logical, if TRUE returns an oscillographic or envelope plot of wave(by default TRUE).
colwave1	colour of the oscillogram or of the envelope of wave1.
colwave2	colour of the oscillogram or of the envelope of wave2.
coltitle	if title is TRUE, colour of the title.
collab	colour of axes title.
cexlab	character size for axes title.
fontlab	font for axes title.
colaxis	colour of the axes
cexaxis	mangification for axes annotation.
coly01	colour of the y=0 line of wave1.
coly02	colour of the y=0 line of wave1.
title	logical, if TRUE plots the title with information on time and f (by default FALSE).
bty	the type of box to be drawn around the oscillogram.

Value

Data are returned as two-column matrix if plot is FALSE. identify returns a numeric object with the time coordinate of points successively chosen on the bottom oscillogram.

Author(s)

Jerome Sueur and Caroline Simonis.

See Also

oscillo, oscilloEQ, dynoscillo

Examples

a<-synth(f=8000,d=1,cf=2000,am=c(50,10),plot=FALSE)
b<-synth(f=8000,d=1,cf=1000,fm=c(0,0,2000,0,0),plot=FALSE)
oscilloST(a,b,f=8000)

seewave documentation built on Oct. 19, 2023, 5:07 p.m.