sequenceR (version 1.0.1)

sequence: Sequence a sound sample

Description

Take a sound sample and repeat it following given timeline, volume and pan.

Usage

sequence(
  sample,
  time,
  letRing = TRUE,
  volume = rep(1, NROW(time)),
  pan = rep(0, NROW(time)),
  nmax = 10 * 10^6
)

Value

an S4 Wave object (from package tuneR).

Arguments

sample

Sound sample object.

time

Numeric vector, time (in seconds) at which sample should be repeated

letRing

Logical. If TRUE overlapping samples are added; if FALSE, a new sample stops the previous one (=> beware of the click!))

volume

Numeric vector, volume between 0 and 1.

pan

Numeric vector, pan between -1 (left) and 1 (right) (0 = centered).

nmax

Integer, max number of values for each channel of the resulting Wave. Default value (10*10^6) roughly corresponds to a 150 Mb stereo wave, ~3 min 45s.

Examples

# EXAMPLE 1
# Define a sound sample
sam <- soundSample(sin(2*pi*seq(0,1,,44100)*440)+0.1*rnorm(44100)) # 1-second noisy A
# Sequence it
s <- sequence(sam,time=c(0,0.5,0.75),letRing=FALSE,volume=c(0.4,1,1),pan=c(-1,0,1))
# View the result
tuneR::plot(s)
if (FALSE) {
# All calls to function 'tuneR::play' are wrapped in \dontrun{} since
# they rely on an external audio player to play the audio sample.
# See ?tuneR::setWavPlayer for setting a default player.
tuneR::play(s)}
#' EXAMPLE 2 - make it funkyer
# 2-second sequence based on hi-hat sample
s <- sequence(hiHat,time=seq(0,2,,16),volume=rep(c(1,rep(0.5,3)),4))
# View the result
tuneR::plot(s)
if (FALSE) tuneR::play(s)