sequence: Sequence a sound sample

In benRenard/sequenceR: A Simple Sequencer for Data Sonification

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
)

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.

Value

an S4 Wave object (from package tuneR).

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)
## Not run: 
# 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)
## End(Not run)
#' 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)
## Not run: tuneR::play(s)

benRenard/sequenceR documentation built on Jan. 11, 2025, 2:33 a.m.