seewave (version 1.5.5)

noise: Generate noise

Description

This function generates noise.

Usage

noise(f, d, type="unif", listen = FALSE, Sample = FALSE)

Arguments

f

sampling frequency of the signal to be generated (in Hz)

d

duration of the signal to be generated.

type

a character string to specify the type of noise, either "unif" or "gaussian".

listen

if TRUE the new sound is played back.

Sample

if TRUE and plot is FALSE returns an object of class Sample

Value

• If plot is FALSE, a new wave is returned as a one-column matrix or as a Sample object if Sample is TRUE.

Details

Uniform noise is generated using runif and gaussian noise is based on rnorm

See Also

synth, pulse

Examples

# add noise to a synthetic signal
a<-noise(d=1,f=8000)
b<-synth(f=8000,d=1,cf=2000,plot=FALSE)
c<-a+b
spectro(c,f=8000)