tuneR: MonoStereo – R documentation

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MonoStereo

Converting (extracting, joining) stereo to mono and vice versa

Description

Functions to extract a channel from a stereo Wave object, and to join channels of two monophonic Wave objects to a stereophonic one.

Usage

mono(object, which = c("left", "right", "both"))
stereo(left, right)

Arguments

`object`	Object of class `Wave`.
`which`	Character, indicating whether the “left” or “right” channel should be extracted, or whether “both” channels should be averaged.
`left`	Object of class `Wave` containing `mono`phonic sound, to be used for the left channel.
`right`	Object of class `Wave` containing `mono`phonic sound, to be used for the right channel (if missing, the `left` channel is duplicated). If `right` is missing, `stereo` returns whether `left` is stereo (`TRUE`) or mono (`FALSE`).

Details

For objects of WaveMC-class, a mono channel can be created by simple matrix indexing, e.g. WaveMCobject[,2] selects the second channel.

Value

An object of class Wave.

If argument right is missing in stereo, a logical values is returned that indicates whether left is stereo (TRUE) or mono (FALSE).

Author(s)

Uwe Ligges ligges@statistik.tu-dortmund.de

Examples

Wobj <- sine(440)
Wobj
Wobj2 <- stereo(Wobj, Wobj)
Wobj2
mono(Wobj2, "right")

tuneR

Analysis of Music and Speech

v1.3.3

GPL-2 | GPL-3

Authors

Uwe Ligges <ligges@statistik.tu-dortmund.de> with contributions from Sebastian Krey, Olaf Mersmann, Sarah Schnackenberg, Guillaume Guenard, Andrea Preusser, Anita Thieler, Johanna Mielke and Claus Weihs, as well as code fragments and ideas from the former package 'sound' by Matthias Heymann and functions from 'rastamat' by Daniel P. W. Ellis. The included parts of the libmad MPEG audio decoder library are authored by Underbit Technologies.

Initial release

2018-07-03