readWave: Reading Wave files

In tuneR: Analysis of music and speech

Description

Reading Wave files.

Usage

readWave(filename, from = 1, to = Inf, 
    units = c("samples", "seconds", "minutes", "hours"), header = FALSE, toWaveMC = NULL)

Arguments

filename	Filename of the file to be read.
from	Where to start reading (in order to save memory by reading wave file piecewise), in units.
to	Where to stop reading (in order to save memory by reading wave file piecewise), in units.
units	Units in which from and to is given, the default is "samples", but can be set to time intervals such as "seconds", see the Usage Section above.
header	If TRUE, just header information of the Wave file are returned, otherwise (the default) the whole Wave object.
toWaveMC	If TRUE, a WaveMC-class object is returned. If NULL (default) or FALSE and a non-extensible Wave file or an extensible Wave file with no other than the “FL” and “FR” channels is found, a Wave-class object is returned, otherwise a WaveMC-class object.

Value

An object of class Wave or WaveMC or a list containing just the header information if header = TRUE. If the latter, some experimental support for reading bext chunks in Broadcast Wave Format files is implemented, and the content is returned as an unprocessed string (character).

Author(s)

Uwe Ligges [e-mail], Sarah Schnackenberg

See Also

Wave-class, Wave, WaveMC-class, WaveMC, writeWave

Examples

Wobj <- sine(440)

tdir <- tempdir()
tfile <- file.path(tdir, "myWave.wav")
writeWave(Wobj, filename = tfile)
list.files(tdir, pattern = "\\.wav$")
newWobj <- readWave(tfile)
newWobj
file.remove(tfile)

Example output

[1] "myWave.wav"

Wave Object
	Number of Samples:      44100
	Duration (seconds):     1
	Samplingrate (Hertz):   44100
	Channels (Mono/Stereo): Mono
	PCM (integer format):   FALSE
	Bit (8/16/24/32/64):    32 

[1] TRUE

tuneR documentation built on May 2, 2019, 6:15 p.m.