Message-ID: <3E0095BF.4040501@statistik.uni-dortmund.de>
Date: 2002-12-18T17:02:06Z
From: Uwe Ligges
Subject: from wav to R
In-Reply-To: <3E0070CE.23749.E31F22@localhost>
Petr Pikal wrote:
> Dear all
>
> I would like to perform frequency analysis of a sound (noise)
> recorded as a wav file (I would like to compare different sounds if
> they vary in frequency and how much). I know there exists some
> packages (Cool Edit) for doing frequency analysis of sounds but I
> wonder if anybody tried to do it in R.
>
> I found a package sound. It enables to play with wav files, to
> append them and to make some filtrations. But if I wanted to
> invoke a spectrum() function it did not work with sound object.
>
> Please can somebody give me a hint where to look or how to
> convert wav file to some kind of object analysable by R functions.
If you did
mywave <- loadSample(.....)
the data you are trying to analyze is in the matrix
mywave$sound
Uwe Ligges