R help - Jan 2013 - Writing audio files (.wav) in a different directory

Hi.

I'm trying to export a .wav file using the writeWave function from tuneR
package in a different folder than the default getwd().
After reading through the manuals of some audio packages I couldn't figure
it out.

I'm picking one 3-hour .wav file and asking the function to take a sample
of 1 minute (from minute 100 to minute 101 of the 3-hour file) and saving
it in an object "rec".

Here is what I'm doing:

 filename<-"QUm0B24x_SMS05_20100831_052100.wav"
 min.ini<-100
 min.fin<-101

 library(tuneR)
 rec<-readWave(filename,min.ini,min.fin,"minutes")
 writeWave(rec,"cut1.wav")

It is writing the file in the same directory of the "filename" object.
What
I want to do is to write the "cut1.wav" file in a different folder.

Any suggestions?

Thanks in advance!

-- 
*Humberto Mohr*
*
*
Mestrando do PPG-Ecologia do Instituto Nacional de Pesquisas da Amazônia
(INPA)
Graduate student of the Master Program in Ecology in the National Institute
of Amazon Research (INPA)

	[[alternative HTML version deleted]]

Hi.
>
> I'm trying to export a .wav file using the writeWave function from
tuneR
> package in a different folder than the default getwd().
> After reading through the manuals of some audio packages I couldn't
figure
> it out.
>
> I'm picking one 3-hour .wav file and asking the function to take a
sample
> of 1 minute (from minute 100 to minute 101 of the 3-hour file) and saving
> it in an object "rec".
>
> Here is what I'm doing:
>
>  filename<-"QUm0B24x_SMS05_20100831_052100.wav"
>  min.ini<-100
>  min.fin<-101
>
>  library(tuneR)
>  rec<-readWave(filename,min.ini,min.fin,"minutes")
>  writeWave(rec,"cut1.wav")
>
> It is writing the file in the same directory of the "filename"
object.
> What I want to do is to write the "cut1.wav" file in a different
folder.
>
> Any suggestions?
>
> Thanks in advance!
>
> --
> *Humberto Mohr*
> *
> *
> Mestrando do PPG-Ecologia do Instituto Nacional de Pesquisas da Amazônia
> (INPA)
> Graduate student of the Master Program in Ecology in the National
> Institute of Amazon Research (INPA)
>
	[[alternative HTML version deleted]]

Put the directory name into the filename string. The syntax for doing that is
somewhat OS dependent, but for most cases you can use "/" as the
separator. You really should Google "file path" and your OS and learn
how to do this, because it is broadly applicable outside of R (not an R-help
question). Look for info on "absolute path" and "relative
path".
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Humberto Mohr <humberto.mohr at gmail.com> wrote:
>Hi.
>
>I'm trying to export a .wav file using the writeWave function from
>tuneR
>package in a different folder than the default getwd().
>After reading through the manuals of some audio packages I couldn't
>figure
>it out.
>
>I'm picking one 3-hour .wav file and asking the function to take a
>sample
>of 1 minute (from minute 100 to minute 101 of the 3-hour file) and
>saving
>it in an object "rec".
>
>Here is what I'm doing:
>
> filename<-"QUm0B24x_SMS05_20100831_052100.wav"
> min.ini<-100
> min.fin<-101
>
> library(tuneR)
> rec<-readWave(filename,min.ini,min.fin,"minutes")
> writeWave(rec,"cut1.wav")
>
>It is writing the file in the same directory of the "filename"
object.
>What
>I want to do is to write the "cut1.wav" file in a different
folder.
>
>Any suggestions?
>
>Thanks in advance!