On 2020-07-23 14:19 -0400, Richard M. Heiberger wrote:
> On Thu, Jul 23, 2020 at 7:21 AM bretschr <brets...@xs4all.nl> wrote:
> >
> > Dear Vahid,
> >
> >
> > Re:
> >
> > > I have a question regarding the
> > > following code:
> > > setWavPlayer("/Library/Frameworks/R.framework/Versions/3.6/Resources/bin/play")
> > > # path depends on your R version etc.
> > >
> > > How can I find the corresponding
> > > path on my laptop?
> >
> >
> > This line ...
> >
> > setWavPlayer("/Library/Frameworks/R.framework/Versions/3.6/Resources/bin/play")
> >
> > ... is the path on my MacBook Air
> > running Mac OS Mojave. The
> > structure of R on similar computers
> > and OS versions will be the same,
> > but I don't know if you use Windows
> > or Linux. Maybe an R-user working
> > with Windows or Linux can help.
>
> The R command
> system.file()
>
> tells you where the currently running
> version of R is located on your
> machine and your operating system.
>
> On the Macintosh it shows
> > system.file()
> [1] "/Library/Frameworks/R.framework/Resources/library/base"
>
> You don't need to worry about the R
> version number, as R knows where it is
> and gives you the location of the
> currently running version. You can
> now open a system directory file
> (Finder on Mac, WindowsExplorer on
> Windows, etc) and navigate up and down
> to what you are looking for.
>
> Or, within R, you can navigate with ..
> and more directory statements, thus
> the example from the original email
>
> setWavPlayer("/Library/Frameworks/R.framework/Versions/3.6/Resources/bin/play")
> # path depends on your R version etc.
>
> would be written
> tmp <- system.file("../../bin/play")
> and the result is the correct location
> (if it is there).
> You will get an empty string if it is
> not ther, but this will get you
> started on where to look. then you
> write
>
> setWavPlayer(tmp) # path depends on your R version etc.
Hello, I found you can use mpv (and
mplayer) as well, instead of sox[1].
There are many ways to install it[1]
including various ways on mac.
> system("whereis mpv")
mpv: /usr/bin/mpv /etc/mpv /usr/include/mpv /usr/share/mpv
/usr/share/man/man1/mpv.1.gz
> tuneR::setWavPlayer("/usr/bin/mpv")
> w <- tuneR::readWave(filename="rf_07.wav", from=0, to=1e6)
> w
Wave Object
Number of Samples: 1000001
Duration (seconds): 22.68
Samplingrate (Hertz): 44100
Channels (Mono/Stereo): Stereo
PCM (integer format): TRUE
Bit (8/16/24/32/64): 16
> tuneR::play(w)
(+) Audio --aid=1 (pcm_s16le 2ch 44100Hz)
AO: [pulse] 44100Hz stereo 2ch s16
A: 00:00:22 / 00:00:22 (98%)
Exiting... (End of file)
>
> tuneR::setWavPlayer("/usr/bin/play")
> tuneR::play(w)
/tmp/RtmpadTOu6/tuneRtemp.wav:
File Size: 4.00M Bit Rate: 1.41M
Encoding: Signed PCM
Channels: 2 @ 16-bit
Samplerate: 44100Hz
Replaygain: off
Duration: 00:00:22.68
In:100% 00:00:22.68 [00:00:00.00] Out:1.00M [ -====|====- ] Hd:4.2
Clip:0
Done.
>
Best,
Rasmus
[1] http://sox.sourceforge.net/
[1] https://mpv.io/installation/
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