FWIW, see also the 'midi' R package
(https://github.com/moodymudskipper/midi). It's not on CRAN. /Henrik
On Thu, Jul 23, 2020 at 12:19 PM Rasmus Liland <j...@posteo.no> wrote:
>
> 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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