Hi Michael,
My smiley was meant to indicate 'nice one' not 'yer wat??' now it's
LOL.....
Dave
On 5 September 2014 10:30, Michael Chapman <s...@mchapman.com> wrote:
> > [?]
> >
>
> I did say 'OT' ... ;-)>
>
> But, if
> sin.wav is a 0.01Hz sine wave, peaking at 1.0
> and
> cos.wav is a 0.01Hz cosine wave peaking at 1.0,
>
> then
>
> newX.wav = X.wav x cos.wav - Y.wav x sin.wav
> newY.wav = X.wav x sin.wav + Y.wav x cos.wav
>
> are interesting ... ?
>
> Cutting and pasting bits of various sin.wav's/cos.wav's/etc. into a
> 'rotate.wav'
> and
> making files for higher orders are left as exercises for the reader ...
>
> Michael
>
> >
> > On 5 September 2014 09:20, Michael Chapman <s...@mchapman.com> wrote:
> >
> >>
> >> [OT]
> >>
> >> As there has been some discussion of SoX as a command line file
> >> (channel)
> >> splitter, I thought I'd also note:
> >>
> >> You can (as with many audio tools) create slow (e.g. 0.01 Hz) sine and
> >> cosine waves as 'audio' files.
> >>
> >> What is rarer, is that you can multiply two 'audio' files, so you can
> >> produce rotations on the command line ...
> >>
> >> Michael
> >>
> >>
> >>
> >> _______________________________________________
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> >> Sursound@music.vt.edu
> >> https://mail.music.vt.edu/mailman/listinfo/sursound - unsubscribe here,
> >> edit account or options, view archives and so on.
> >>
> >
> >
> >
> > --
> >
> > As of 1st October 2012, I have retired from the University.
> >
> > These are my own views and may or may not be shared by the University
> >
> > Dave Malham
> > Honorary Fellow, Department of Music
> > The University of York
> > York YO10 5DD
> > UK
> >
> > 'Ambisonics - Component Imaging for Audio'
> >
>
> _______________________________________________
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> Sursound@music.vt.edu
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>
--
As of 1st October 2012, I have retired from the University.
These are my own views and may or may not be shared by the University
Dave Malham
Honorary Fellow, Department of Music
The University of York
York YO10 5DD
UK
'Ambisonics - Component Imaging for Audio'
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