[Csnd] Approximating a turbine

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[Csnd] Approximating a turbine

Jeanette C.
Hey hey again,
in combination I also need an approximation of a turbine. It doesn't need to
be physically correct, but sonically satiisfactory. The project is a sort of
soundscape or "cinematic sequence".

Note: I have read one paper on "numerical modelling of wind turbines" and seen
other papers touching on that question. However, the numerical modelling
paper, didn't need a good frequency approximation, since it was only
interested in sound pressure, and all of these papers pose the difficulty that
I can't read any mathematical relationships nor part of the variable names.

One initial idea: would it be possible to use the model of an aeolian harp, or
more precisely the m_aerosound opcode, which models wind blowing past a
cylinder?

Best wishes,

Jeanette

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Re: [Csnd] Approximating a turbine

Hans and Laurel Mikelson
I would try white noise with a granular envelope that gets smaller and closer together as the frequency gets faster.

Hans Mikelson

> On Sep 11, 2018, at 3:08 PM, Jeanette C. <[hidden email]> wrote:
>
> Hey hey again,
> in combination I also need an approximation of a turbine. It doesn't need to be physically correct, but sonically satiisfactory. The project is a sort of soundscape or "cinematic sequence".
>
> Note: I have read one paper on "numerical modelling of wind turbines" and seen other papers touching on that question. However, the numerical modelling paper, didn't need a good frequency approximation, since it was only interested in sound pressure, and all of these papers pose the difficulty that I can't read any mathematical relationships nor part of the variable names.
>
> One initial idea: would it be possible to use the model of an aeolian harp, or more precisely the m_aerosound opcode, which models wind blowing past a cylinder?
>
> Best wishes,
>
> Jeanette
>
> --
> * Website: http://juliencoder.de - for summer is a state of sound
> * SoundCloud: https://soundcloud.com/jeanette_c
> * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
> * GitHub: https://github.com/jeanette-c
> * Twitter: https://twitter.com/jeanette_c_s
>
> I'm not that innocent... <3
> (Britney Spears)
>
> Csound mailing list
> [hidden email]
> https://listserv.heanet.ie/cgi-bin/wa?A0=CSOUND
> Send bugs reports to
>       https://github.com/csound/csound/issues
> Discussions of bugs and features can be posted here

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Re: [Csnd] Approximating a turbine

Jeanette C.
Sep 12 2018, Hans and Laurel Mikelson has written:

> I would try white noise with a granular envelope that gets smaller and closer together as the frequency gets faster.
Thanks! This sounds interesting and simple.
...

Best wishes,

Jeanette

--
  * Website: http://juliencoder.de - for summer is a state of sound
  * SoundCloud: https://soundcloud.com/jeanette_c
  * Youtube: https://www.youtube.com/channel/UCMS4rfGrTwz8W7jhC1Jnv7g
  * GitHub: https://github.com/jeanette-c
  * Twitter: https://twitter.com/jeanette_c_s

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