POV-Ray : Newsgroups : povray.general : The Sounds of POV-Ray Server Time
16 Jun 2021 10:08:07 EDT (-0400)
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From: ingo
Subject: Re: The Sounds of POV-Ray
Date: 2 Apr 2021 02:04:42
Message: <XnsAD00522F0C593seed7@news.povray.org>
in news:web.60664f78e8731e131f9dae3025979125@news.povray.org Bald Eagle
wrote: 

> Perlin Noise, Simplex Noise, or a Perlin smooth-stepped function?   
> ;) https://en.wikipedia.org/wiki/Smoothstep#Variations

the noise generator option 3. 
 
> The Klein bottle sounds interesting, as does a Moebius strip.

I tried both in SuperCollider and the Bottle does interesting thing. More 
than I expected in just noise. The strip I have to try again with swapped 
uv coordinates. It was just verry noisy.
 
> I am thinking that I'd like to see a "simple" spline-driven song as
> an animation, with sheet music.  Likely jr would love to see animated
> media musical notes.

Haha, go ahead. I'm not a musician. When I look at a piano it quickly 
goes out of tune :)

> I find this extremely interesting, because one of the ideas I had
> about the FFT was to analyze sound files, identify notes, and then do
> what you're doing. 

Kind of the opposite of FFT is an intersting one. Massive additive 
syntesis of sine waves. Check the ANS synthesizer. I have a basic 
experiment working but have to extend that a lot more. Check 
https://warmplace.ru/soft/ans/#about for what can be done. A goal for me 
would be to create a collection of snippets of texture on a disc object 
or polygon that can be placed in the scene and rendered to sound. 

> What do you think about a POV-Ray modeled phonograph, with a vinyl
> album made from a heightfield?   The grooves could be a spiral
> function.  :) 
> 
> Or an old Edison wax cylinder phonograph.
> 
https://en.wikipedia.org/wiki/Music_box
https://en.wikipedia.org/wiki/Optical_sound

Then there's using splines as envelope's Attack Decay Sustain Release 
(ADSR). You can use textures with tracks for rithmic patters. Extend that 
idea to sequencers.

And before you know you are knee deep in DSP terretory with FIR filters 
etc.  https://www.musicdsp.org/en/latest/index.html

Ingo


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From: jr
Subject: Re: The Sounds of POV-Ray
Date: 2 Apr 2021 04:40:00
Message: <web.6066d829e8731e1379819d986cde94f1@news.povray.org>
hi,

ingo <ing### [at] tagpovrayorg> wrote:
> in news:web.60664f78e8731e131f9dae3025979125@news.povray.org Bald Eagle
> wrote:
>
> > Perlin Noise, Simplex Noise, or a Perlin smooth-stepped function?
> > ;) https://en.wikipedia.org/wiki/Smoothstep#Variations
>
> the noise generator option 3.
>
> > The Klein bottle sounds interesting, as does a Moebius strip.
>
> I tried both in SuperCollider and the Bottle does interesting thing. More
> than I expected in just noise. The strip I have to try again with swapped
> uv coordinates. It was just verry noisy.

what would the Umbilic Torus sound like?  :-)

> ...
> Kind of the opposite of FFT is an intersting one. Massive additive
> syntesis of sine waves. Check the ANS synthesizer. I have a basic
> experiment working but have to extend that a lot more. ...
> Then there's using splines as envelope's Attack Decay Sustain Release
> (ADSR). You can use textures with tracks for rithmic patters. Extend that
> idea to sequencers.

a "modular synthesizer" include, combined with a "recording studio" include,
would make a nice base for exploration.  anyway, please keep us in the loop on
developments.


regards, jr.


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From: ingo
Subject: Re: The Sounds of POV-Ray
Date: 2 Apr 2021 06:06:52
Message: <XnsAD007B3865270seed7@news.povray.org>
in news:web.6066d829e8731e1379819d986cde94f1@news.povray.org jr wrote:

> "modular synthesizer"

Haha, yeah, well, have a look at VCV Rack https://vcvrack.com/ for that. I 
actually wrote a few modules for it, but you'd have to compile them your 
self. https://github.com/Moaneschien/4rack

Ingo


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From: tth
Subject: Re: The Sounds of POV-Ray
Date: 2 Apr 2021 06:37:52
Message: <6066f400$1@news.povray.org>
On 4/1/21 5:21 PM, William F Pokorny wrote:

> On 4/1/21 10:29 AM, ingo wrote:
>> https://ingoogni.nl/povray/sounds-of-povray/the-sound-of-povray/

> Wow. That's cool! :-)
> 
> I was also not aware of https://supercollider.github.io

    Another great software for programmatic sound making
    is Chuck : https://chuck.cs.princeton.edu/

    And a few month ago, I'v tried to make some vidz from
    sound files, with some gory software. Sorry, this is
    in french, but I can translate a few explanation...

    http://la.buvette.org/POV/Tripoteca/about.html

tTh

-- 
+-------------------------------------------------------------------+
http://weblog.mixart-myrys.org/?post/2021/01/Laissez-nous-exister-%21
+-------------------------------------------------------------------+


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From: ingo
Subject: Re: The Sounds of POV-Ray
Date: 3 Apr 2021 02:11:52
Message: <XnsAD015364C6DB6seed7@news.povray.org>
in news:6066f400$1@news.povray.org tth wrote:

> http://la.buvette.org/POV/Tripoteca/about.html
> 

This is nice.

Ingo


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From: ingo
Subject: Re: The Sounds of POV-Ray
Date: 4 Apr 2021 11:15:58
Message: <XnsAD02AF9F7B8B1seed7@news.povray.org>
Oscillators:

https://ingoogni.nl/povray/sounds-of-povray/swing-povray-swing/

without sounds as they can be ear piercing and I have to figure out HTML 
to set the player to a low volume.

But you can render the sounds yourself,

Ingo


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From: Tor Olav Kristensen
Subject: Re: The Sounds of POV-Ray
Date: 4 Apr 2021 19:20:00
Message: <web.606a4962e8731e13d6f19eb189db30a9@news.povray.org>
ingo <ing### [at] tagpovrayorg> wrote:
> in news:XnsACFFB5D42DEA3seed7@news.povray.org ingo wrote:
>
> > Next up, wave terrain synthesis.
>
> https://ingoogni.nl/povray/sounds-of-povray/the-sound-of-height-fields/
>...

That's intersting!

Good idea to probe the surface in a circular motion so that there are no
discontinuities in the sound wave.

--
Tor Olav
http://subcube.com
https://github.com/t-o-k


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From: ingo
Subject: Re: The Sounds of POV-Ray
Date: 5 Apr 2021 14:04:07
Message: <XnsAD03CC268452seed7@news.povray.org>
in news:web.606a4962e8731e13d6f19eb189db30a9@news.povray.org Tor Olav 
Kristensen wrote:

> Good idea to probe the surface in a circular motion so that there are no
> discontinuities in the sound wave.

Properly closed splines also work well,

Ingo


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From: ingo
Subject: Re: The Sounds of POV-Ray
Date: 7 Apr 2021 07:38:48
Message: <XnsAD058AD09B51Cseed7@news.povray.org>
in news:XnsACFFA7C775533seed7@news.povray.org ingo wrote:

Here's an other one. Perlin noise and the Klein Bottle.

https://ingoogni.nl/povray/sounds-of-povray/perlin-and-the-bottle/

Ingo

> The last weeks I've been exploring ways to use POV-Ray for sound
> creation.


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From: Leroy
Subject: Re: The Sounds of POV-Ray
Date: 7 Apr 2021 18:40:00
Message: <web.606e33cbe8731e13a93e6a71f712fc00@news.povray.org>
ingo <ing### [at] tagpovrayorg> wrote:
> https://ingoogni.nl/povray/sounds-of-povray/the-sound-of-povray/
>
> The last weeks I've been exploring ways to use POV-Ray for sound creation.
> It actaully works quite simple. I put up a first article on it. Very basic
> (the site also). More will follow,
>
> Ingo

Audacity has function 'Sample data import' that I've used to make my own waves.
It is written in a float txt format that makes it eazy to import from POV.
I use POV splines to make a road height field and then used the same splines to
make the motor noise of a car.(it's on YouTube as MarsCarsII)

I like what you've done! Keep up the good work.


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