OpenEuphoria

RE: Perlin Noise - Texture Generator

• Posted by rforno at tutopia.com Nov 21, 2002
• 484 views

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The wave shape shown in your .bmp does not seem to correspond to noise, but
rather to a definite pitch sound. However, it is difficult to tell that from
such a short sample. But I am interested in the routine you used to generate
it. If at all possible, please post it to the forum or send me it by mail.
Attached you will find two text files describing the .wav format. I
downloaded them, I think, from www.wotsit.com, or somewhere similar.
You will also find a .ex file. This is part of an unfinished project I'm
working in at this very moment. It was a happy coincidence that you were
working in a noise generator at the same time.
This file wont execute, because many routines are missing, but it will show
you how to generate a .wav file. At some point in the routines, you should
provide actual data. This data is floating-point, having any value. It is
"normalized" afterwards in the "out" routine to the range -32768 to 32767,
generating a .wav with 2-channel sound at 44100 Hz sample rate.
Regards.
----- Original Message -----
From: <dm31 at uow.edu.au>
To: EUforum <EUforum at topica.com>
Sent: Thursday, November 21, 2002 2:29 AM
Subject: RE: Perlin Noise - Texture Generator



|Can you use the routines to generate sound intead of images?
|TIA

Now, I really have never done any programming with creating sound, I
have however set up some routines that should be able to be used to
produce sound in a similiar way to that of the textures. Could you
give me any details on what information it should be able to produce??

Attached is a pix of a early attempt. I just displayed the wave form
on the screen.

Is there a Eu lib that I could easily use to produce wav files out of
raw data? Only got intranet/mailbox access still, so I can't search
the archives :(

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