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miamizsun

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Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Jan 22, 2025 - 5:25am

(might be a good time to ask)

where are you?
please come back to earth
we miss you and we will get through whatever it is...


miamizsun

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Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Mar 12, 2023 - 1:58pm

a moment
miamizsun

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Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Aug 22, 2018 - 2:28pm

Dolomites from L'oeil d'Eos on Vimeo.


sirdroseph

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Location: Not here, I tell you wat
Gender: Male


Posted: Aug 29, 2014 - 10:24am


Proclivities

Proclivities Avatar

Location: Paris of the Piedmont
Gender: Male


Posted: Jun 4, 2014 - 10:38am

"Today, I saw a very large man driving a very small car. Behind him was a very large truck being driven by a very small man."


Umberdog

Umberdog Avatar

Location: In my body.
Gender: Male


Posted: Sep 15, 2011 - 6:38pm

 winter wrote:
Nicely put. I guess I just don't see why they aren't all "white". I'm missing something about the distinction.
 

From: http://en.wikipedia.org/wiki/Colors_of_noise

White noise

White noise spectrum. Flat power spectrum.
(logarithmic frequency axis)

White noise is a signal (or process), named by analogy to white light, with a flat frequency spectrum <1>. In other words, the signal has equal power in any band of a given bandwidth (power spectral density). For example, with a white noise audio signal, the range of frequencies between 40 Hz and 60 Hz contains the same amount of sound power as the range between 4000 Hz and 4020 Hz has.


Pink noise
Pink noise spectrum. Power density falls off at 10 dB/decade (-3 dB/octave).

The frequency spectrum of pink noise is linear in logarithmic space; it has equal power in bands that are proportionally wide.<1><2> This means that pink noise would have equal power in the frequency range from 40 to 60 Hz as in the band from 4000 to 6000 Hz. Since humans hear in such a proportional space, where a doubling of frequency (an octave) is perceived the same regardless of actual frequency (40–60 Hz is heard as the same interval and distance as 4000–6000 Hz), every octave contains the same amount of energy and thus pink noise is often used as a reference signal in audio engineering. The power density, compared with white noise, decreases by 3 dB per octave (density proportional to 1/f ). For this reason, pink noise is often called "1/f noise".

Since there are an infinite number of logarithmic bands at both the low frequency (DC) and high frequency ends of the spectrum, any finite energy spectrum must have less energy than pink noise at both ends. Pink noise is the only power-law spectral density that has this property: all steeper power-law spectra are finite if integrated to the high-frequency end, and all flatter power-law spectra are finite if integrated to the DC, low-frequency limit.

Brown(ian) noise

Brown spectrum (-6 dB/octave)

In fields that adopt precise definitions, the terminology "red noise", also called Brown noise or Brownian noise, will usually refer to a power density which decreases 6 dB per octave with increasing frequency (density proportional to 1/f 2)<1> over a frequency range which does not include DC (in a general sense, does not include a constant component, or value at zero frequency). In areas where terminology is used loosely, "red noise" may refer to any system where power density decreases with increasing frequency.<3>

The first definition can be generated by an algorithm which simulates Brownian motion or by integrating white noise. "Brown" noise is not named for a power spectrum that suggests the color brown; rather, the name is a corruption of Brownian motion. "Red noise" describes the shape of the power spectrum, with pink being between red and white. Also known as "random walk" or "drunkard's walk" noise.




Manbird

Manbird Avatar

Location: La Villa Toscana
Gender: Male


Posted: Sep 15, 2011 - 5:09pm

 winter wrote:

Nicely put. I guess I just don't see why they aren't all "white". I'm missing something about the distinction.
 
I downloaded the free thunderstorm mp3.It sounds better than roasted cauliflower. I like it. 
winter

winter Avatar

Location: in exile, as always
Gender: Male


Posted: Sep 15, 2011 - 4:27pm

 Manbird wrote:

The brown seems to have a deeper tone - more ambience. It reminds me of listening to the ocean in a large shell. 
 
Nicely put. I guess I just don't see why they aren't all "white". I'm missing something about the distinction.


Manbird

Manbird Avatar

Location: La Villa Toscana
Gender: Male


Posted: Sep 15, 2011 - 4:26pm

 winter wrote:

Yeah, the "white" and "pink" seem harsh. 

I can hear the difference, but I wonder why the labels - I'd have called them all white. What's the difference between "white", "brown", and "pink"? 
 
The brown seems to have a deeper tone - more ambience. It reminds me of listening to the ocean in a large shell. 
winter

winter Avatar

Location: in exile, as always
Gender: Male


Posted: Sep 15, 2011 - 4:23pm

 Manbird wrote:

The 'brown' noise works for me. It keeps the voices away. Or does it? 
 
Yeah, the "white" and "pink" seem harsh. 

I can hear the difference, but I wonder why the labels - I'd have called them all white. What's the difference between "white", "brown", and "pink"? 
Manbird

Manbird Avatar

Location: La Villa Toscana
Gender: Male


Posted: Sep 15, 2011 - 4:21pm

 miamizsun wrote: 
The 'brown' noise works for me. It keeps the voices away. Or does it? 
miamizsun

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Location: (3283.1 Miles SE of RP)
Gender: Male


Posted: Sep 15, 2011 - 4:12pm



hippiechick

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Location: topsy turvy land
Gender: Female


Posted: May 14, 2008 - 12:13pm

Painted_Turtle

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Location: Land of Laughing Waters
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Posted: May 14, 2008 - 12:11pm

samiyam

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Location: Moving North


Posted: May 14, 2008 - 10:18am

samiyam

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Location: Moving North


Posted: May 13, 2008 - 1:29pm

K_Love

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Gender: Female


Posted: May 13, 2008 - 1:26pm

samiyam

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Location: Moving North


Posted: May 13, 2008 - 1:25pm

K_Love

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Gender: Female


Posted: May 13, 2008 - 1:22pm

samiyam

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Location: Moving North


Posted: May 13, 2008 - 1:16pm

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