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Old 9th August 2005, 10:21 PM   #1
angel is offline angel  Norway
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Default Grey noise

Hi.

I've been looking for a downloadable grey noise generator, or a (preferrably long) grey noise sample, to do some headphone eq.

Does anyone know where I might find this?

Sincerely.
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Old 10th August 2005, 02:49 AM   #2
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Eh?

Grey
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Old 10th August 2005, 03:21 AM   #3
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Grey noise

yep
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Old 10th August 2005, 03:55 AM   #4
Mr Evil is offline Mr Evil  United Kingdom
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I have never heard the term before, so I did some searching. I didn't have much luck though, since almost every definition of it is a copy of the same text (no way of determining which is the original):
Quote:
noise subjected to a psychoacoustic equal loudness curve (such as an inverted a-weight curve) over a given range of frequencies, so that it sounds like it is equally loud at all frequencies.
There was one which said it was just another name for white noise, and a few mentions without a definition.

I would suggest that the best way of going about it would be to generate white noise and then filter it.
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Old 10th August 2005, 03:56 AM   #5
jam is offline jam  United States
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mpmarino,

You beat me to it .........................................

Jam
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Old 11th August 2005, 03:49 PM   #6
Radon is offline Radon  Poland
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You just have to know where to search:

Wikipedia
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Old 11th August 2005, 04:19 PM   #7
Mr Evil is offline Mr Evil  United Kingdom
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Quote:
Originally posted by Radon
You just have to know where to search:

Wikipedia
As I said, all the definitions use virtually identical wording to the one I quoted above, indicating that everyone is just quoting a single source of unknown reliability. It may or may not be the "official" definition, if one exists.
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Old 12th August 2005, 03:14 AM   #8
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Well, it says inverted A-weighting, meaning there's more power (as measured) at fringe frequencies and less in the middle range where hearing is better. This (spectra weighting, that is) probably all started with Bose.

Tim
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