Starup pink noise

Imacer · 09-19-2004, 04:44 PM

When I startup my iMac I get a loud ping sound. How can this be turned off?

NigelA10 · 09-19-2004, 05:28 PM

You can try this prefpane. I have been using it without problems on my G4.
Make sure you read the documentation in case you have trouble.

http://www5e.biglobe.ne.jp/~arcana/S.../index.en.html

AHunter3 · 09-19-2004, 10:07 PM

Nothing useful to add, just popped in to find out how in the name of heck a noise can be pink.

trevor · 09-19-2004, 11:50 PM

I think Imacer meant to type "ping" noise. However, pink noise is very real.

White noise is similar to the sound you hear when a television is on a channel with no signal--over time every frequency of sound in the range of human hearing is there in equal amounts.

Pink noise, on the other hand, is white noise that is filtered so that there is equal energy in every octave. Basically, as the octaves go up, the amount of volume of noise in the octave is reduced by 6 dB.

There--that's probably more information than you wanted to know to explain a simple mistyping, but there you are.

Do a web search for "pink noise" if you want to know more.

Trevor

NigelA10 · 09-20-2004, 12:20 AM

You can also get pink noise from a pink iPod mini

Imacer · 09-20-2004, 05:43 PM

I mean the sound when my machine startup. sorry for the confusion.

09-19-2004, 04:44 PM	#1
Imacer Major Leaguer Join Date: Aug 2003 Posts: 301	Starup pink noise When I startup my iMac I get a loud ping sound. How can this be turned off? __________________ 27'' Dual Core i7, 1 TB GB drive, 12 GB Ram, Safari. 2 external 1GB & 3GB external WD drives, Lacie blue-rey burner

09-19-2004, 11:50 PM	#4
trevor Moderator Join Date: Jun 2003 Location: Boulder, CO USA Posts: 19,551	I think Imacer meant to type "ping" noise. However, pink noise is very real. White noise is similar to the sound you hear when a television is on a channel with no signal--over time every frequency of sound in the range of human hearing is there in equal amounts. Pink noise, on the other hand, is white noise that is filtered so that there is equal energy in every octave. Basically, as the octaves go up, the amount of volume of noise in the octave is reduced by 6 dB. There--that's probably more information than you wanted to know to explain a simple mistyping, but there you are. Do a web search for "pink noise" if you want to know more. Trevor __________________ How to ask questions the smart way

09-20-2004, 05:43 PM	#6
Imacer Major Leaguer Join Date: Aug 2003 Posts: 301	I mean the sound when my machine startup. sorry for the confusion. __________________ 27'' Dual Core i7, 1 TB GB drive, 12 GB Ram, Safari. 2 external 1GB & 3GB external WD drives, Lacie blue-rey burner

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09-19-2004, 05:28 PM	#2
NigelA10 Prospect Join Date: Sep 2004 Posts: 8	You can try this prefpane. I have been using it without problems on my G4. Make sure you read the documentation in case you have trouble. http://www5e.biglobe.ne.jp/~arcana/S.../index.en.html

09-19-2004, 10:07 PM	#3
AHunter3 Hall of Famer Join Date: Jan 2002 Location: New York City Posts: 3,003	Nothing useful to add, just popped in to find out how in the name of heck a noise can be pink.

09-20-2004, 12:20 AM	#5
NigelA10 Prospect Join Date: Sep 2004 Posts: 8	You can also get pink noise from a pink iPod mini