White, Pink, or Brown noise generators?
Even better would be Active Noise Cancellation (Adaptive Noise Cancellation?) software. I don't know if there is some Gnu team working on this? The idea is that the computer plays back a reverse image soundwave through its speakers of whatever constant noise signal it picks up from a microphone, just loud enough to cancel out the original sound. It really does work: back in 1998, when I bought my first Wallstreet, I checked out the demo model which had an extraordinarily quiet hard drive. It was barely audible even with an ear pressed to the computer body. Not so the computer delivered to me a few weeks later, which had one of the noisiest drives I have ever heard in any laptop then or since, bar none. Asked to account for this, the dealer ushered me into a "quiet room" at the back of his store, where neither he, nor his service manager, nor indeed I, were able to hear any noise at all from my hard drive. Only later, when it was too late, I realised that room had been unnaturally quiet... so quiet, that it could only have been achieved using a state of the art active noise cancellation system. (From that time on, I didn't set foot in his store except to make warranty claims on equipment purchased from other dealers) hth.. Alan Dow --------------------------------------------- On 2008-11-30 20:02 -0500, Brian Troisi wrote: > Thank you for the help! Unfortunately, it didn't help. I also can't >see how clearing out dust (which I did) from the iBook would quiet >down the hard drive, which is the culprit of the noise. Thank you for >trying though! > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to Low End Mac's G-Books list, a group for those using G3 iBooks and PowerBooks (we run a separate list for G4 'Books). The list FAQ is at http://lowendmac.com/lists/g-books.html and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/g-books?hl=en Low End Mac RSS feed at feed://lowendmac.com/feed.xml -~----------~----~----~----~------~----~------~--~---
