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Start up sound
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Join Date: Aug 2000
Location: Madrid/Spain
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Aug 15, 2000, 11:42 AM
 
Hi , new in business, so this might be an easy one for you.
How do I change the sound that comes out when I start up the Imac?

-Mac G4 867, 240Gb HD, +1gb Ram . OS9.2.2 and OS X 10,2,8
-iPod 10 Gb
-PB 12'' 1Ghz 768 RAM + AirPort Extreme OS X 10.2.8
     
pneumatic
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Aug 15, 2000, 12:57 PM
 
Originally posted by ligux:
Hi , new in business, so this might be an easy one for you.
How do I change the sound that comes out when I start up the Imac?

If you are talking about changing the startup chime when you first hit the power button, you dont. The chime is actually a chord of notes played together, and if the machine develops hardware problems, a melody will play, and the melody actually describes (to Apple techs anyway) the problem!

Now if you want a startup sound to play when the machine boots, simply drop a sound file into the startup items folder in the system folder. That's it.
     
Professional Poster
Join Date: Oct 1999
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Aug 15, 2000, 01:00 PM
 
It is my understanding that the Startup "Chime" that plays the instant you power up your Mac is coded into your System ROM (Read Only Memory), and thus cannot normally be changed.

I am not aware of any third party software that may be able to change the startup chime in the system ROM. I seem to recall hearing somewhere that such shareware possibly exists, however.

You can add additional startup sounds simply by placing a sound file into the 'startup items' folder inside your system folder. Similarly, adding sound files to the system folders 'shutdown items' folder will cause the sound to be played when the Mac is powered down.

You may find more useful information at the web site linked here. I hope this helps!

     
Mac Elite
Join Date: Jun 2000
Location: Pasadena
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Aug 15, 2000, 04:32 PM
 
nay, the chime is no longer on hardware. Instead, its in the NW-ROM or something, the ROM file that's in your system folder. The reason I say so is because with the iMacs and the G4s, if you have sound turned off, you cannot get the startup sound, whereas with the older systems, you'll get the sound no matter what. (Or maybe they now store the sound level preference file in the NW-ROM too, in which case they read the sound level pref, then the startup sound...but I think the former makes more sense...)

With that said, I don't think you can change the sound...eventually, if/when I get a new hd, I'll install another MacOS on there and play around with the ROM code to see what turns up...i doubt I'll be successful though...
G4/450, T-bird 1.05GHz, iBook 500, iBook 233...4 different machines, 4 different OSes...(9, 2k, X.1, YDL2.2 respectively) PiA to maintain...
     
ligux  (op)
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Aug 16, 2000, 08:06 PM
 
OK, understood.
Thank you very much indeed.
-Mac G4 867, 240Gb HD, +1gb Ram . OS9.2.2 and OS X 10,2,8
-iPod 10 Gb
-PB 12'' 1Ghz 768 RAM + AirPort Extreme OS X 10.2.8
     
redolsnake
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Aug 21, 2000, 04:29 PM
 

If what Evangellydonut said about the sound being on a file in your System Folder is true, then you would not hear the startup sound until your hd spun up.

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redolsnake
"BOOOYA!"
     
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Aug 21, 2000, 05:14 PM
 
NewWorldROM (aka beta ROM heh) is new to Macs beginning with the first iMac... and is a two part ROM: boot ROM (hardware )and MacOS ROM (software)

MacOS ROM is loaded into RAM, obviously...
quotiing Apple TIL article:
"ROM-in-RAM

Hardware-specific code resides in firmware (ROM) that fits into one ROM called the boot ROM. The boot ROM includes the code and tables needed to start up the computer, load an operating system, and provide common hardware access services.

All higher-level software resides in what has been historically known as the Mac OS ROM, but with much of the old hardware-specific code moved into the boot ROM. As before, the Mac OS ROM can still be augmented by enablers, the System file, and extensions.

Prior to the iMac, all Macintosh computers required a ROM component that contained many components of the Mac OS software. The ROM-in-RAM approach sidesteps this requirement by copying an image of the Mac OS ROM into RAM before the Mac OS begins operation. Once the Mac OS begins operation, a Mac OS ROM image in RAM and an actual Mac OS ROM behave in the same way. No new or different software interfaces are directly accessible from the Mac OS. During the boot process, software contained in the Mac OS ROM file communicates with Open Firmware to collect information about the hardware, using the Open Firmware Client Interface.

Because the Mac OS ROM image is stored in RAM, approximately 3 megabytes of RAM is removed from availability for other uses. In effect, a system with 64 megabytes of RAM appears to have only 61 megabytes available. Some portion of the missing 3 megabytes is offset by having fewer patches in RAM.

Data Structures and Files

"The Mac OS ROM image is contained in a new file, named "Mac OS ROM", that is kept in the System Folder. The Mac OS ROM image is exactly the same as it would be if it were an actual Mac OS ROM, containing the high-level software, the kernel software, and the 68K emulator.

for more on this and so much more see: http://til.info.apple.com/

and it is my fervent belief that the NewWorldROM has been at the root of many different and seemingly unrelated issues... i believe that it has been beta'd on us and will not really work right and/or as advertised until OS X and that is one rather large reason i have not bought any new Macs (except my iBook which i could not resist, and it has had issues i have never seen before on my Macs and all other NewWorldROM Macs likewise have issues that have never been seen before NewWorldROM and these issues are often attributable in part if not completely to NewWorldROM, imo) and will not buy a new Mac until next summer when OS X has been out awhile and Apple has managed to get a bit more clockspeed into their cpu's (for cryin' out loud, i hope so anyway, on both counts).
     
   
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