Tomas Chlebek New MacBook Pros among other things, it changes the lid opening function. They either just wake up classically, or they turn on. But the typical sound that has been accompanying switching on since time immemorial has disappeared. The following instructions can be used to return it, and if you don't like booting the system immediately after opening the lid, you can also turn it off.
First of all, it should be noted that this is an intervention in the system, so it is necessary to follow the instructions exactly and to avoid any risk, it is better to give up the sound when turning on. However, this is a simple procedure and entering the following commands through Terminal should not cause any problem.
Open Terminal (Applications > Utilities) and type/copy one of the commands below into it. Confirm each entry with Enter and enter your administrator password.
Command to enable sound on power up:
sudo nvram BootAudio =% 0
Command to turn off sound on power up:
sudo nvram BootAudio =% 00
Command to disable booting after opening the lid:
sudo nvram AutoBoot =% 00
Command to turn on booting after opening the lid:
sudo nvram AutoBoot =% 03
The ability to turn on and off the boot after opening the lid is only for owners of the new MacBook Pro, the ability to turn on and off the boot sound for everyone.
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Macs have been announcing their launches with a similar sound since the late nineties. Originally, it had a purely practical function - a "gong" announces that the system is booting up without problems. But since then, the chord a little lower than G-flat major/F-flat major has become iconic and has also acquired an aesthetic status.
A chord between F flat major and G flat major?
F# === Gb
The equalization only applies in evenly tempered tuning, in other, e.g. pure tuning, it does not apply so precisely.
no, it's the same in sheet music
No, it's the same regardless of tuning.
I already found the 'source':
"Apple's trademark application stated that the "mark consists of a sound mark consisting of a slightly flat (by approximately 30 cents) G flat/F sharp major chord." You could download the startup chime here. "
so it's just a bad translation ;)
I admit that I wasn't fully focused when I wrote that paragraph, so I didn't realize that Fis and Ges are basically the same thing.
For older macbooks, just turn off the sound. If I turn the sound down to 0% before turning it off, the gong won't sound after turning it on, if I don't do that, it will sound. Do I understand correctly that this has not been valid for a long time?
I'm not sure…it seems to work on some MacBooks and not others. Anyway, the instructions in the article are for permanently turning off the sound, regardless of the set system volume before turning off the computer.
Now I tried to turn off the boot sound on the MBP Retina 2014 using the mentioned command sudo nvram BootAudio=%00, but it didn't work - the boot sound still plays.
Hey, I can't mute it with mid2014 either...
The alternatives are as follows:
to disable: sudo nvram SystemAudioVolume=%80
to enable: sudo nvram -d SystemAudioVolume
or another variation for shutdown:
sudo nvram SystemAudioVolume=%01
sudo nvram SystemAudioVolume=%00
sudo nvram SystemAudioVolume=” “ (just a space after the equal sign, no quotes)