Lately an "unknown system event" triggers an audible sound to play on my iMac 27 inch, running High Sierra 10.13.6. This audible sound is generated even though, in the sound control panel, I've unchecked the boxes "'Play user interface sound effects' and 'Play feedback when the volume is changed?'
When this failed to prevent the sound from playing, I opened a terminal window and executed the following command: "defaults write com.apple.system sound "com.apple.sound.uiaudio.enabled" -int 0", intended to terminate/prevent any and all system sound generation.
Still, the sound persists.
Those reviewing this post should know this problem persists both before and after a full fresh (hard drive reformatted/partitioned) install of High Sierra 10.13.6 (the latest OS my iMac is capable of hosting).
I wish I could describe it more effectively but the description that comes to mind is that of a "digital plop".
The two attached screenshots represent errors logged at the moment I heard the more recent alert:
You can see the first screenshot illustrates a logged error timestamp of 17.23.55.581156, continuing unbroken into the topmost timestamp of 17.24.08.414082, on the second screenshot. I've also generated and attached a fresh EtreCheck Report.
Please consider the following:
1) How is it that the iMac can generate an audible alert (at all), given preventative steps taken above?
2) The only way to fully mute the sound is to mute the computer. Not a viable or acceptable option.
2) Is there any way to determine if the system sound is being generated as a result of a "connection" or "pairing" between my iPhone 7 Plus, and my iMac. In other words, could there be a process, sourced from my iPhone, responsible for sound generation on my iMac?
Can anyone help me diagnose and provide a solution?
When this failed to prevent the sound from playing, I opened a terminal window and executed the following command: "defaults write com.apple.system sound "com.apple.sound.uiaudio.enabled" -int 0", intended to terminate/prevent any and all system sound generation.
Still, the sound persists.
Those reviewing this post should know this problem persists both before and after a full fresh (hard drive reformatted/partitioned) install of High Sierra 10.13.6 (the latest OS my iMac is capable of hosting).
I wish I could describe it more effectively but the description that comes to mind is that of a "digital plop".
The two attached screenshots represent errors logged at the moment I heard the more recent alert:
You can see the first screenshot illustrates a logged error timestamp of 17.23.55.581156, continuing unbroken into the topmost timestamp of 17.24.08.414082, on the second screenshot. I've also generated and attached a fresh EtreCheck Report.
Please consider the following:
1) How is it that the iMac can generate an audible alert (at all), given preventative steps taken above?
2) The only way to fully mute the sound is to mute the computer. Not a viable or acceptable option.
2) Is there any way to determine if the system sound is being generated as a result of a "connection" or "pairing" between my iPhone 7 Plus, and my iMac. In other words, could there be a process, sourced from my iPhone, responsible for sound generation on my iMac?
Can anyone help me diagnose and provide a solution?
