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Old Nov 1st, 2019, 07:16 AM   #11
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That's a pity. Wonder if there's anything in Console around the time of the failure?
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Old Nov 1st, 2019, 07:27 AM   #12
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Well I looked but I had previously rebooted the Mac to restore the sound and so messages have been lost, but I will look next time it happens. As to what to do with any reportage I admit I haven't a clue.. Cheers
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Old Nov 5th, 2019, 12:22 AM   #13
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A quick mute and unmute sometimes restores sound for me.
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Old Nov 5th, 2019, 04:53 PM   #14
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Sys Prefs is switched to Headphones and I have not altered anything. I guess a complete format and reinstall is my only option.

Yikes...!!! I'm sorry I'm coming in a bit late here but that sounds like a complete overkill to use as a solution which may not even work.

You will have to use a logical process to trace down the problem and isolate the cause.

Have you even tried booting up in Safe Boot Mode but I have a feeling that doing so maykill the external speaker Jack but I'm not sure about that. But certainly worth a try.

Have you run Disk Utility and do any repairs that you can??

Have you tried just using the internal speakers???

How hot is your Mac running when the problem happens???

I use Mac Fan Control:
https://www.crystalidea.com/?source=fancontrol_mac


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Old Nov 5th, 2019, 06:04 PM   #15
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At the risk of completely taking over the message board - I do apologise to all .... here is the latest development ...
I was Airplaying music to the lounge area and playing a small game on my computer(sound turned off). Fine for a time. Suddenly the music stopped. I turned the game sound on but no sound. I looked at the menu bar and the sound icon showed 'Mute',
Sys Prefs showed Airplay (lounge room) and iTunes showed it was still playing the song. I adjusted the menu bar indicator from Mute to Full. Music returned through Airplay but game sound did not. Game played but suddenly quit. I quit Airplay, Sys Prefs showed Headphones (external Speakers) but Game had no sound, Music (on Computer) no sound - in fact iTunes had loaded the music track but wasn't playing it. Rebooted computer and all was well again. I picked up my hair from the floor and continued as before.
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Old Nov 5th, 2019, 06:41 PM   #16
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@bobloz
One thing to realize and especially with computer games, many developers do not follow the computer OS rules in their programming and and will gladly take over any available resources that they can and we'll also try and take over some resources that they shouldn't even be going near. They don't care as long as their game plays well for the user, and that's where the conflict comes in. But the trouble is, often it is not a pleasant experience for the user, especially if they are trying to run another application at the same time.

If you're going to play such games, I would suggest not trying to use any other applications.

I can also depend on your computer, the Mac OS and it's speed, the hard drives used and the amount of memory installed.

Try using just normal Mac applications for a bit and see how your Mac works with that, and especially try things that use your audio including YouTube etc.

And you do not have to apologize at all as you say ~ At the risk of completely taking over the message board.

It is a completely legitimate questions you are asking and it's a pleasant relief from some of the political BS and crap slinging that seems to go on and on and on in these forums. After all the site was called ehMac for a reason.

Don't forget to let us know how things are going. And hopefully they will improve.



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Old Nov 5th, 2019, 10:28 PM   #17
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Thanks for the reassurance Patrick. In answer to your previous post, I have run Disk Utility - nothing reportable, The Mac is not overly hot - it is elevated about 2cm with airspace underneath , I have 16 GB RAM, 2.8 GhZ, and the problem occurs with both External & Internal speakers. Even if I just run the music it still occurs after a time. There seems to me, no rhyme nor reason for this completely new occurrence - no new software added, Malwarebytes reports system is normal etc. The change came about after I installed the recommended update to iTunes. That's it. Apple cannot provide me with a solution.
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Old Nov 6th, 2019, 02:34 PM   #18
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That's it. Apple cannot provide me with a solution.

Bummer...!!! It may sound stupid but is there any chance that you are killing the sound accidentally with a keyboard shortcut or the touch bar or keypad or something???


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Old Nov 6th, 2019, 04:36 PM   #19
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Not at all. I have been running Macs now ever since the LC1 days and never had this problem and I have done everything I can think of.
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Old Nov 7th, 2019, 04:17 AM   #20
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One final thought for you, try downloading OnyX and running it to see if it will clear up the issue.

I have relied on OnyX for many years and find it fixes many issues. While I run Malwarebytes weekly, I run OnyX monthly to keep my MacBook Pro well-tuned. Just be very sure to run the appropriate version of OnyX built for your particular OS, High Sierra. If you have an SSD it runs quickly, if not it takes a while, be patient.

https://www.titanium-software.fr/en/onyx.html
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