Similar. But usually with other apps. Like the email notification or other apps. (Not in system preferences and use system sound effects)
Mojave and 48Khz
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MacBook Pro 2018 - Speakers Crackling
- Thread starter jaack
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Similar. But usually with other apps. Like the email notification or other apps. (Not in system preferences and use system sound effects)
Mojave and 48Khz
every time when you get mail notification while listening to music, you get those sound cracks?
i also did having this every time on High Sierra...since Mojave...almost never....i could replicate just once for now ...from almost 10-12 tryouts, and also, on itunes, i got everytime on High Sierra, when i was mute/unmute popping sound, since Mojave, this is gone too
I remain only with some pop up sound randomly when surface through timeline on youtube video
i also did having this every time on High Sierra...since Mojave...almost never....i could replicate just once for now ...from almost 10-12 tryouts, and also, on itunes, i got everytime on High Sierra, when i was mute/unmute popping sound, since Mojave, this is gone too
I remain only with some pop up sound randomly when surface through timeline on youtube video
but still, on yours it keeps it for 3-4 seconds?
when on mine occurred last just 1 ms or something like that
[doublepost=1538064180][/doublepost]i think a clean/wipe out/erase hdd and reinstall Mojave maybe fix this
I may have a bit more information.
I did what I should have done in the first place and created a new user account to test under. No glitches for external USB audio. So I switched back over to my usual account and disabled the following:
bluetooth
bluetooth PAN (networking)
iCloud
Still glitches. The I realized I was still running macs fan control. Turned it off. So far after an hour of running continuous audio, the *only* other glitch I've seen appears to be related to a SMCRTC (system management control real time clock).
So my theory is that the SMC controller (yeah related to the KPs some users have had) is still flaky) and that anything (ie macs fan control) that interacts with it aggravates the issue.
I did what I should have done in the first place and created a new user account to test under. No glitches for external USB audio. So I switched back over to my usual account and disabled the following:
bluetooth
bluetooth PAN (networking)
iCloud
Still glitches. The I realized I was still running macs fan control. Turned it off. So far after an hour of running continuous audio, the *only* other glitch I've seen appears to be related to a SMCRTC (system management control real time clock).
So my theory is that the SMC controller (yeah related to the KPs some users have had) is still flaky) and that anything (ie macs fan control) that interacts with it aggravates the issue.
Just so you know, we don't have an SMC on our new T2 equipped macs, iMac pro don't have it either. T2 took it's functionality.
Yeah. What I should have said was "SMC related functions controlled by the T2 chip."
Sorry, how can it be inside T2 if T2 itself is an arm based processor?
like A11
Sorry, how can it be inside T2 if T2 itself is an arm based processor?
15inch MBP 32gb i7 512gb
Using a pair of Sony MDRs with the ACC codec and I'm still getting these issues when a notification comes up. I can replicate this when I'm in System Preferences and playing with the sounds.
Mojave didn't seem to fix this.
The senior advisor I spoke to said it was a software issue and that it's a known problem. Engineering is apparently working on it but I don't want to wait for months possibly before those clowns fix it. And yes clowns, there's not really a different word to describe them looking at all the issues with the 2018 MBP.
Sorry, how can it be inside T2 if T2 itself is an arm based processor?
A system on chip (SoC) isn't just one processor. The T2 package includes SMC, chip for handling I/O, secure enclaves, and on-the-fly encryption.
Related to USB audio issues...
I ran another hour plus test and the only time the error occurred again was right after/during a system clock sync event (timed is the daemon which in turn appears to be kicked off by dasd). The glitch sort of makes sense since I'm running off of the internal clock and if the sync adjusts the overall internal clock, perhaps its not gracefully syncing any real time audio clocks depending on it. But that's some wild speculation on my part!
I ran another hour plus test and the only time the error occurred again was right after/during a system clock sync event (timed is the daemon which in turn appears to be kicked off by dasd). The glitch sort of makes sense since I'm running off of the internal clock and if the sync adjusts the overall internal clock, perhaps its not gracefully syncing any real time audio clocks depending on it. But that's some wild speculation on my part!
Specifically, the T2 doesn't include the traditional SMC, but it has taken over duties formerly performed by the SMC chip.
I shouldn’t have to keep explaining this. The T2, or just about any CPU/GPU/SOC these days, is a collection of units each with a dedicated function. The SMC is in the package and hasn’t been taken over by some other new something something. There is also an I/O controller, SSD controller, image processor, on-the-fly encryption unit, and Secure Enclave.
I saw a diagram of the layout last month but lost the link.
It appears that the controller-chip firmware that came with the 10.14.1 public beta
(16P51043b) solved all my audio related problems. Continuous audio stream without any dropouts or glitches through internal output and external DAC via usb.
Phew!
Edit: Sadly there are still dropouts over usb, but way less than before.
Makes me confident that the issue will be solved in the foreseeable future.
Still, customers shouldn't be beta testers.
(16P51043b) solved all my audio related problems. Continuous audio stream without any dropouts or glitches through internal output and external DAC via usb.
Phew!
Edit: Sadly there are still dropouts over usb, but way less than before.
Makes me confident that the issue will be solved in the foreseeable future.
Still, customers shouldn't be beta testers.
Last edited:
My good friend, does this include bluetooth? My major problems are with bluetooth, potentially due to the ACC codec. Secondly, will this be the next patch hopefully next week etc.?
Sorry, can't tell you anything about bluetooth, I don't use it.
The official 10.14.1 release is probably still a couple of weeks away.
A guy on gearslutz said that ableton is much less to be affected by that but I'm not an ableton user, and most recent logic pro 10.4.2 update brings up some good hope for us.
Though, on current release of mojave and LPX 10.4.2 drops are super super rare (atm producing for an hour, didn't noticed one so far)
you can try to force the use of Aptx via this Apple app if your headphones support this codec.
link: http: //www.mediafire.com/file/k4t7q15dq3cfocc/Bluetooth+Explorer.app.zip
Well...
I was just watching an interview on youtube, no boot camp.. plain High Sierra, and there was an awful sound, like the computer was struck by a lighting and my speakers now sound like an AM radio, Crackling like hell, no treble whatsoever, this is insane!!!
How can a 2 month computer, just blew its own speakers out of nowhere. This is a ridiculous nonsense..
Macbook Pro mid 2018
I was just watching an interview on youtube, no boot camp.. plain High Sierra, and there was an awful sound, like the computer was struck by a lighting
and my speakers now sound like an AM radio, Crackling like hell, no treble whatsoever, this is insane!!!How can a 2 month computer, just blew its own speakers out of nowhere. This is a ridiculous nonsense..
Macbook Pro mid 2018
let me guess, reboot or just simple restart of process "coreaudiod" through terminal help? =)Well...
I was just watching an interview on youtube, no boot camp.. plain High Sierra, and there was an awful sound, like the computer was struck by a lighting
How can a 2 month computer, just blew its own speakers out of nowhere. This is a ridiculous nonsense..
Macbook Pro mid 2018
