Got a tip for us?
Let us know
Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.
iMac Pro Imac Pro Sound Glitches
- Thread starter majestice
- Start date
- Sort by reaction score
I've never experienced this video speed issue in youtube (first time I've heard about it - you should send a bug report to Apple), but some videos lack sound in Safari when played through an external sound card, though they play properly via other Internet browsers (Chrome, Firefox etc.). Ie. another issue that Apple has failed to fix so far...
Examples (Scott Adams videos):
www.youtube.com/watch?time_continue=418&v=0QWl_hvhFcY
www.periscope.tv/w/1mnxeXoNAnAJX?q=Scott+Adams
Examples (Scott Adams videos):
www.youtube.com/watch?time_continue=418&v=0QWl_hvhFcY
www.periscope.tv/w/1mnxeXoNAnAJX?q=Scott+Adams
Last edited:
I am only using internal sound, and still experiencing this problem. Even after updating to Mojave. Very frustrating.
I still have some sound issues with Safari, but Firefox and Chrome always work. Safari has been disappointing the last year, too many bugs.
It started with my iMac Pro (standard version) and YouTube videos in Safari, and also in Chrome, but a little less.
It also happens with movies and music videos I stream via the iTunes Store.
Very annoying.
Will report this to the Apple support people tomorrow and see what they advise.
It also happens with movies and music videos I stream via the iTunes Store.
Very annoying.
Will report this to the Apple support people tomorrow and see what they advise.
Hey Everyone. yes, same here. I currently have an open case with Apple as of yesterday. Full time Pro user here so this is majorly unacceptable for me as I'm sure it is for most, if not all of you. Have spent days troubleshooting but to no avail. iMac Pro baseline model. High Sierra. It definitely seems like a hardware issue. Same problem happening whether working on Logic Pro X, or watching you tube, or streaming a movie from an external drive and sometimes even when getting an alert on imessage! Before finding this forum, I though I had maybe just ended up with a lemon. Apparently it's not just me. The problem has been intermittent but I'm looking/trouble shooting ways to recreate the problem. I will repost back soon. I would highly recommend everyone who has posted here to open a support case ticket with Apple if that is something they have not already done. The more of us who do this, the more likely it will be they will fix it, if possible.
Couple of things for you all to try:
1) If using Logic Pro X. Launch a session you're working on, put the session in cycle mode and hit play. Walk away and go and do do something else with your valuable time for 50 minutes to an hour. Return and see if the problem has occurred and is still happening? If not, let the cycle continue for another 50 minutes. It seems that once the problem starts, it will continue until you hit stop. It also seems like 50 minutes or so is how long it takes to happen. At least for me in a controlled test.
2) Also or alternatively, try this. If you have an external hard drive, stream a movie from it. Do the same thing. Start the movie and go get a nice lunch. Return after 50 minutes or so and see if the problem has occurred. If it hasn't, let the movie continue to run its course.
[doublepost=1541962338][/doublepost]
Hi, did you ever hear back from Apple?
Couple of things for you all to try:
1) If using Logic Pro X. Launch a session you're working on, put the session in cycle mode and hit play. Walk away and go and do do something else with your valuable time for 50 minutes to an hour. Return and see if the problem has occurred and is still happening? If not, let the cycle continue for another 50 minutes. It seems that once the problem starts, it will continue until you hit stop. It also seems like 50 minutes or so is how long it takes to happen. At least for me in a controlled test.
2) Also or alternatively, try this. If you have an external hard drive, stream a movie from it. Do the same thing. Start the movie and go get a nice lunch. Return after 50 minutes or so and see if the problem has occurred. If it hasn't, let the movie continue to run its course.
[doublepost=1541962338][/doublepost]
Hi, did you ever hear back from Apple?
Having the same issue...it'll happen every so often just constant crackling. iMac Pro 8 Core standard Config, running High Sierra. Doesn't happen when I engage my UAD Apollo external interface, only with the internal sound card. This is highly annoying, following hoping for a solution.
I just wanted to chime in because I've been experiencing this problem since I bought my iMac Pro in July.
I edit a lot of video and it seems to happen most when I'm in Premiere or After Effects and I'm listening to any other audio like Youtube, Spotify, and Sirius. I can sometimes snap it out of it when I click back and forth to the explorer window and Premiere. It can be really irritating, so I'm glad I'm seeing people talking about it.
I posted a reference video on Youtube a while ago that I will link to..
I edit a lot of video and it seems to happen most when I'm in Premiere or After Effects and I'm listening to any other audio like Youtube, Spotify, and Sirius. I can sometimes snap it out of it when I click back and forth to the explorer window and Premiere. It can be really irritating, so I'm glad I'm seeing people talking about it.
I posted a reference video on Youtube a while ago that I will link to..
I can't say I've run exactly into this, but pretty similar: my iMac Pro is perfect in Mac OS, but in Bootcamp Windows, the thing that you are describing happens once every 30 minutes or so EVERY SINGLE TIME. So far I've found out that disabling and then enabling sound output in the sound control panel fixes it temporarily - otherwise, no success. Installations and reinstallations don't fix it at all.
I just bought an iMac Pro and I'm having this issue. It happens only when building a project on Unity or Xcode. It's really annoying that a machine this expensive seems to struggle while doing it.
Anyone got an official answer from Apple? I don't want to take my machine to repair at this point because I'm in the middle of an important project.
Anyone got an official answer from Apple? I don't want to take my machine to repair at this point because I'm in the middle of an important project.
I am experiencing the same sound issues on my iMac Pro: Distorted sound when working with sound in multiple applications. I am working with clients in the room and this is unacceptable for a $8000 computer.
Has anyone had any luck with Apple support? I took my iMac to the genius bar, they did a clean install of macOS and claimed that the problem is fixed but the issue is still there. It is hard to reproduce the error because it occurs randomly (Anywhere between 10 to 20 times in an 8-hour work day for me).
Apple must know about this sound issue by now. Feels like they are strategically avoiding to acknowledge the problem.
IMAC PRO 27"/3.0 10C/VG64/64GB/2TB
Has anyone had any luck with Apple support? I took my iMac to the genius bar, they did a clean install of macOS and claimed that the problem is fixed but the issue is still there. It is hard to reproduce the error because it occurs randomly (Anywhere between 10 to 20 times in an 8-hour work day for me).
Apple must know about this sound issue by now. Feels like they are strategically avoiding to acknowledge the problem.
IMAC PRO 27"/3.0 10C/VG64/64GB/2TB
Last edited:
@moma3 I talked to Apple Support today and they suggested me to do a SMC reset. I did and it solved the issue for approximately 2 hours. Now it's back again...
I also figured out that if I reset the audio system through the terminal it fixes the issue for a short period of time as well.
Any how, unfortunately at the moment I can't leave my Mac for repair (no Apple Store in my country but there are some approved partners), but once I have some free time I'll definitely do it. And yeah, it's incredibly annoying to have paid so much money for a machine that has this kind of issues.
I also figured out that if I reset the audio system through the terminal it fixes the issue for a short period of time as well.
Code:
sudo killall coreaudiodAny how, unfortunately at the moment I can't leave my Mac for repair (no Apple Store in my country but there are some approved partners), but once I have some free time I'll definitely do it. And yeah, it's incredibly annoying to have paid so much money for a machine that has this kind of issues.
@luispedrofonseca Thank you for the advice, that is good to know. I can usually also fix the sound by switching back and forth several applications and starting and stopping sound playback.
However, these are just workarounds - not a real fix. Like many of you having this problem, I find this not acceptable in a professional production environment.
However, these are just workarounds - not a real fix. Like many of you having this problem, I find this not acceptable in a professional production environment.
Well it finally hit me today. Working in Logic X for a couple of hours when playback started glitching, and distorting. Base iMac Pro (8 core, 32gb, Vega 56) running High Sierra 10.13.6.
Multiple projects, just playback and light editing ( I wasn't doing any external sound recording today).
Haven't done anything other than basic quit, reboot, etc. I'm not going to go through a whole bunch of trouble when it's clear than nothing fixes the issue right now.
Extremely frustrating.
Multiple projects, just playback and light editing ( I wasn't doing any external sound recording today).
Haven't done anything other than basic quit, reboot, etc. I'm not going to go through a whole bunch of trouble when it's clear than nothing fixes the issue right now.
Extremely frustrating.
Last edited:
Would be nice to know if/how someone solved the issue at Apple. Lots of people saying they went to Apple but no one reported back. Which is probably a good sign, because if the issue wasn't solved I assume they'd be back here. 
Probably because Apple's stock response for every problem is "wipe and start over".Would be nice to know if/how someone solved the issue at Apple. Lots of people saying they went to Apple but no one reported back. Which is probably a good sign, because if the issue wasn't solved I assume they'd be back here.
Followup on this it appears that there was some sort of issue with audio interface (or possible user error by me) where the sample rate in Logic was set to a value that isn't supported without the interface and this was causing the freakout. At least I think so as the issue hasn't repeated itself since then. Anyway if something changes I'll post here again.