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Level 1

14 points

audio glitches / pops when using external audio interfaces

This problem seem isolated to my MBP Early 2015 ; Retina 13-inch ; 3.1GHz Core i7 ; 16GB memory ; 512GB SSD ; Intel Iris 6100

I see console messages similar to this one when the glitches, pops occur

HALS_IOContext.cpp:1496:IOWorkLoop_HandleOverload: HALS_IOContext::IOWorkLoop_HandleOverload: Overload on context 256 current time: 15636818 deadline: 15636816

I do not experience the glitches and pops or console messages when using Built-In Output

The pops and glitches do not occur on older MBP models that I own.

I"ve ruled out just about everything but the MBP itself.

The problem occurs using different audio interfaces.

Roland Duo-Capture Ex - USB

Focusrite Clarett 2Pre - Thunderbolt

IconnectMidi2+ - USB

Motu Ultralite Mk3 Hybrid - USB

I have tried every combination of audio bitrate (16 or 24 bit ; 44.1kHz , 48kHz , 96kHz)

I can reproduce with Logic Pro X , MainStage and Reason.

I can reproduce with different IO Buffer Size (64, 128, 256...etc) within the DAW also.

I've reset the PRAM ; reinstalled OS. The problem occurs with El Capitan and Sierra.

Any suggestions or ideas what to look at next ?

thanks

Tim

Austin, Tx

Mac mini ; iPad ; pc, Mac OS X (10.6.5), None

Posted on Nov 19, 2016 11:46 AM

36 replies

Tclement11 Author

Level 1

14 points

Dec 10, 2016 2:49 PM in response to Pancenter

Thanks for the suggestion. I have already tried it. Yes, clean El Capitan Install. Also was a clean Sierra install.

Tclement11 Author

Level 1

14 points

Dec 14, 2016 7:35 PM in response to Tclement11

unfortunately 10.12.2 doesn't fix the problem.

Tclement11 Author

Level 1

14 points

Dec 14, 2016 7:36 PM in response to Tclement11

default	21:34:11.785579 -0600	com.apple.WebKit.WebContent	HALC_ProxyObject.cpp:184:GetPropertyDataSize: HALC_ProxyObject::GetPropertyDataSize ('stm#', 'inpt', 0, AI32): got an error from the server, 0x77686F3F
default	21:34:11.785634 -0600	coreaudiod	HALS_MIGServer.cpp:1753:HALS_Object_GetPropertyData_DAI32: HALS_Object_GetPropertyData_DAI32: the object does not implement the property
default	21:34:11.785681 -0600	com.apple.WebKit.WebContent	HALC_ProxyObject.cpp:418:GetPropertyData: HALC_ProxyObject::GetPropertyData ('stm#', 'inpt', 0, DAI32): got an error from the server, 0x77686F3F
default	21:34:11.788124 -0600	coreaudiod	HALS_MIGServer.cpp:1753:HALS_Object_GetPropertyData_DAI32: HALS_Object_GetPropertyData_DAI32: the object does not implement the property
default	21:34:11.788166 -0600	com.apple.WebKit.WebContent	HALC_ProxyObject.cpp:184:GetPropertyDataSize: HALC_ProxyObject::GetPropertyDataSize ('stm#', 'inpt', 0, AI32): got an error from the server, 0x77686F3F
default	21:34:11.788239 -0600	coreaudiod	HALS_MIGServer.cpp:1753:HALS_Object_GetPropertyData_DAI32: HALS_Object_GetPropertyData_DAI32: the object does not implement the property
default	21:34:11.788283 -0600	com.apple.WebKit.WebContent	HALC_ProxyObject.cpp:418:GetPropertyData: HALC_ProxyObject::GetPropertyData ('stm#', 'inpt', 0, DAI32): got an error from the server, 0x77686F3F

Indyuser

Level 5

4,617 points

Dec 14, 2016 7:39 PM in response to Tclement11

How about sample rate mismatch

Try everything at 44.1

Check hardware setting

Check audio midi setup (audio)

Make sure logic matches too

Tclement11 Author

Level 1

14 points

Dec 14, 2016 7:43 PM in response to Tclement11

default	21:40:47.837064 -0600	Logic Pro X	HALC_ProxyIOContext.cpp:1068:IOWorkLoop: HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload
default	21:40:47.836988 -0600	coreaudiod	HALS_IOContext.cpp:1496:IOWorkLoop_HandleOverload: HALS_IOContext::IOWorkLoop_HandleOverload: Overload on context 225 current time: 42940790 deadline: 42940944
default	21:40:47.840067 -0600	coreaudiod	HALS_IOA1Engine.cpp:349:EndWriting: HALS_IOA1Engine::EndWriting: got an error from the kernel trap, Error: 0xE00002EE
default	21:40:47.840088 -0600	coreaudiod	HALS_IOContext.cpp:1496:IOWorkLoop_HandleOverload: HALS_IOContext::IOWorkLoop_HandleOverload: Overload on context 225 current time: 42940927 deadline: 42941084
default	21:40:47.840139 -0600	Logic Pro X	HALC_ProxyIOContext.cpp:1068:IOWorkLoop: HALC_ProxyIOContext::IOWorkLoop: skipping cycle due to overload

Tclement11 Author

Level 1

14 points

Dec 14, 2016 7:49 PM in response to Tclement11

Problem is still occurring. Tried multiple sound interfaces (Roland, Clarett, iConnect). Glitches only when USB audio is used. Has nothing to do with midi. Very discouraging.

Sample rate, bit rate depth, matched OS and Logic. Also occurs in Reason so the problem is not with Logic, tried many variations. Works on my other MBP's. Seems to only affect the i7 processor model that I have.

Dec 22, 2016 7:54 AM in response to Tclement11

Same problem on my MacBook Pro Early 2015, here with 2.9GHz Core i5.
Clean installation with 10.12.2 did not fix this issue.

Pancenter

Level 6

14,644 points

Dec 22, 2016 10:54 AM in response to KorbinianT

Sounds like a firmware upgrade is required... (roughly equivalent to a PC BIOS adjustment).

I would contact Apple to see if something can be done.

Pancenter

Level 6

14,644 points

Dec 22, 2016 10:59 AM in response to KorbinianT

One question...

Are these Retina based MBP's

Have you tried running Logic in non retina mode?

Done through Logic's Info

Pancenter

Level 6

14,644 points

Dec 22, 2016 12:34 PM in response to Pancenter

Tclement11's MBP is Retina based, how about yours Korbinian?

Dec 22, 2016 12:41 PM in response to Pancenter

Mine is also Retina based. The problem is not only in Logic, is happens systemwide on higher load.

Tclement11 Author

Level 1

14 points

Dec 22, 2016 12:49 PM in response to KorbinianT

Mine is Retina, however I have two other MBP's that are also Retina. They don't experience the pops.

I'm beginning to think my problem is either firmware problem or a defect in the sound card. The random pops are always the same volume, regardless of the dynamic I'm playing. They are system wide including playing mp3's through a USB or Thunderbolt interface. CPU, disk and memory levels are not high.

I backed up my system experiencing the problem with Time Machine and restored it to the 2012 17" MBP. No changes and it works perfectly.

I took my MBP to the Apple store a few days ago. They sent it in for depot repair. I asked for a logic board replacement. Hopefully they will replace it. They wouldn't commit to it being replaced.

Tclement11 Author

Level 1

14 points

Dec 22, 2016 12:52 PM in response to Pancenter

I did try 'open in low resolution' mode and also lowered the system resolution. Neither solved the problem.

Tclement11 Author

Level 1

14 points

Dec 22, 2016 12:54 PM in response to KorbinianT

I have two Retina MBP's

the 13" early 2015 with i5 processor works great

the 13" early 2015 with i7 processor experiences the random audio pops (only through usb or thunderbolt interfaces). built in audio works as expected.

Tclement11 Author

Level 1

14 points

Dec 22, 2016 1:13 PM in response to KorbinianT

Sorry it is happening to you but glad to have some help resolving the problem.

audio glitches / pops when using external audio interfaces