GrayHill

I've been using my buddy's Focusrite for a while now and it'll glitch out in the same way once every few minutes. It's frustrating but I'm just dealing with it right now.

I just bought and tried out the Behringer UMC404HD and it was just as glitchy as the Presonus Audiobox 44VSL Neither of these devices use drivers for compatibility with mac. My friend's Focusrite Scarlett 2i2 worked fine on my setup without any software installed. Our plan is to switch interfaces for a bit and if the Focusrite works well I'll probably buy one with four inputs. It seems to me that many audio interfaces have compatibility issues with the new M1 chip (I have the M1 Pro chip):

Just plugged in a new interface that I bought and I'm getting the same issue. Also found out that my itunes is doing this as well when running through the interface. Both USB-C ports are doing this. I guess this is no longer a Logic Pro X problem.

Tried out my setup on my guitar player's interface and everything worked great. Decided to buy a new interface since that's where the problem is. Not sure what's up with the audiobox. I'm assuming years of extensive use have finally taken their tole.

Thanks for the reply! Yeah I tried it and it didn't change anything :\

Problem When the output is set to "External Headphones" and the input is set to "None" or "Macbook Pro Speakers", Logic runs smoothly. I've been working on these songs on the road all week with no problems. When I switch the output or input to my Audio Interface (PreSonus AudioBox 44VSL), it starts to glitch out the playback. The playhead will unpredictably move to the beginning and sometimes the audio cuts out for a moment. The Logic runs fine through my headphones even when the interface is plugged in, it only glitches when my output or input is set to the Interface. This was not happening last week. Here's a video of the glitch on google drive: https://drive.google.com/file/d/16fWHoWl3EKjgb8Yj-Fvy9wC0owGbpgzi/view?usp=sharing I tried Changing I/O Buffer Size, reinstalling Logic, updating my OS, rebooting my laptop, and clearing my NVRAM. Nothing helped. Other Observations I tried recording while the glitching was happening and the latency would keep changing. Sometimes there would be no latency, then I would hear a blip and suddenly there would be a delay on the input monitoring, then it would switch back. I would keep singing in tempo, but on playback my voice would switch from being before the beat to being on the beat. Specs Logic: 10.7.2 Audio Interface: PreSonus AudioBox 44VSL MacBook Pro (14-inch, 2021) Chip: Apple M1 Pro OS: Monterey 12.2.1 My CPU usage maintains about 25% while the glitch occurs.

Do you have "Low Latency Monitoring Mode" enabled? On your toolbar: Record -> Low Latency Monitoring Mode This might fix the issue.

Thank you all for your help Yes all 6 inputs are showing up in Logic Although: In the video that Trevor.T. posted, the guy says that Logic reads input 1 as input 3 on the H6, and input 2 as input 4 due to the 2 channel extension on top of the device. I havent had the chance to try this yet and I don't know how i would've missed this yesterday but it would make sense with how it has been acting with Logic.

Will do

Just tried it, nothing. Thank you so much for your help! I'm starting to think that it might be the cable connecting the H6 to my Mac, I'm going to go buy a new one tonight and try it.

I just turned on Input Monitoring and i'm still getting no readings on the fader

yes i did! It didn't do anything for me

Hi! If anybody can help it would be greatly appreciated. I'm using a Shure SM-58 and a Shure SM-57 plugged into a Zoom H6 recorder and using it as an audio interface for Logic on Inputs 1 and 2. Yesterday it was working fine but today I must have accidentaly changed a setting or something! The Zoom H6 is definitely recieving audio, i attatched a photo of the levels, but on Logic's mixer no audio is coming through. H6 is selected as the input device, the output is "Built-in Output" Recording is enabled but Logic's faders aren't getting any readings. One thing i noticed is that in: Logic Pro X > Preferences > Audio > I/O Assignments > Input, there aren't any options. I've never opened this setting but I'm assuming something should be here. I'm using version 10.3.1 Thanks for any help!