HELP NEEDED with USB Audio Interface and noise issue

I've been trying to fix this issue for weeks now. Ultimately, this is the only issue with my Hackintosh build. I am using a 24-bit, 19...

I've been trying to fix this issue for weeks now. Ultimately, this is the only issue with my Hackintosh build.

I am using a 24-bit, 192khz USB powered audio interface and it is producing a subtle bit-crushing noise when there is no audio or the audio coming through is very low.

The interface does not produce the issue when plugged into my iMac or MacBook Pro - only happens on my Hackintosh.

Here is what I have tried so far:

  • I am using balanced cables to connect my speakers.
  • I have tried 3 different USB cables - all have the same issue.
  • I have tried using different cables to connect my speakers.
  • The headphone output does not appear to create the same noise (when listening via headphones), but if I connect my speaker to the headphone jack - it produces the noise.
  • I have ensured that my output is set to use the 24bit/192khz option in the Apple Midi utility.
  • I have created my own SSDT (via RehabMan's awesome guide) and have ensured that only my active USB ports are properly displaying in the IOReg
  • I have verified that the USB power on my interface is drawing the same mA as my MacBook Pro and iMac (500mA)
  • The data rate for my interface via USB is displaying as "up to 480mb" (same as my iMac and Mackbook Pro)
  • I have used both HDMI and DP cables to connect my monitor.

The issue seems to be influenced by what is drawn on the screen - some activities will introduce more noise (moving windows, opening apps etc.)

My Hackintosh has been setup using the Vanilla install and I have the following kexts for my setup:








I am using the iMac18,3 for SMBIOS (changed from iMacPro) and no difference. If there is anyone out there who can offer some help I would greatly appreciate it.. so frustrated with this...

submitted by /u/Poolicot
[link] [comments]



@Tonymacx64 - Latest Comments,51,about,6,amd,11,app,1,apple,4083,apps,10,asus,1,ati,8,audio,15,beta3,1,bios,3,boot,32,chimera,5,cmos,1,compatible,1,cpu,11,dev,3,donate,2,download,156,dsdt,19,error,1,fix,86,forum,148,game,1,gpu,43,guide,101,guides,3,hack,1,hackintosh,14760,hardware,14,hd,4,iatkos,614,icloud,3,ide,1,ideneb,1,imac,1,imessage,2,india,4,insanely,46,install,6,ipad,1,iphone,1,kakewalk,2,kernel,7,kexts,34,l,1,l1,119,l2,103,l2m,1,l3,11,l4,3,l5,2,laptop,3,leopard,2,linux,1,lion,181,mac,114,macbookpro,1,MacBreaker - Latest Comments,281,ml,280,ml2,1,ml3,2,mlm,3,motherboard,10,multibeast,7,multimedia,1,myhack,1,network,9,news,4215,niresh,19,nvidia,9,osxdaily,112,patch,1,requirements,1,s3,21,sata,1,sl,57,smbios,1,snowleopard,83,software,5,themes,2,tools,64,torrent,3,trick,1,uefi,1,unibeast,2,update,17,usb,1,users,1,v7,5,video,30,virtualmachine,3,vmware,3,wallpaper,4,windows8,4,
iATKOS Inside: HELP NEEDED with USB Audio Interface and noise issue
HELP NEEDED with USB Audio Interface and noise issue
iATKOS Inside
Loaded All Posts Not found any posts VIEW ALL Readmore Reply Cancel reply Delete By Home PAGES POSTS View All RECOMMENDED FOR YOU LABEL ARCHIVE SEARCH ALL POSTS Not found any post match with your request Back Home Sunday Monday Tuesday Wednesday Thursday Friday Saturday Sun Mon Tue Wed Thu Fri Sat January February March April May June July August September October November December Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec just now 1 minute ago $$1$$ minutes ago 1 hour ago $$1$$ hours ago Yesterday $$1$$ days ago $$1$$ weeks ago more than 5 weeks ago Followers Follow THIS CONTENT IS PREMIUM Please share to unlock Copiar todo el código Seleccionar todo el código All codes were copied to your clipboard Can not copy the codes / texts, please press [CTRL]+[C] (or CMD+C with Mac) to copy