Can't use simultaneous audio inputs anymore

Dean Argent

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2:16 PM
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1
Hello folks --

I USED to be able to talk on Skype using my mic input, record my line input with Audacity, record my Stereo Mix with another program, and record my USB audio interface with yet another recording program -- all at the same time. This was all using the built-in cheapo Realtek High Definition sound on my motherboard. I do streaming and broadcasting and need to do all this and was very happy with the setup.

SUDDENLY, I can't do that anymore. Windows now allows me only to record off two things at once maximum, sometimes three. I used to be able to do four at once if you include Stereo Mix and my USB audio interface. Now I can only use my mic and the stereo mix -- or the stereo mix and the USB interface -- or the mic and the USB interface -- but generally ONLY two at a time. The ones that work have to be set to "default device" or "default communications device" for them to work. The only time I can get THREE to work simultaneously is if I set my USB interface to "default device" and the mic to "default communications device." That allows me to record off Stereo Mix too for some reason. But the main line input becomes dead and no recording program can record from it.

It seems as if my system has two A/D converters, so I can only convert two analogue stereo audio signals at a time. I understand that. But my system USED to ALSO understand that neither the USB interface nor the Stereo Mix tie up an ADC, so they can be used simultaneously with the Line and Mic inputs. But now it stopped understanding that!

Why would things suddenly change like this? What can be done about it, if anything?
 

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My Computer

Computer type
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Computer Manufacturer/Model Number
Asus
OS
Windows 7 Home premium x64
CPU
i5
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Asus
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8GB
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built in
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I don't have an answer for you but this is the first I've seen of someone posting about multiple audio at the same time.
I have a recording studio (using Sonar) and when I'm recording I only use my interface unit (MOTU 896mk3 Hybrid). I've left other things active and it caused interference with recordings.
 

My Computer

Computer type
PC/Desktop
Computer Manufacturer/Model Number
My Own Build
OS
Windows 10 64 bit
CPU
Intel i7 6700K
Motherboard
ASUS ROG Maximus VIII Hero
Memory
16GB Corsair Dominator
Graphics Card(s)
Intel CPU Graphics
Sound Card
RealTek
Monitor(s) Displays
27" Dell S2719dgf
Screen Resolution
2560X1440
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1 TB Samsung 850 EVO SSD for Win 10 Pro
500GB Samsung 850 EVO SSD for Win 10 Insider
2 TB drive for backup
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EVGA Supernova 750G2
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BeQuiet Silent Base 600
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Deepcool Captain 120EX
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Microsoft Wireless 2000
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Microsoft wireless
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100 MB/sec (Cable)
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Microsoft Defender and Malwarebytes
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Edge/Firefox
Other Info
Cakewalk (Sonar) by BandLab and Studio One 4.1 Pro recording studio software. MOTU 896Mk3 Hybrid recording interface, Frontier Tranzport wireless control unit, Behringer X-Touch Control Surface.
Five USB connected optical drives for CD Audio production using Nero BurningROM
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