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Audio Problem in VirtualBox (Win81x64/Haswell)

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I installed Niresh's OSX Mavericks on an ASUS Laptop in the latest VirtualBox,
following the detailed instructions at MacBreaker http://tinyurl.com/lt7qwfg .

Hardware:       ASUS N550JK
Processor:      Intel Core i7-4710HQ
Video-1:        Intel HD Graphics 4600
Video-2:        NVIDEA GeForce GTX 850M
Audio:          Realtek High Definition Audio
Memory:         16 GB DDR3 SDRAM
Host OS:        Windows 8.1 (64bit)
Guest OS:       OS X Mavericks 10.9.0 ? (Niresh Distro)
VirtualBox:     4.3.14r95030

Everything worked pretty much flawless, by carefully setting up the VM.
The only thing that doesn't work is Audio. I get weird clicking and other
noises when changing and typing in terminal. I have tried changing stuff
in the Audio settings, but the problem prevails and the noises change only
slightly. Also at one point when trying mess with VoodooHDA settings,
there must have been some kind of kernel crash as the machine suddenly
refused to respond and CPU at 100%.

So my conclusion is that I don't have the right kernel drivers for the
Audio provided by the VirtualBox machine.

The VirtualBox Audio settings are:
Host Driver:  
          Null Audio Driver
        * Windows DirectSound

        * Intel HD Audio
          ICH AC97

And on the OSX "Sound" settings side they are:
Sound Effects:
          Speaker (Black Unknown)
        * Headphones (Green Front)
          SPDIF-out (Black Rear)
          Speaker (Black Unknown)       Apple speaker port
        * Headphones (Green Front)      Headphone port
          SPDIF-out (Black Rear)        Optical digital-out port
          Microphone (Pink Front)       Microphone port
          SPDIF-in (Black Rear)         Optical digital-in port
          CD (ATAPI)
And on the OSX "VoodooHDA" settings side they are:
        * 1: Speaker (Green Rear)
          2: Headphones (Green Front)
          3: SPDIF-out (Black Rear)
          4: Line-out (blue Rear)
          5: Microphone (Pink Front)
          6: SPDIF-in (Black Rear)
          7: CD (ATAPI)

        *  /AppleACPIPlatformExpert/PCI0@1e0000/AppleACPIPCI/HDEF@5

[ ] Use SSE2
[ ] Enhance stereo


I have no idea what would be the proper settings for this controller.
Any suggestions?

Please note that I'm new to OSX and have little experience and understanding
of how to find/use/install Kext files and editing plists. So any help would
be much appreciated.

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