sudo srm -rf /System/Library/Extensions/AppleOnboardAudio.kext
sudo srm -rf /System/Library/Extensions/AppleUSBAudio.kext
sudo srm -rf /System/Library/Extensions/AppleDeviceTreeUpdater.kext
sudo srm -rf /System/Library/Extensions/IOAudioFamily.kext
sudo srm -rf /System/Library/Extensions/VirtualAudioDriver.kext
sudo touch /System/Library/Extensions