I never used to have any problems recording until I tried in the last couple of days, in this instance I'm having the issue with Rocksmith 2014 in particular. I did need to update my Java version, it only stopped the problem temporarily and by temporarily I mean minutes. I attempted to record footage on a couple of other games just before posting this (Interstellar Marines and Arma 3) with no apparent problems or errors encountered.
My Environment Info:
Quote[Dxtory]
Version: 2.0.128
UID: 87ead185-5463-4f9b-8578-b22bb0aca000
[Dxtory Files]
InstallPath: C:\Program Files (x86)\ExKode\Dxtory2.0
AppNames.txt Size: 1,047 bytes SHA1: 40cd39ab435dbcb3d44eba72b737a05b9a14410b
AudioStreamSplitter.exe Size: 37,424 bytes Ver: 2.0.0.1 SHA1: a2a2c79530d8b6bf8a2babdcf1efba3e5584c0ad
AudioStreamSplitter_ja.txt Size: 134 bytes SHA1: 489a5264d73a47edcce7c92edb131cf63e5e5709
AVIFix.exe Size: 72,192 bytes Ver: 2.0.0.119 SHA1: 7a09d66397e59a821aa710e53f9e241f77a7792a
AVIFix_ja.txt Size: 288 bytes SHA1: 9cab20780686687b84f604c77c73aaae3fd8126d
AVIMux.exe Size: 161,280 bytes Ver: 2.0.0.120 SHA1: 5196d86b22e66459b4dececc675099f8dd16422b
AVIMuxCore.dll Size: 178,176 bytes Ver: 2.0.0.3 SHA1: 77f91e5cbdb6516492937b09e8779fbfce339ad0
AVIMux_ja.txt Size: 1,701 bytes SHA1: fa240715d701f450bb95377aa8517a252329b619
CryptData.pup Size: 84 bytes SHA1: cf9d724807f965d372da4d168bebd78c5258d6ae
Dxtory.exe Size: 576,560 bytes Ver: 2.0.0.128 SHA1: d80062911606b6f963bed25a41b179a83efe95a7
Dxtory64.exe Size: 102,448 bytes Ver: 2.0.0.127 SHA1: cc69798363aac9c1040766a0e79e1ae1757b1ee2
DxtoryCore.dll Size: 6,876,720 bytes Ver: 2.0.0.128 SHA1: f32e541ee725901f7ab07793fea72ebd52c57ce4
DxtoryCore64.dll Size: 6,554,160 bytes Ver: 2.0.0.128 SHA1: d6a6b8d5a4d119a40f85ed5eb69a1f10e7bd02a1
DxtoryHK.dll Size: 154,672 bytes Ver: 2.0.0.126 SHA1: ad2429d46bf8002a104e27297e84173256910f71
DxtoryHK64.dll Size: 173,104 bytes Ver: 2.0.0.126 SHA1: 3a126079e0fb66e05c016d620bea6cb79061673b
DxtoryMM.dll Size: 1,125,936 bytes Ver: 2.0.0.126 SHA1: 798cd56c8dd928496e34fcaba11aa5d7e159b20c
DxtoryMM64.dll Size: 1,137,712 bytes Ver: 2.0.0.126 SHA1: 5211c132c7c4b7751b65ba375e3b832e5decb70e
DxtoryVideo.dll Size: 273,408 bytes Ver: 2.0.0.97 SHA1: b9c1ff13a061e189affef9ae37f5ae142450b189
DxtoryVideo64.dll Size: 303,616 bytes Ver: 2.0.0.97 SHA1: 497ef3f62908d7a1f9362fc347198b900fc7c131
DxtoryVideo64_Install.bat Size: 28 bytes SHA1: 308ae1e37b5e28ff7134beb319faad48280068b0
DxtoryVideo64_Uninstall.bat Size: 31 bytes SHA1: 3fbf8d3c3a5b375eda07e47a64534b91c8df5139
DxtoryVideoSetting.exe Size: 122,368 bytes Ver: 2.0.0.119 SHA1: adb248b7eca7001e64ba19054807ab6556126a87
DxtoryVideoSetting_ja.txt Size: 1,675 bytes SHA1: e532f36bd5ac6255659d240180637484661f0c83
DxtoryVideo_Install.bat Size: 26 bytes SHA1: b00e69772cc1cae9e86fe2b70ca290c488723fd7
DxtoryVideo_Uninstall.bat Size: 29 bytes SHA1: 0b0202cbc7fba373f42e1a6916fc2ad01edaa627
Dxtory_ja.txt Size: 17,473 bytes SHA1: 279546d8f8ea418fd9fb48d357986103d5bf5b4c
EULA_en.txt Size: 1,356 bytes SHA1: 340c6b3425ab78d83c6a8bd344b6cc58d152ce8f
EULA_ja.txt Size: 1,814 bytes SHA1: cded0d38ec6a1cb0e86bc264496deaa28082cb51
ignore_module_list.txt Size: 979 bytes SHA1: b21c3c09c8c0ee4f9f119a53f9c0b23d278261f8
LicReg.dat Size: 7,390 bytes SHA1: f46e444f53f248e5ec85c056a9d2ce4d839bda43
LicReg.exe Size: 96,816 bytes Ver: 2.0.0.4 SHA1: 0d236ac1394a97d35a67c63ec15e45a80f87db5b
LicReg_ja.txt Size: 707 bytes SHA1: 981af64897276c22867952f4972d9c29c6ee35e7
RawCapConv.exe Size: 210,480 bytes Ver: 2.0.0.128 SHA1: cac5e150375323370f68fd73c3e9806d003f82e5
RawCapConv_ja.txt Size: 1,869 bytes SHA1: 12086976f07abfc8d435abeee6c450c3cb2b07cd
RCStream.dll Size: 164,352 bytes Ver: 1.0.0.76 SHA1: 31266452f142cd7c856384945ffc410b2c9c8be9
readme.txt Size: 1,322 bytes SHA1: f8b7e31de7927309f7f3e03936374837906a94d9
Src16x10_Dest4x3.png Size: 40,081 bytes SHA1: 3b4f6332b8b3129ee351a9c96a9c4ac7f6f7a4cd
Src16x9_Dest4x3.png Size: 40,179 bytes SHA1: fcec824f4e95f7becf65bbabcc1a99c1470b99a1
unins000.dat Size: 22,616 bytes SHA1: 12df05ee3af92a1769a803880f122a6d0987d149
unins000.exe Size: 1,195,568 bytes Ver: 51.1052.0.0 SHA1: 4785da03210fb503e04f3b0d87424a405081b7d4
unins000.msg Size: 22,701 bytes SHA1: ab7961d64f8b22503c9c7ca4b335fa539b0278a3
UpdateChecker.exe Size: 93,696 bytes Ver: 2.0.0.0 SHA1: 221bd3663f4393b368ebf74d1a892f9379ddbe44
UpdateChecker.ini Size: 238 bytes SHA1: 796da23b4a505bf2ef370dc271d1a80585dff6e2
UpdateChecker_ja.txt Size: 190 bytes SHA1: 969913786a3497f3e448572f7810ee9814314928
[System Information]
CPU: AMD FX(tm)-4170 Quad-Core Processor
CPU Instruction Set: MMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AES EMMX SSE4a XOP FMA4)
OS: Microsoft Windows 7 Professional x64
OSVersion: 6.1.7600
OSLanguage: 1033
ServicePack: Service Pack 1
Memory0: BANK0 4,294,967,296 bytes
Memory1: BANK1 4,294,967,296 bytes
TotalMemory: 8,589,934,592 bytes
Total Physical Memory: 8,571,183,104 bytes
Available Physical Memory: 6,072,418,304 bytes
Total Page File: 17,140,424,704 bytes
Available Page File: 14,146,138,112 bytes
Total Virtual Memory: 2,147,352,576 bytes
Available Virtual Memory: 1,755,860,992 bytes
PerformanceCounterFrequency: 4120195 (0x3EDE83)
VideoCard: NVIDIA GeForce GTX 760 Memory: 2,147,483,648 Processor: GeForce GTX 760 DriverVer: 9.18.13.4752 DriverDate: 2015-02-05 00-00-00
Display0: 1920x1080 32bits 60Hz
SoundDevice: NVIDIA Virtual Audio Device (Wave Extensible) (WDM) Manufacturer: NVIDIA
SoundDevice: USB Audio Device Manufacturer: (Generic USB Audio)
SoundDevice: NVIDIA High Definition Audio Manufacturer: NVIDIA
SoundDevice: VIA High Definition Audio Manufacturer: VIA Technologies, Inc.
SoundDevice: USB Audio Device Manufacturer: (Generic USB Audio)
[Audio Device]
Speakers (Turtle Beach USB Headset) - CoreAudioOut
SPDIF Interface (TX1) (VIA High Definition Audio) - CoreAudioOut
SONY TV-4 (NVIDIA High Definition Audio) - CoreAudioOut
Speakers (VIA High Definition Audio) - CoreAudioOut
HD Audio HDMI out (VIA High Definition Audio) - CoreAudioOut
Microphone (Rocksmith USB Guitar Adapter) - CoreAudioIn, Volume 17
Stereo Mix (VIA High Definition Audio) - CoreAudioIn, Volume 100
Microphone (Turtle Beach USB Headset) - CoreAudioIn, Volume 50
[Video Codec]
Dxtory Video Codec FCC:xtor
Cinepak Codec by Radius FCC:cvid
Fraps Video Decompressor FCC:fps1
Intel IYUV codec FCC:i420
Intel IYUV codec FCC:iyuv
Lagarith Lossless Codec FCC:lags
MainConcept DV Codec 2.0.4 FCC:dvsd
Microsoft MPEG-4 Video Codec V1 FCC:mpg4
Microsoft MPEG-4 Video Codec V2 FCC:mp42
Microsoft MPEG-4 Video Codec V3 FCC:mp43
Microsoft RLE FCC:mrle
Microsoft Video 1 FCC:msvc
VP60® Simple Profile FCC:vp60
VP61® Advanced Profile FCC:vp61
VP62® Heightened Sharpness Profile FCC:vp62
XviD MPEG-4 Codec FCC:xvid
[Audio Codec]
Microsoft IMA ADPCM
Microsoft CCITT G.711
Microsoft GSM 6.10
MS-ADPCM
NCT ALF2 CD Audio CODEC
PCM
IEEE Float
[License Information]
License: Registered
Expire: Unlimited
LicVerify: 4989b2ce7bdea3f12f837cd4ddb5c03d22ba3acf
[Additional Information]
Dxtory_log.txt: Empty
ErrorLog.txt: Available Size=16840
[Global Setting]
OptionFlag=
[Ignore List]
======================================================================
[Profile]
Name: Default
Path:
[Overlay]
Option: Left Top VidoeFPS WriteFileFPS RecordState
Color: Sleep FF00FF00, Active FFFFBC00, Movie FF00FF00, ScreenShot FF00FF00
[Folder]
x D:\Video Capture Speed: 0MB/sec Free: 135,753,351,168 Total: 300,066,795,520 Format: NTFS
SSFolder:
[HotKey]
MovieCapture: F8 (0x00000042)
PushToTalk: None
ScreenShotSingle: F11 (0x00000057)
ScreenShotRepeat: None
ScreenShotAuto: None
ToggleStatus: None
MovieCaptureFrame: None
ScreenShotCaptureFrame: None
[Movie]
Clipping:
ClipMargin: 0,0,0,0
ClipSize: 0,0
Scaling: Percent 100% 0x0
Codec: Lagarith Lossless Codec, Quality 10000, KeyFrameRate 15, DataRate 0
FrameRate: 30
Output: File AVI
Option: IncludeCursor
[Audio0]
Enabled: True
PushToTalk: False
Device: Speakers (VIA High Definition Audio)
Codec: PCM
Format: PCM 48000 Hz, 16 bit, Stereo
[Audio1]
Enabled: True
PushToTalk: False
Device: Microphone (Turtle Beach USB Headset)
Codec: PCM
Format: PCM 48000 Hz, 16 bit, Stereo
[ScreenShot]
Clipping:
ClipMargin: 0,0,0,0
ClipSize: 0,0
Scaling: Percent 100% 0x0
HighSpeedLimit: 0
RepeatInterval: 1000
Format: PNG
JpegQuality: 97
Option:
[Advanced]
Option:
ThreadCount: 4
LimitedFPS: False
FPSLimit: 60
DelayHook: False
DelayHookTime: 5
======================================================================
[Profile]
Name: Rocksmith 2014
Path: D:\SteamLibrary\SteamApps\common\Rocksmith2014\Rocksmith2014.exe
[Advanced]
Option:
ThreadCount: 4
LimitedFPS: False
FPSLimit: 60
DelayHook: False
DelayHookTime: 5
[LastUsingInformation]
DateTime: 2015/02/18 11:59:20
DeviceType: DX9
View0.Type=DX9
View0.DevType=D3DDEVTYPE_HAL
View0.BhFlags=D3DCREATE_MULTITHREADED D3DCREATE_PUREDEVICE D3DCREATE_HARDWARE_VERTEXPROCESSING
View0.Format=D3DFMT_X8R8G8B8
View0.Size=1920x1080
View0.HWND=0x000F03BC
View0.WindowTitle=Rocksmith 2014
View0.ClassName=Rocksmith 2014
======================================================================
VerifyHash: 8cb1313ccb11f8b7152e379c1b33112b1739a277
Error log.
Quote========== 2015/02/16 20:45:08 ==========
PID:2396 C:\Program Files (x86)\ExKode\Dxtory2.0\Dxtory.exe
PID:2396 TID:5768 TickCount: 728930 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5872 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:5872 TID:5488 TickCount: 728930 Fail AVITransClient::Init m_Client ID_Create
PID:5872 TID:5488 TickCount: 728930 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:6000 TickCount: 785964 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5872 TID:4432 TickCount: 785964 Fail AVITransClient::Init m_Client ID_Create
PID:5872 TID:4432 TickCount: 785964 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:664 TickCount: 837569 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5872 TID:5640 TickCount: 837569 Fail AVITransClient::Init m_Client ID_Create
PID:5872 TID:5640 TickCount: 837569 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:5628 TickCount: 1278864 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5872 TID:4336 TickCount: 1278864 Fail AVITransClient::Init m_Client ID_Create
PID:5872 TID:4336 TickCount: 1278864 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:3672 TickCount: 1294558 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5872 TID:5188 TickCount: 1294558 Fail AVITransClient::Init m_Client ID_Create
PID:5872 TID:5188 TickCount: 1294558 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:6020 TickCount: 2356317 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:2704 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:2704 TID:3732 TickCount: 2356317 Fail AVITransClient::Init m_Client ID_Create
PID:2704 TID:3732 TickCount: 2356317 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:6424 TickCount: 2448108 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:2704 TID:6216 TickCount: 2448108 Fail AVITransClient::Init m_Client ID_Create
PID:2704 TID:6216 TickCount: 2448108 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:2396 TID:4272 TickCount: 2483925 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:2704 TID:4632 TickCount: 2483925 Fail AVITransClient::Init m_Client ID_Create
PID:2704 TID:4632 TickCount: 2483925 Fail MediaWriterAVI_v2::_Init m_Client.Init
========== 2015/02/16 21:39:02 ==========
PID:4168 C:\Program Files (x86)\ExKode\Dxtory2.0\Dxtory.exe
PID:4168 TID:4460 TickCount: 3963033 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5944 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:5944 TID:5468 TickCount: 3963033 Fail AVITransClient::Init m_Client ID_Create
PID:5944 TID:5468 TickCount: 3963033 Fail MediaWriterAVI_v2::_Init m_Client.Init
========== 2015/02/17 11:42:04 ==========
PID:7604 C:\Program Files (x86)\ExKode\Dxtory2.0\Dxtory.exe
PID:7604 TID:8816 TickCount:54545421 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:7900 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:7900 TID:7676 TickCount:54545421 Fail AVITransClient::Init m_Client ID_Create
PID:7900 TID:7676 TickCount:54545421 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:7604 TID:8628 TickCount:54550632 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:7900 TID:8516 TickCount:54550632 Fail AVITransClient::Init m_Client ID_Create
PID:7900 TID:8516 TickCount:54550632 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:7604 TID:4384 TickCount:54576247 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:7900 TID:6444 TickCount:54576247 Fail AVITransClient::Init m_Client ID_Create
PID:7900 TID:6444 TickCount:54576247 Fail MediaWriterAVI_v2::_Init m_Client.Init
========== 2015/02/17 11:45:42 ==========
PID:5956 C:\Program Files (x86)\ExKode\Dxtory2.0\Dxtory.exe
PID:5956 TID:3092 TickCount: 119886 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5796 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:5796 TID:2384 TickCount: 119886 Fail AVITransClient::Init m_Client ID_Create
PID:5796 TID:2384 TickCount: 119886 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:5956 TID:4148 TickCount: 130884 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5796 TID:4236 TickCount: 130884 Fail AVITransClient::Init m_Client ID_Create
PID:5796 TID:4236 TickCount: 130884 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:5956 TID:2560 TickCount: 164128 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5796 TID:996 TickCount: 164128 Fail AVITransClient::Init m_Client ID_Create
PID:5796 TID:996 TickCount: 164128 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:5956 TID:5412 TickCount: 204283 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:4624 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:4624 TID:5676 TickCount: 204283 Fail AVITransClient::Init m_Client ID_Create
PID:4624 TID:5676 TickCount: 204283 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:5956 TID:5376 TickCount: 257152 Stream2 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:5424 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:5424 TID:5836 TickCount: 257152 Fail AVITransClient::Init m_Client ID_Create
PID:5424 TID:5836 TickCount: 257152 Fail MediaWriterAVI_v2::_Init m_Client.Init
========== 2015/02/17 11:53:47 ==========
PID:1708 C:\Program Files (x86)\ExKode\Dxtory2.0\Dxtory.exe
PID:1708 TID:2784 TickCount: 605705 Stream1 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:6124 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:6124 TID:388 TickCount: 605705 Fail AVITransClient::Init m_Client ID_Create
PID:6124 TID:388 TickCount: 605705 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:1708 TID:4192 TickCount: 718478 Stream1 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:6124 TID:1340 TickCount: 718478 Fail AVITransClient::Init m_Client ID_Create
PID:6124 TID:1340 TickCount: 718478 Fail MediaWriterAVI_v2::_Init m_Client.Init
========== 2015/02/18 11:47:23 ==========
PID:5880 C:\Program Files (x86)\ExKode\Dxtory2.0\Dxtory.exe
PID:5880 TID:5172 TickCount: 3424237 Stream1 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:2192 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:2192 TID:2508 TickCount: 3424237 Fail AVITransClient::Init m_Client ID_Create
PID:2192 TID:2508 TickCount: 3424237 Fail MediaWriterAVI_v2::_Init m_Client.Init
PID:5880 TID:3172 TickCount: 4142840 Stream0 Fail AudioCaptureWAS::InitObject m_AudioClient->Initialize hr=AUDCLNT_E_DEVICE_IN_USE(8889000a)
PID:8108 D:\SteamLibrary\steamapps\common\Rocksmith2014\Rocksmith2014.exe
PID:8108 TID:7688 TickCount: 4142840 Fail AVITransClient::Init m_Client ID_Create
PID:8108 TID:7688 TickCount: 4142840 Fail MediaWriterAVI_v2::_Init m_Client.Init
I've tried various "fixes" that I've seen but it hasn't worked.
Help please.
I think it's the cause that an audio device is used exclusively.
The game does use a 'Realtone' USB cable so the software can interface with my guitar, it wasn't showing up when I tried to assign it as part of the recording profile until I deactivated my mic and set the cable as my default recording device in my Control Panel sound settings.
So that sorted the INIT error in terms of being able to get a video file except it's not recording the audio to acompany it. I've done a little digging on forums and it would appear that on loading Rocksmith, the game accesses the speakers AND cable in the way you say and Ubisoft added an option in the games audio options to turn the 'audio exclusivity' off because of a similar issue with other recording software.
While some people have said they didn't need to when using DXTory, I'll give it a go when I have a chance.
Any other suggestions in the event it doesn't work? I'll post my findings here in any case.
Thanks for your help.