Thank-you. Others periodically have issues like this, and are often fixed by:

1. Re-downloading the mod
2. Changing locale & keyboard settings to English / US (look in other discussion threads for this mod).

I've noticed that you're using French for the base language, so #2 may be the case, and somehow your computer is interpreting the sound engine file incorrectly because of your regional settings.

At this time I won't be adding support for other languages, it's a big project to undertake.

If I understand right, the game when not founding correct French files, load english files in place, but crashes for audio. Strange because all the audio files are in english in (my) HWRM...
This game drives me crazy sometimes, keep up your job buddy it's really nice. And thanks for your help btw ;)

@By Charles-Eduard try now, v1.1.4a may fix the issue.

Now I get "Acces violation"

Here is the log if it can help you :

Wed Jul 22 18:53:01 2015
Version 1.28, Build Number 10, Changelist Number 1057918
Loaded Archive: 'Homeworld2.big'
Loaded Archive: 'UpdateHomeworld2.big'
Loaded Archive: 'HW1Ships.big'
Loaded Archive: 'UpdateHW1Ships.big'
Loaded Archive: 'HW2Ships.big'
Loaded Archive: 'UpdateHW2Ships.big'
Loaded Archive: 'HWBackgrounds.big'
Loaded Archive: 'UpdateHWBackgrounds.big'
UTIL -- filepath failure, path doesn't exists 'C:\Program Files (x86)\Steam\steamapps\common\Homeworld\HomeworldRM\data\locale\French'
Loaded Archive: 'French.big'
Loaded Archive: 'UpdateFrench.big'
Loaded Archive: 'Compatibility.big'
Loaded Archive: '76561197996905651\416844570\cataclysm.big'
Failed to Load Archive '..\..\DATAWORKSHOPMODS\76561197996905651\416844570\French.big'
Uing ..profiles\ for profiles folder
GAME -- Using player profile Ozu
Changing from a 32 bit colour depth in winNT (6.1 build 7601), Service Pack 1
Display: (0, 0, 1920, 1080) - (0, 0)
Display: (0, 0, 1920, 1080) - (0, 0)
Switching to a 1920x1080 32bit mode
Display: (0, 0, 1920, 1080) - (0, 0)
GL Info: 3.3 - 3.3.0 NVIDIA 353.30
GL Vendor: NVIDIA Corporation
GL Renderer: Quadro K2000M/PCIe/SSE2
GL Part ID: 0
Loaded Archive: 'EnglishSpeech.big'
Loaded Archive: 'UpdateEnglishSpeech.big'
Loaded Archive: 'Music.big'
Loaded Archive: 'UpdateMusic.big'
SOUND -- created destination [ fdaudio ], handle [ 4 ] with [ 48 ] channels created
SOUND -- created destination [ fda streamer ], handle [ 5 ] with [ 8 ] channels created
SOUND -- created destination [ dxa streamer ], handle [ 0 ] with [ 8 ] channels created
SOUND -- created destination [ dxaudio ], handle [ 1 ] with [ 48 ] channels created
Build name:
Built by : builduser
Data path : C:\Program Files (x86)\Steam\steamapps\common\Homeworld\HomeworldRM\data
LUA 'DATA:\UI\NewUI\Styles\HWRMStyles.lua' -- parameter: <statement> expected;
last token read: `ð' at line 1 in string ""
Unable to retrieve UI (animated) texture (Data:UI\NewUI\Background\main_bg.tga)
LUA 'DATA:\UI\NewUI\Main\NewMainMenu.lua' -- parameter: <statement> expected;
last token read: `ð' at line 1 in string ""
Attribute RM_FETextBlueBright not found in stylesheet!
No mapping for font 'Blender' - using 'default'
Style FETextInputStyle not found in style sheet
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Style FETextInputStyle not found in style sheet
Attribute RM_FETextBlueBright not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Style FEChatTextInputStyle not found in style sheet
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Style FETextInputStyle not found in style sheet
Style FETextInputStyle not found in style sheet
Style FETextInputStyle not found in style sheet
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Style FEChatTextInputStyle not found in style sheet
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute RM_FETextBlueBright not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Style FEChatTextInputStyle not found in style sheet
Attribute RM_FETextBlueBright not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Style FEChatTextInputStyle not found in style sheet
Attribute FEColorBackground1 not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
Attribute FEColorDialog not found in stylesheet!
Attribute FEColorDialog not found in stylesheet!
Style FETextInputStyle not found in style sheet
Attribute RM_FETextBlueBright not found in stylesheet!
Attribute RM_FETextBlueBright not found in stylesheet!
Attribute RM_FETextBlueBright not found in stylesheet!
Attribute FEColorOutline not found in stylesheet!
FESliderLabelStyle could not be found in the stylesheet
FESliderLabelStyle could not be found in the stylesheet
Restoring video mode
Display: (0, 0, 1920, 1080) - (0, 0)
Display: (0, 0, 100, 100) - (8, 30)
Display: (0, 0, 100, 100) - (8, 30)

Thank-you. It looks like the same issue in a different place. I'll dig into the root of the issue...

Good luck ;) Can't help you but I'll support you with my mind :D