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Sound: stereo channels are swapped
http://sldev.free.fr/forum/viewtopic.php?f=4&t=1862
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Author:  deepspace [ 2018-07-26 09:29:21 ]
Post subject:  Sound: stereo channels are swapped

Left and right sound channels are swapped. It distorts spatial awareness. Both the windows and linux version are affected.

Test script; drop into a prim together with a sound. Move the prim to the far left of the avi.. and then to to the right:
Code:
default
{
    state_entry()
    {
        llLoopSound(llGetInventoryName(INVENTORY_SOUND, 0), 1);
    }
}


Make sure your speakers are setup correctly to begin with (with a stereo test)

Help->About...:
Code:
Cool VL Viewer v1.26.22.11, 64 bits, Jul  7 2018 10:14:52
RestrainedLove viewer v2.09.23.20
Release Notes

You are at 2618542.0, 2592351.0, 21.9  in Sandbox Plaza located at
plaza11.osgrid.org (142.44.137.38:9303)
OpenSim 0.9.1.0 Dev        24df1086fa: 2018-05-04 23:00:34 +0100 (Unix/Mono)

CPU: Intel(R) Core(TM) i5-4460  CPU @ 3.20GHz (3200 MHz)
Memory: 16188MB
OS version: Microsoft Windows 8 64-bit  (Build 9200) compatibility mode. Real version: 10.0 (Build 10586)
Memory manager: OS native
Graphics card vendor: NVIDIA Corporation
Graphics card: GeForce GTX 750 Ti/PCIe/SSE2
Windows graphics driver version: 23.21.0013.8813
OpenGL version: 4.6.0 NVIDIA 388.13
Detected VRAM: 2048MB
J2C decoder: OpenJPEG: 1.4.0.635d
Audio driver: FMOD Studio v1.10.06
Networking backend: libcurl/7.47.0 OpenSSL/1.0.2l zlib/1.2.8
Embedded browser: CEF3 plugin v3.3325.1750.gaabe4c4
Packets lost: 0/3303 (0.0%)

Built with: MSVC v1800

Compile flags used for this build:
/O2 /Oi /MD /MP /DNDEBUG /D_SECURE_SCL=0 /D_HAS_ITERATOR_DEBUGGING=0 /DWIN32 /D_WINDOWS /W3 /GR /EHsc /Oy- /GS /fp:fast /TP /W2 /Zc:forScope /Zc:wchar_t- /c /nologo /DLL_WINDOWS=1 /DUNICODE /D_UNICODE /DWINVER=0x0600 /D_WIN32_WINNT=0x0600 /DXML_STATIC /DBOOST_ALL_NO_LIB /DLL_LUA=1 /DLL_FMODSTUDIO=1 /DAPR_DECLARE_STATIC /DAPU_DECLARE_STATIC /DCURL_STATICLIB=1 /DLIB_NDOF=1


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Author:  Henri Beauchamp [ 2018-07-26 12:12:36 ]
Post subject:  Re: Sound: stereo channels are swapped

This bug indeed affects the FMOD Studio audio back-end (Alchemy and Singularity are also affected), not the FMOD Ex neither the OpenAL audio back-ends; it is due to a wrong flag (FMOD_INIT_3D_RIGHTHANDED) being passed to FMOD Studio at initialization time.

Fixed for next release.

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