Fix setting Ambi formats for loopback devices

1 files changed, 1 insertions, 1 deletions

diff --git a/Alc/ALc.c b/Alc/ALc.c
index f830a602..8d241802 100644
--- a/Alc/ALc.c
+++ b/Alc/ALc.c
@@ -1904,7 +1904,7 @@ static ALCenum UpdateDeviceParams(ALCdevice *device, const ALCint *attrList)
 
         if(schans == ALC_BFORMAT3D_SOFT)
         {
-            device->FmtChans = DevFmtAmbi1 + aorder;
+            device->FmtChans = DevFmtAmbi1 + (aorder-1);
             device->AmbiLayout = alayout;
             device->AmbiScale = ascale;
         }