Widen the plain stereo width

Now full right and left is +-60 degrees instead of +-30. This should help
create a smoother panning for a sound moving in front for plain stereo output
(surround sound and HRTF are not changed).

Multi-channel sources are also not affected by this change. The stereo channel
defaults of +-pi/6 (30 degrees) still correspond to full left/right panning.
This is an unfortuante discrepancy, but is necessary for AL_EXT_STEREO_ANGLES
to work.

1 files changed, 2 insertions, 2 deletions

diff --git a/Alc/ALu.c b/Alc/ALu.c
index d033c0c4..0711d611 100644
--- a/Alc/ALu.c
+++ b/Alc/ALu.c
@@ -652,7 +652,7 @@ static void CalcPanningAndFilters(ALvoice *voice, const ALfloat Azi, const ALflo
              * moved to +/-90 degrees for direct right and left speaker
              * responses.
              */
-            CalcAngleCoeffs((Device->Render_Mode==StereoPair) ? ScaleAzimuthFront(Azi, 3.0f) : Azi,
+            CalcAngleCoeffs((Device->Render_Mode==StereoPair) ? ScaleAzimuthFront(Azi, 1.5f) : Azi,
                             Elev, Spread, coeffs);
 
             /* NOTE: W needs to be scaled by sqrt(2) due to FuMa normalization. */
@@ -897,7 +897,7 @@ static void CalcPanningAndFilters(ALvoice *voice, const ALfloat Azi, const ALflo
             /* Calculate the directional coefficients once, which apply to all
              * input channels.
              */
-            CalcAngleCoeffs((Device->Render_Mode==StereoPair) ? ScaleAzimuthFront(Azi, 3.0f) : Azi,
+            CalcAngleCoeffs((Device->Render_Mode==StereoPair) ? ScaleAzimuthFront(Azi, 1.5f) : Azi,
                             Elev, Spread, coeffs);
 
             for(c = 0;c < num_channels;c++)