From 1b3009d84926758f519c12f74d06dee532c3664f Mon Sep 17 00:00:00 2001
From: goyuken <goyuken@4bbf4f03-6f44-549e-7e59-35d4b0962838>
Date: Wed, 5 Mar 2014 05:06:34 +0000
Subject: [PATCH] also fix stereo audio in dual GB (But in this case we just
 downmix to mono since we have two gameboys one out each speaker)

---
 .../Consoles/Nintendo/Gameboy/GambatteLink.cs                | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs
index 7ddab60a43..93cc5e047e 100644
--- a/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs
+++ b/BizHawk.Emulation.Cores/Consoles/Nintendo/Gameboy/GambatteLink.cs
@@ -385,14 +385,13 @@ namespace BizHawk.Emulation.Cores.Nintendo.Gameboy
 				{
 					for (uint i = 0; i < SampPerFrame * 2; i += 2)
 					{
-						// gameboy audio output is mono, so ignore one sample
-						int s = sl[i];
+						int s = (sl[i] + sl[i + 1]) / 2;
 						if (s != LatchL)
 						{
 							blip_left.AddDelta(i, s - LatchL);
 							LatchL = s;
 						}
-						s = sr[i];
+						s = (sr[i] + sr[i + 1]) / 2;
 						if (s != LatchR)
 						{
 							blip_right.AddDelta(i, s - LatchR);