SCUMM: Fix error in player_appleII when both voices are triggered at the same time

1 files changed, 7 insertions, 5 deletions

diff --git a/engines/scumm/player_appleII.cpp b/engines/scumm/player_appleII.cpp
index c5f60cd700..b83bb22871 100644
--- a/engines/scumm/player_appleII.cpp
+++ b/engines/scumm/player_appleII.cpp
@@ -272,19 +272,21 @@ void Player_AppleII::_soundFunc4(byte param0, byte param1, byte param2) { // D1A
 
 	while (true) {
 		--updateRemain1;
-		if (updateRemain1 == 0) {
-			updateRemain1 = updateInterval1;
-			speakerShiftReg ^= bitmask1;
-		}
-
 		--updateRemain2;
+
 		if (updateRemain2 == 0) {
 			updateRemain2 = updateInterval2;
+			// use only first voice's data (bitmask1) if both voices are triggered 
 			if (updateRemain1 != 0) {
 				speakerShiftReg ^= bitmask2;		
 			}
 		}
 
+		if (updateRemain1 == 0) {
+			updateRemain1 = updateInterval1;
+			speakerShiftReg ^= bitmask1;
+		}
+
 		if (speakerShiftReg & 0x1)
 			speakerToggle();
 		speakerShiftReg >>= 1;