From 8a085c0af99d194c63480cb3c90e03cc32bb8c0e Mon Sep 17 00:00:00 2001
From: Christoph Oelckers <coelckers@users.noreply.github.com>
Date: Sat, 22 Feb 2020 17:23:23 +0100
Subject: [PATCH] - fixed undefined behavior with unpositioned but attenuated
 sounds.

---
 source/common/sound/s_sound.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/source/common/sound/s_sound.cpp b/source/common/sound/s_sound.cpp
index cfef15607..d8274299e 100644
--- a/source/common/sound/s_sound.cpp
+++ b/source/common/sound/s_sound.cpp
@@ -584,7 +584,7 @@ FSoundChan *SoundEngine::StartSound(int type, const void *source,
 		GSnd->MarkStartTime(chan);
 		chanflags |= CHANF_EVICTED;
 	}
-	if (attenuation > 0)
+	if (attenuation > 0 && type != SOURCE_None)
 	{
 		chanflags |= CHANF_IS3D | CHANF_JUSTSTARTED;
 	}