diff --git a/src/audio/soundplayer.c b/src/audio/soundplayer.c
index e5cc359..d7cab12 100644
--- a/src/audio/soundplayer.c
+++ b/src/audio/soundplayer.c
@@ -5,6 +5,8 @@
 #include "util/time.h"
 #include "math/mathf.h"
 #include "clips.h"
+#include "../physics/collision_scene.h"
+#include "../math/transform.h"
 
 struct SoundArray* gSoundClipArray;
 ALSndPlayer gSoundPlayer;
@@ -50,13 +52,48 @@ void soundPlayerDetermine3DSound(struct Vector3* at, struct Vector3* velocity, f
 
     struct SoundListener* nearestListener = &gSoundListeners[0];
     float distance = vector3DistSqrd(at, &gSoundListeners[0].worldPos);
+    int through_0_from_1 = 0;
+    int through_1_from_0 = 0;
 
-    for (int i = 1; i < MAX_SOUND_LISTENERS; ++i) {
+
+    int portalsPresent = 0;
+    struct Transform portal0transform;
+    struct Transform portal1transform;
+    if (gCollisionScene.portalTransforms[0] != NULL && gCollisionScene.portalTransforms[1] != NULL){
+        portalsPresent = 1;
+        portal0transform = *gCollisionScene.portalTransforms[0];
+        portal1transform = *gCollisionScene.portalTransforms[1];
+    }
+
+    for (int i = 0; i < MAX_SOUND_LISTENERS; ++i) {
         float check = vector3DistSqrd(at, &gSoundListeners[i].worldPos);
-
         if (check < distance) {
             distance = check;
             nearestListener = &gSoundListeners[i];
+            through_0_from_1 = 0;
+            through_1_from_0 = 0;
+        }
+
+        if (portalsPresent){
+            float dist1,dist2;
+            // check dist from obj to 0 portal + from 1 portal to listener
+            dist1 =  vector3DistSqrd(at, &portal0transform.position);
+            dist2 =  vector3DistSqrd(&portal1transform.position, &gSoundListeners[i].worldPos);
+            if ((dist1+dist2) < distance){
+                distance = (dist1+dist2);
+                nearestListener = &gSoundListeners[i];
+                through_0_from_1 = 1;
+                through_1_from_0 = 0;
+            }
+            // check dist from obj to 1 portal + from 0 portal to listener
+            dist1 =  vector3DistSqrd(at, &portal1transform.position);
+            dist2 =  vector3DistSqrd(&portal0transform.position, &gSoundListeners[i].worldPos);
+            if ((dist1+dist2) < distance){
+                distance = (dist1+dist2);
+                nearestListener = &gSoundListeners[i];
+                through_0_from_1 = 0;
+                through_1_from_0 = 1;
+            }
         }
     }
 
@@ -75,8 +112,16 @@ void soundPlayerDetermine3DSound(struct Vector3* at, struct Vector3* velocity, f
     }
 
     struct Vector3 offset;
-    vector3Sub(at, &nearestListener->worldPos, &offset);
-
+    if (through_0_from_1){
+        vector3Sub(&portal1transform.position, &nearestListener->worldPos, &offset);
+    }
+    else if(through_1_from_0){
+        vector3Sub(&portal0transform.position, &nearestListener->worldPos, &offset);
+    }
+    else{
+        vector3Sub(at, &nearestListener->worldPos, &offset);
+    }
+    
     struct Vector3 relativeVelocity;
     vector3Sub(velocity, &nearestListener->velocity, &relativeVelocity);