@@ -487,6 +487,7 @@ static ChannelElement *get_che(AACContext *ac, int type, int elem_id)

             return NULL;

         ac->oc[1].m4ac.chan_config = 2;

+        ac->oc[1].m4ac.ps = 0;

     }

     // And vice-versa

     if (!ac->tags_mapped && type == TYPE_SCE && ac->oc[1].m4ac.chan_config == 2) {

@@ -504,6 +505,8 @@ static ChannelElement *get_che(AACContext *ac, int type, int elem_id)

             return NULL;

         ac->oc[1].m4ac.chan_config = 1;

+        if (ac->oc[1].m4ac.sbr)

+            ac->oc[1].m4ac.ps = -1;

     }

     // For indexed channel configurations map the channels solely based on position.

     switch (ac->oc[1].m4ac.chan_config) {