add info about default player source filters

docs/api/sources.md

@@ -30,13 +30,21 @@ Entity sources are attached to the entities.
 :::
 
 ### Player source
-Player sources are attached to the players.
+Player source is attached to the player, audio will be played at a certain distance around the player.
 
 ::: code-group
 <<< @/snippets/api/sources/player.java [java]
 <<< @/snippets/api/sources/player.kt{kotlin} [kotlin]
 :::
 
+By default, the player attached to the source can't hear the audio.
+If you want to override this behaviour, you need to remove the first source filter:
+::: code-group
+<<< @/snippets/api/sources/player-remove-filter.java [java]
+<<< @/snippets/api/sources/player-remove-filter.kt{kotlin} [kotlin]
+:::
+You can also remove all filters, but beware that vanish support won't work for this source.
+
 ### Direct source
 Direct sources are attached to a specific player and can only be heard by that player.
 

snippets/api/sources/player-remove-filter.java

@@ -0,0 +1,6 @@
+ServerPlayerSource source = /* */;
+
+source.getFilters()
+        .stream()
+        .findFirst()
+        .ifPresent(source::removeFilter);

snippets/api/sources/player-remove-filter.kt

@@ -0,0 +1,3 @@
+val source: ServerPlayerSource = /* */
+
+source.removeFilter(source.filters.first())