diff --git a/src/types/global.d.ts b/src/types/global.d.ts
index 664b993..4571e5b 100644
--- a/src/types/global.d.ts
+++ b/src/types/global.d.ts
@@ -52,6 +52,16 @@ declare global {
      * @param name
      */
     function StopTimer(name: string): void {}
+    /**
+     * Stops every playing instance of an audio file started with PlayAudio.
+     *
+     * @param filename The name of the audio file to stop. Relative to the sounds directory
+     */
+    function StopAudio(filename: string): void {}
+    /**
+     * Stops all audio files started with PlayAudio.
+     */
+    function StopAllAudio(): void {}
     /**
      * Determine if the rule has been violated, but only after a delay. Pass in a callback method,
      *             where the rule evaluation takes place. This method is evaluated often (many times a second),