Removed placeholders

src/components/Exercises/Speaking.tsx

@@ -154,6 +154,7 @@ export default function Speaking({id, title, text, type, prompts, onNext, onBack
 											onClick={() => {
 												setRecordingDuration(0);
 												clearBlobUrl();
+												setMediaBlob(undefined);
 											}}
 										/>
 
@@ -163,6 +164,7 @@ export default function Speaking({id, title, text, type, prompts, onNext, onBack
 												setRecordingDuration(0);
 												startRecording();
 												setIsRecording(true);
+												setMediaBlob(undefined);
 											}}
 											className="h-5 w-5 text-mti-gray-cool cursor-pointer"
 										/>

src/exams/Listening.tsx

@@ -56,7 +56,7 @@ export default function Listening({exam, showSolutions = false, onFinish}: Props
 			</div>
 			<div className="rounded-xl flex flex-col gap-4 items-center w-full h-fit">
 				<AudioPlayer
-					src="https://assets.mixkit.co/active_storage/sfx/213/213-preview.mp3"
+					src={exam.audio.source}
 					color="listening"
 					onEnd={() => setTimesListened((prev) => prev + 1)}
 					disabled={timesListened === exam.audio.repeatableTimes}