diff --git a/src/lib/components/session/ParticipantView.svelte b/src/lib/components/session/ParticipantView.svelte
index 8c64008..a586a36 100644
--- a/src/lib/components/session/ParticipantView.svelte
+++ b/src/lib/components/session/ParticipantView.svelte
@@ -215,7 +215,8 @@
 
 				await pInitFFmpeg;
 				console.log('Audio recorded:', audio);
-				const wav = float32ArrayToWav(audio);
+				// remove last 8000 samples (0.5s)
+				const wav = float32ArrayToWav(audio.slice(0, -8000));
 				console.log('Audio converted to wav:', wav);
 				const mp3 = await wav2mp3(wav);
 				console.log('Audio converted to mp3:', mp3);
@@ -376,7 +377,8 @@
 
 				await pInitFFmpeg;
 				console.log('Audio recorded:', audio);
-				const wav = float32ArrayToWav(audio);
+				// remove last 8000 samples (0.5s)
+				const wav = float32ArrayToWav(audio.slice(0, -8000));
 				console.log('Audio converted to wav:', wav);
 				const mp3 = await wav2mp3(wav);
 				console.log('Audio converted to mp3:', mp3);
diff --git a/src/lib/stt/gemini.ts b/src/lib/stt/gemini.ts
index a07a33e..1659e45 100644
--- a/src/lib/stt/gemini.ts
+++ b/src/lib/stt/gemini.ts
@@ -17,5 +17,5 @@ export async function transcribe(data: Buffer): Promise<string> {
 		throw new Error('Failed to transcribe audio');
 	}
 
-	return output.transcription;
+	return output.transcription.replace(/[嗶.…]+$/g, '');
 }