diff --git a/doubao/config.py b/doubao/config.py
index 79cad2e..3bb6cd1 100644
--- a/doubao/config.py
+++ b/doubao/config.py
@@ -56,5 +56,5 @@ output_audio_config = {
     "format": "pcm",
     "channels": 1,
     "sample_rate": 24000,
-    "bit_size": pyaudio.paFloat32,
+    "bit_size": pyaudio.paInt16,
 }