diff --git a/chain_service/services/audio_converter.py b/chain_service/services/audio_converter.py
index 3fc371c..fa8358c 100644
--- a/chain_service/services/audio_converter.py
+++ b/chain_service/services/audio_converter.py
@@ -15,7 +15,7 @@ class AudioConverterService:
 
         process = (
             ffmpeg.input("pipe:")
-            .output(filename, codec="libopus", loglevel="quiet")
+            .output(filename, codec="libopus", audio_bitrate="32k", loglevel="quiet")
             .overwrite_output()
             .run_async(pipe_stdin=True)
         )