diff --git a/synthesizer.py b/synthesizer.py
index e1da90d..7838b49 100644
--- a/synthesizer.py
+++ b/synthesizer.py
@@ -56,4 +56,4 @@ class Synthesizer:
 
     out = io.BytesIO()
     audio.save_wav(wav, out)
-    return out, alignment
+    return out.getvalue(), alignment