Update app.py

app.py

@@ -1,5 +1,4 @@
 import tempfile
-
 from pathlib import Path
 
 import gradio as gr
@@ -26,7 +25,7 @@ def generate_audio(text, audio_prompt):
     if audio_prompt is not None:
         sr, audio = audio_prompt
 
-        if audio is not None and audio.size > 0:
+        if audio is not None and np.size(audio) > 0:
             with tempfile.NamedTemporaryFile(mode="wb", suffix=".wav", delete=False) as f:
                 sf.write(f.name, audio, sr)
                 prompt_path = f.name
@@ -34,10 +33,9 @@ def generate_audio(text, audio_prompt):
     audio_out = model.generate(
         text=text,
         audio_prompt=prompt_path,
-        max_tokens=None,
         cfg_scale=3.0,
-        temperature=1.8,
-        top_p=0.95,
+        temperature=1.2,
+        top_p=0.9,
     )
 
     if prompt_path is not None and Path(prompt_path).exists():