fix error

app.py

@@ -1,3 +1,4 @@
+import io
 import os
 
 import gradio as gr
@@ -15,19 +16,11 @@ speaker_ids = model.hps.data.spk2id
 
 
 def inference(
-    text: str, speed: float, speaker: str, progress=gr.Progress(track_tqdm=True)
+        text: str, speed: float, speaker: str, progress=gr.Progress(track_tqdm=True)
 ):
-    # Ensure text is a string
-    if not isinstance(text, str):
-        raise gr.Error(f"Expected string or bytes, got {type(text)}: {text}")
-
-    output_path = "audio.wav"
-
-    # Debugging: Print the input text and other parameters
-    print(f"Input text: {text}, Speed: {speed}, Speaker: {speaker}")
-
-    model.tts_to_file(text, speaker_ids[speaker], output_path, speed=speed)
-    return output_path
+    bio = io.BytesIO()
+    model.tts_to_file(text, speaker_ids[speaker], bio, speed=speed)
+    return bio
 
 
 if __name__ == "__main__":