fix last sentece, use file for ios

app.py

@@ -497,10 +497,13 @@ def generate_speech(history):
     # final_audio.update(value=combined_file_name, visible=True)
     # yield (combined_file_name, history
 
+    time.sleep(0.6)
     wav_bytestream = wave_header_chunk() + wav_bytestream
-    time.sleep(0.7)
+    outfile = "combined.wav"
+    with open(outfile, "wb") as f:
+        f.write(wav_bytestream)
     yield (gr.Audio.update(value=None, autoplay=False), history)
-    yield (gr.Audio.update(value=wav_bytestream, autoplay=False), history)
+    yield (gr.Audio.update(value=outfile, autoplay=False), history)
 
 
 with gr.Blocks(title=title) as demo: