Update app.py

app.py

@@ -59,10 +59,9 @@ def infer(text, sdp_ratio, noise_scale, noise_scale_w, length_scale, sid, model_
         del x_tst, tones, lang_ids, bert, x_tst_lengths, speakers
         sf.write("tmp.wav", audio, 44100)
         return audio
-tz = pytz.timezone('Asia/Shanghai')
 
 def convert_wav_to_mp3(wav_file):
-    global tz
+    tz = pytz.timezone('Asia/Shanghai')
     now = datetime.now(tz).strftime('%m%d%H%M%S')
     os.makedirs('out', exist_ok=True)  
     output_path_mp3 = os.path.join('out', f"{now}.mp3")