Fix variables

app.py

@@ -113,17 +113,17 @@ def text2audio(
     output_wave = tango.generate(prompt, steps, guidance, output_number)
 
     output_filename_1 = "tmp1_.wav"
-    wavio.write(output_filename, output_wave[0], rate = 16000, sampwidth = 2)
+    wavio.write(output_filename_1, output_wave[0], rate = 16000, sampwidth = 2)
 
     if (2 <= output_number):
         output_filename_2 = "tmp2_.wav"
-        wavio.write(output_filename, output_wave[1], rate = 16000, sampwidth = 2)
+        wavio.write(output_filename_2, output_wave[1], rate = 16000, sampwidth = 2)
     else:
         output_filename_2 = None
 
     if (output_number == 3):
         output_filename_3 = "tmp3_.wav"
-        wavio.write(output_filename, output_wave[2], rate = 16000, sampwidth = 2)
+        wavio.write(output_filename_3, output_wave[2], rate = 16000, sampwidth = 2)
     else:
         output_filename_3 = None