changed formatting of file upload and text input

app.py

@@ -16,16 +16,14 @@ st.title('Voice Cloning')
 
 # Upload audio file
 uploaded_file = st.file_uploader('Add an audio file of the voice you want to clone...', type=['wav'])
+st.audio(uploaded_file, format='audio/wav')
 
-if uploaded_file:
-  st.audio(uploaded_file, format='audio/wav')
+# Input text 
+text_input = st.text_input('Enter the text to synthesize:')
 
-  # Input text 
-  text_input = st.text_input('Enter the text to synthesize:')
+if uploaded_file is not None and text_input is not "":
+  if st.button('Synthesize'):
+    output_audio = tts.tts_to_file(text=text_input, speaker_wav=uploaded_file, language='en')
 
-  if text_input:
-    if st.button('Synthesize'):
-      output_audio = tts.tts_to_file(text=text_input, speaker_wav=uploaded_file, language='en')
-  
-      st.audio(output_audio, format='audio/wav')
+    st.audio(output_audio, format='audio/wav')