chore: Update tts_per_sentence function to use correct output file path

app.py

@@ -235,7 +235,7 @@ def tts_per_sentence(sentences, output_folder, silence_duration=1000):
 
     for index, sentence in enumerate(sentences):
         output_file = f'{output_folder}/voiceover_{index}.wav'
-        text_to_speech_using_speecht5(sentence, audio_output_folder)
+        text_to_speech_using_speecht5(sentence, output_file)
         audio = AudioSegment.from_wav(output_file)
         silence = AudioSegment.silent(duration=silence_duration)
         audio_with_silence = audio + silence
@@ -523,7 +523,7 @@ def generate_video():
             sentences = nltk.sent_tokenize(selftext)
             
             # Generate audio for each sentence and get durations
-            audio_files, audio_durations = tts_per_sentence(sentences, 'audio')
+            audio_files, audio_durations = tts_per_sentence(sentences, audio_output_folder)
 
             # Create and save the video
             video_filename = "reddit_post_video_cv2.mp4"