Update app.py

app.py

@@ -4,6 +4,7 @@ from vietTTS import nat_normalize_text
 import numpy as np
 import gradio as gr
 import os
+import librosa
 
 
 def text_to_speech(text):
@@ -23,9 +24,12 @@ def text_to_speech(text):
 
 
 def speak(text):
+    speed = duration_slider.value
     y = text_to_speech(text)
+    y = librosa.effects.time_stretch(y, speed)
     return 16_000, y
 
+
 title = "vietTTS"
 description = "A vietnamese text-to-speech demo."
 duration_slider = gr.Slider(minimum=0.1, maximum=5, value=1, step=0.1, label='速度 Speed')