app.py

import gradio as gr
import torch
from TTS.api import TTS
import os
os.environ["COQUI_TOS_AGREED"] = "1"

device = "cuda"

tts = TTS("tts_models/multilingual/multi-dataset/xtts_v2").to(device)

def clone(text, audio):
    tts.tts_to_file(text=text, speaker_wav=audio, language="en", file_path="./output.wav")
    return "./output.wav"

iface = gr.Interface(fn=clone, 
                     inputs=["text",gr.Audio(type='filepath')], 
                     outputs=gr.Audio(type='filepath'))
iface.launch()