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import random
import numpy as np
import torch
import gradio as gr
from chatterbox.tts import ChatterboxTTS
DEVICE = "cuda" if torch.cuda.is_available() else "cpu"
def set_seed(seed: int):
torch.manual_seed(seed)
torch.cuda.manual_seed(seed)
torch.cuda.manual_seed_all(seed)
random.seed(seed)
np.random.seed(seed)
def load_model():
model = ChatterboxTTS.from_pretrained(DEVICE)
return model
def generate(model, text, audio_prompt_path, exaggeration, temperature, seed_num, cfgw):
if model is None:
model = ChatterboxTTS.from_pretrained(DEVICE)
if seed_num != 0:
set_seed(int(seed_num))
wav = model.generate(
text,
audio_prompt_path=audio_prompt_path,
exaggeration=exaggeration,
temperature=temperature,
cfg_weight=cfgw,
)
return (model.sr, wav.squeeze(0).numpy())
with gr.Blocks() as demo:
model_state = gr.State(None) # Loaded once per session/user
with gr.Row():
with gr.Column():
text = gr.Textbox(value="What does the fox say?", label="Text to synthesize")
ref_wav = gr.Audio(sources=["upload", "microphone"], type="filepath", label="Reference Audio File", value=None)
exaggeration = gr.Slider(0.25, 2, step=.05, label="Exaggeration (Neutral = 0.5, extreme values can be unstable)", value=.5)
cfg_weight = gr.Slider(0.2, 1, step=.05, label="CFG/Pace", value=0.5)
with gr.Accordion("More options", open=False):
seed_num = gr.Number(value=0, label="Random seed (0 for random)")
temp = gr.Slider(0.05, 5, step=.05, label="temperature", value=.8)
run_btn = gr.Button("Generate", variant="primary")
with gr.Column():
audio_output = gr.Audio(label="Output Audio")
demo.load(fn=load_model, inputs=[], outputs=model_state)
run_btn.click(
fn=generate,
inputs=[
model_state,
text,
ref_wav,
exaggeration,
temp,
seed_num,
cfg_weight,
],
outputs=audio_output,
)
if __name__ == "__main__":
demo.queue(
max_size=50,
default_concurrency_limit=1,
).launch(share=True)
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