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vocos-bark
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import torch
from threading import Thread

from transformers import AutoProcessor
from transformers import set_seed

from utils.vocos_bark import BarkModel
from scipy.io.wavfile import write
from pydub import AudioSegment

import numpy as np

import os
import gradio as gr
import uuid
import io


set_seed(0)

def _grab_best_device(use_gpu=True):
    if torch.cuda.device_count() > 0 and use_gpu:
        device = "cuda"
    else:
        device = "cpu"
    return device

device = _grab_best_device()

HUB_PATH = "suno/bark"

processor = AutoProcessor.from_pretrained(HUB_PATH)

speaker_embeddings = sorted([key for key in processor.speaker_embeddings.keys() if "speaker" in key])

SAMPLE_RATE = 24_000


# import model
if device == "cpu":
    bark = BarkModel.from_pretrained(HUB_PATH)
else:
    bark = BarkModel.from_pretrained(HUB_PATH).to(device)
    bark = bark.to_bettertransformer()


# streaming inference
def generate_audio(text, voice_preset = None, lag = 0):
    if voice_preset not in speaker_embeddings:
        voice_preset = None
    
    sentences = [
        text,
    ]
    inputs = processor(sentences, voice_preset=voice_preset).to(device)
    # Run the generation in a separate thread, so that we can fetch the generated text in a non-blocking way.

    waveform = bark.generate(
        **inputs, coarse_temperature = 0.8, semantic_temperature = 0.5
    )

    return (SAMPLE_RATE, waveform.squeeze().cpu().numpy())



# Gradio blocks demo    
with gr.Blocks() as demo_blocks:
    gr.Markdown("""<h1 align="center">🐶BARK with Vocos</h1>""")
    gr.HTML("""<h3 style="text-align:center;">📢Audio Streaming powered by Gradio 🦾! </h3>""")
    with gr.Group():
      with gr.Row():
        inp_text = gr.Textbox(label="What should Bark say?", info="Enter text here")
        dd = gr.Dropdown(
                speaker_embeddings,
                value=None, 
                label="Available voice presets", 
                info="Defaults to no speaker embeddings!"
                )
    
    with gr.Row():
        btn = gr.Button("Bark with Vocos TTS")
    
    with gr.Row():
        out_audio = gr.Audio(type="numpy", autoplay=True)
        btn.click(generate_audio, [inp_text, dd], out_audio)

demo_blocks.queue().launch(debug=True)