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import gradio as gr
import numpy as np
import torch
from transformers import VitsModel, AutoTokenizer, pipeline
# load speech translation checkpoint
asr_pipe = pipeline("automatic-speech-recognition", model="openai/whisper-base")
# load text-to-speech checkpoint
model = VitsModel.from_pretrained("facebook/mms-tts-fra")
tokenizer = AutoTokenizer.from_pretrained("facebook/mms-tts-fra")
def translate(audio):
outputs = asr_pipe(
audio,
max_new_tokens=512,
generate_kwargs={"task": "transcribe", "language": "fr"}
)
return outputs["text"]
def synthesise(text):
inputs = tokenizer(text=text, return_tensors="pt")
with torch.no_grad():
speech = model(**inputs).waveform
speech = speech[0] # remove batch dimension
return speech
def speech_to_speech_translation(audio):
translated_text = translate(audio)
synthesised_speech = synthesise(translated_text)
synthesised_speech = (synthesised_speech.numpy() * 32767).astype(np.int16)
return 16000, synthesised_speech
title = "Cascaded STST"
description = """
Demo for cascaded speech-to-speech translation (STST), mapping from source speech in any language to target speech in French. Demo uses OpenAI's [Whisper Base](https://huggingface.co/openai/whisper-base) model for speech translation, and Facebook's
[MMS TTS French](https://huggingface.co/facebook/mms-tts-fra) model for text-to-speech:
"""
demo = gr.Blocks()
mic_translate = gr.Interface(
fn=speech_to_speech_translation,
inputs=gr.Audio(source="microphone", type="filepath"),
outputs=gr.Audio(label="Generated Speech", type="numpy"),
title=title,
description=description,
)
file_translate = gr.Interface(
fn=speech_to_speech_translation,
inputs=gr.Audio(source="upload", type="filepath"),
outputs=gr.Audio(label="Generated Speech", type="numpy"),
examples=[["./example.wav"]],
title=title,
description=description,
)
with demo:
gr.TabbedInterface([mic_translate, file_translate], ["Microphone", "Audio File"])
demo.launch()
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