Duplicate from pytorch/Tacotron2

Co-authored-by: Ahsen Khaliq <akhaliq@users.noreply.huggingface.co>

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README.md

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+---
+title: Tacotron2
+emoji: 🏃
+colorFrom: green
+colorTo: blue
+sdk: gradio
+app_file: app.py
+pinned: false
+duplicated_from: pytorch/Tacotron2
+---
+
+Check out the configuration reference at https://huggingface.co/docs/hub/spaces#reference

app.py

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+import torch
+import torchaudio
+import gradio as gr
+import matplotlib.pyplot as plt
+
+device="cpu"
+bundle = torchaudio.pipelines.TACOTRON2_WAVERNN_PHONE_LJSPEECH
+processor = bundle.get_text_processor()
+tacotron2 = bundle.get_tacotron2().to(device)
+
+# Workaround to load model mapped on GPU
+# https://stackoverflow.com/a/61840832
+waveglow = torch.hub.load(
+    "NVIDIA/DeepLearningExamples:torchhub",
+    "nvidia_waveglow",
+    model_math="fp32",
+    pretrained=False,
+)
+checkpoint = torch.hub.load_state_dict_from_url(
+    "https://api.ngc.nvidia.com/v2/models/nvidia/waveglowpyt_fp32/versions/1/files/nvidia_waveglowpyt_fp32_20190306.pth",  # noqa: E501
+    progress=False,
+    map_location=device,
+)
+state_dict = {key.replace("module.", ""): value for key, value in checkpoint["state_dict"].items()}
+
+waveglow.load_state_dict(state_dict)
+waveglow = waveglow.remove_weightnorm(waveglow)
+waveglow = waveglow.to(device)
+waveglow.eval()
+
+def inference(text):
+
+  with torch.inference_mode():
+      processed, lengths = processor(text)
+      processed = processed.to(device)
+      lengths = lengths.to(device)
+      spec, _, _ = tacotron2.infer(processed, lengths)
+
+  plt.imshow(spec[0].cpu().detach())
+  plt.axis('off')
+  plt.savefig("test.png", bbox_inches='tight')
+
+  with torch.no_grad():
+      waveforms = waveglow.infer(spec)
+
+  torchaudio.save("output_waveglow.wav", waveforms[0:1].cpu(), sample_rate=22050)
+  return "output_waveglow.wav","test.png"
+  
+title="TACOTRON 2"
+description="Gradio demo for TACOTRON 2: The Tacotron 2 model for generating mel spectrograms from text. To use it, simply add you text or click on one of the examples to load them. Read more at the links below."
+article = "<p style='text-align: center'><a href='https://arxiv.org/abs/1712.05884' target='_blank'>Natural TTS Synthesis by Conditioning WaveNet on Mel Spectrogram Predictions</a> | <a href='https://github.com/NVIDIA/DeepLearningExamples/tree/master/PyTorch/SpeechSynthesis/Tacotron2' target='_blank'>Github Repo</a></p>"
+examples=[["life is like a box of chocolates"]]
+gr.Interface(inference,"text",[gr.outputs.Audio(type="file",label="Audio"),gr.outputs.Image(type="file",label="Spectrogram")],title=title,description=description,article=article,examples=examples).launch(enable_queue=True)

requirements.txt

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+torch
+torchaudio
+deep_phonemizer