diff --git a/emo_gen.py b/emo_gen.py new file mode 100644 index 0000000..0856ab2 --- /dev/null +++ b/emo_gen.py @@ -0,0 +1,169 @@ +import torch +import torch.nn as nn +from torch.utils.data import Dataset +from torch.utils.data import DataLoader +from transformers import Wav2Vec2Processor +from transformers.models.wav2vec2.modeling_wav2vec2 import ( + Wav2Vec2Model, + Wav2Vec2PreTrainedModel, +) +import librosa +import numpy as np +import argparse +from config import config +import utils +import os +from tqdm import tqdm + + +class RegressionHead(nn.Module): + r"""Classification head.""" + + def __init__(self, config): + super().__init__() + + self.dense = nn.Linear(config.hidden_size, config.hidden_size) + self.dropout = nn.Dropout(config.final_dropout) + self.out_proj = nn.Linear(config.hidden_size, config.num_labels) + + def forward(self, features, **kwargs): + x = features + x = self.dropout(x) + x = self.dense(x) + x = torch.tanh(x) + x = self.dropout(x) + x = self.out_proj(x) + + return x + + +class EmotionModel(Wav2Vec2PreTrainedModel): + r"""Speech emotion classifier.""" + + def __init__(self, config): + super().__init__(config) + + self.config = config + self.wav2vec2 = Wav2Vec2Model(config) + self.classifier = RegressionHead(config) + self.init_weights() + + def forward( + self, + input_values, + ): + outputs = self.wav2vec2(input_values) + hidden_states = outputs[0] + hidden_states = torch.mean(hidden_states, dim=1) + logits = self.classifier(hidden_states) + + return hidden_states, logits + + +class AudioDataset(Dataset): + def __init__(self, list_of_wav_files, sr, processor): + self.list_of_wav_files = list_of_wav_files + self.processor = processor + self.sr = sr + + def __len__(self): + return len(self.list_of_wav_files) + + def __getitem__(self, idx): + wav_file = self.list_of_wav_files[idx] + audio_data, _ = librosa.load(wav_file, sr=self.sr) + processed_data = self.processor(audio_data, sampling_rate=self.sr)[ + "input_values" + ][0] + return torch.from_numpy(processed_data) + + +model_name = "./emotional/wav2vec2-large-robust-12-ft-emotion-msp-dim" +processor = Wav2Vec2Processor.from_pretrained(model_name) +model = EmotionModel.from_pretrained(model_name) + + +def process_func( + x: np.ndarray, + sampling_rate: int, + model: EmotionModel, + processor: Wav2Vec2Processor, + device: str, + embeddings: bool = False, +) -> np.ndarray: + r"""Predict emotions or extract embeddings from raw audio signal.""" + model = model.to(device) + y = processor(x, sampling_rate=sampling_rate) + y = y["input_values"][0] + y = torch.from_numpy(y).unsqueeze(0).to(device) + + # run through model + with torch.no_grad(): + y = model(y)[0 if embeddings else 1] + + # convert to numpy + y = y.detach().cpu().numpy() + + return y + + +def get_emo(path): + wav, sr = librosa.load(path, 16000) + device = config.bert_gen_config.device + return process_func( + np.expand_dims(wav, 0).astype(np.float), + sr, + model, + processor, + device, + embeddings=True, + ).squeeze(0) + + +if __name__ == "__main__": + parser = argparse.ArgumentParser() + parser.add_argument( + "-c", "--config", type=str, default=config.bert_gen_config.config_path + ) + parser.add_argument( + "--num_processes", type=int, default=config.bert_gen_config.num_processes + ) + args, _ = parser.parse_known_args() + config_path = args.config + hps = utils.get_hparams_from_file(config_path) + + device = config.bert_gen_config.device + + model_name = "./emotional/wav2vec2-large-robust-12-ft-emotion-msp-dim" + processor = ( + Wav2Vec2Processor.from_pretrained(model_name) + if processor is None + else processor + ) + model = ( + EmotionModel.from_pretrained(model_name).to(device) + if model is None + else model.to(device) + ) + + lines = [] + with open(hps.data.training_files, encoding="utf-8") as f: + lines.extend(f.readlines()) + + with open(hps.data.validation_files, encoding="utf-8") as f: + lines.extend(f.readlines()) + + wavnames = [line.split("|")[0] for line in lines] + dataset = AudioDataset(wavnames, 16000, processor) + data_loader = DataLoader(dataset, batch_size=1, shuffle=False, num_workers=16) + + with torch.no_grad(): + for i, data in tqdm(enumerate(data_loader), total=len(data_loader)): + wavname = wavnames[i] + emo_path = wavname.replace(".wav", ".emo.npy") + if os.path.exists(emo_path): + continue + emb = model(data.to(device))[0].detach().cpu().numpy() + np.save(emo_path, emb) + + print("Emo vec 生成完毕!")