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| import yaml | |
| from typing import Dict, List | |
| import torch | |
| import torch.nn as nn | |
| import numpy as np | |
| import librosa | |
| from scipy.io.wavfile import write | |
| from utils import ignore_warnings; ignore_warnings() | |
| from utils import parse_yaml, load_ss_model | |
| from models.clap_encoder import CLAP_Encoder | |
| def build_audiosep(config_yaml, checkpoint_path, device): | |
| configs = parse_yaml(config_yaml) | |
| query_encoder = CLAP_Encoder().eval() | |
| model = load_ss_model( | |
| configs=configs, | |
| checkpoint_path=checkpoint_path, | |
| query_encoder=query_encoder | |
| ).eval().to(device) | |
| print(f'Load AudioSep model from [{checkpoint_path}]') | |
| return model | |
| def inference(model, audio_file, text, output_file, device='cuda'): | |
| print(f'Separate audio from [{audio_file}] with textual query [{text}]') | |
| mixture, fs = librosa.load(audio_file, sr=32000, mono=True) | |
| with torch.no_grad(): | |
| text = [text] | |
| conditions = model.query_encoder.get_query_embed( | |
| modality='text', | |
| text=text, | |
| device=device | |
| ) | |
| input_dict = { | |
| "mixture": torch.Tensor(mixture)[None, None, :].to(device), | |
| "condition": conditions, | |
| } | |
| sep_segment = model.ss_model.chunk_inference(input_dict) | |
| write(output_file, 32000, np.round(sep_segment * 32767).astype(np.int16)) | |
| print(f'Write separated audio to [{output_file}]') | |
| if __name__ == '__main__': | |
| device = torch.device('cuda' if torch.cuda.is_available() else 'cpu') | |
| model = build_audiosep( | |
| config_yaml='config/audiosep_base.yaml', | |
| checkpoint_path='checkpoint/step=3920000.ckpt', | |
| device=device) | |
| audio_file = '/mnt/bn/data-xubo/project/AudioShop/YT_audios/Y3VHpLxtd498.wav' | |
| text = 'pigeons are cooing in the background' | |
| output_file='separated_audio.wav' | |
| inference(model, audio_file, text, output_file, device) | |