def pre_save(path): processor = AudioProcessor() embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(args.model_path)) embedder_net.eval() origin_path = join(path, 'origin') for speaker in os.listdir(origin_path): speaker = join(origin_path, speaker) for corpus in os.listdir(speaker): corpus = join(speaker, corpus) os.makedirs(corpus.replace('origin', 'audio')) os.makedirs(corpus.replace('origin', 'spectrogram')) os.makedirs(corpus.replace('origin', 'text')) os.makedirs(corpus.replace('origin', 'dvector')) for item in os.listdir(corpus): if item[-4:] == 'flac': item = join(corpus, item) audio = processor.load_audio(item) audio_path = item.replace('origin', 'audio') melspec = processor.process_audio(audio, audio_path) np.save( item.replace('origin', 'spectrogram')[:-5], melspec) dvector = dvector_make(item, embedder_net) np.save(item.replace('origin', 'dvector')[:-5], dvector) elif item[-3:] == 'txt': srcpath = join(corpus, item) trgpath = srcpath.replace('origin', 'text') shutil.copy2(srcpath, trgpath) else: print("There are unexpected files!") return
def __init__(self, model_path, enroll_dir): self.embedder = SpeechEmbedder() self.embedder.load_state_dict(torch.load(model_path)) self.embedder.eval() self.speakers = dict() files = os.listdir(enroll_dir) for spkr_file in files: speaker_id = os.path.splitext(spkr_file)[0] path = os.path.join(enroll_dir, spkr_file) self.speakers[speaker_id] = np.load(path)
def main(args): if args['--datadir']: data_dir = args['--datadir'] else: data_dir = hp.data.eval_path device = torch.device(hp.device) print('[INFO] device: %s' % device) dataset_name = os.path.basename(os.path.normpath(data_dir)) print('[INFO] dataset: %s' % dataset_name) # Load model embed_net = SpeechEmbedder().to(device) embed_net.load_state_dict(torch.load(hp.model.model_path)) embed_net.eval() # Features eval_gen = DL.ARKUtteranceGenerator(data_dir, apply_vad=True) eval_loader = DataLoader(eval_gen, batch_size=hp.test.M, shuffle=False, num_workers=hp.test.num_workers, drop_last=False) dwriter = kaldiio.WriteHelper('ark,scp:%s_dvecs.ark,%s_dvecs.scp' % (dataset_name, dataset_name)) cnt = 0 processed = [] for key_bt, feat_bt in eval_loader: feat_bt = feat_bt.to(device) t_start = time.time() # feat dim [M_files, n_chunks_in_file, frames, n_mels] mf, nchunks, frames, nmels = feat_bt.shape print(feat_bt.shape) stack_shape = (mf * nchunks, frames, nmels) feat_stack = torch.reshape(feat_bt, stack_shape) dvec_stack = embed_net(feat_stack) dvec_bt = torch.reshape( dvec_stack, (mf, dvec_stack.size(0) // mf, dvec_stack.size(1))) for key, dvec in zip(key_bt, dvec_bt): mean_dvec = torch.mean(dvec, dim=0).detach() mean_dvec = mean_dvec.cpu().numpy() dwriter(key, mean_dvec) processed.append(key) print('%d. Processed: %s' % (cnt, key)) cnt += 1 t_end = time.time() print('Elapsed: %.4f' % (t_end - t_start))
def test(model_path): sequence = [] if hp.data.data_preprocessed: test_dataset = SpeakerDatasetTIMITPreprocessed() else: test_dataset = SpeakerDatasetTIMIT() test_loader = DataLoader(test_dataset, batch_size=1, shuffle=True, num_workers=hp.test.num_workers, drop_last=True) embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(model_path)) embedder_net.eval() device = torch.device(hp.device) count = 0 embeddings = [] devector = [] for e in range(hp.test.epochs): print("hp.test.epochs", hp.test.epochs) for batch_id, mel_db_batch in enumerate(test_loader): #print("mel_db_batch.shape",batch_id,mel_db_batch.shape) #(1,10,160,40) assert hp.test.M % 2 == 0 test_batch = mel_db_batch test_batch = torch.reshape( test_batch, (hp.test.N * hp.test.M, test_batch.size(2), test_batch.size(3))) #print("test_batch.shape",test_batch.shape) #(10,160,40) enrollment_embeddings = embedder_net(test_batch) #print("enrollment_embeddings.shape", enrollment_embeddings.shape) # (10,256) # enrollment_embeddings = torch.reshape(enrollment_embeddings,(hp.test.N, hp.test.M, enrollment_embeddings.size(1))) embedding = enrollment_embeddings.detach().numpy() embeddings.append(embedding) #print('embedding.shape', type(embedding), embedding.shape) # (10,256) devector = np.concatenate(embeddings, axis=0) count = count + 1 np.save('/run/media/rice/DATA/speakerdvector.npy', devector)
def get_embeddings(model_path): #confirm that hp.training is True assert hp.training == True, 'mode should be set as train mode' train_dataset = SpeakerDatasetTIMITPreprocessed(shuffle=False) train_loader = DataLoader(train_dataset, batch_size=hp.train.N, shuffle=False, num_workers=hp.test.num_workers, drop_last=True) embedder_net = SpeechEmbedder().cuda() embedder_net.load_state_dict(torch.load(model_path)) embedder_net.eval() epoch_embeddings = [] with torch.no_grad(): for e in range(epoch): #hyper parameter batch_embeddings = [] print('Processing epoch %d:' % (1 + e)) for batch_id, mel_db_batch in enumerate(train_loader): print(mel_db_batch.shape) mel_db_batch = torch.reshape( mel_db_batch, (hp.train.N * hp.train.M, mel_db_batch.size(2), mel_db_batch.size(3))) batch_embedding = embedder_net(mel_db_batch.cuda()) batch_embedding = torch.reshape( batch_embedding, (hp.train.N, hp.train.M, batch_embedding.size(1))) batch_embedding = get_centroids(batch_embedding.cpu().clone()) batch_embeddings.append(batch_embedding) epoch_embedding = torch.cat(batch_embeddings, 0) epoch_embedding = epoch_embedding.unsqueeze(1) epoch_embeddings.append(epoch_embedding) avg_embeddings = torch.cat(epoch_embeddings, 1) avg_embeddings = get_centroids(avg_embeddings) return avg_embeddings
import numpy as np from numpy import dot from numpy.linalg import norm import random # from hparam import hparam as hp from speech_embedder_net import SpeechEmbedder from VAD_segments import VAD_chunk # import torch import librosa import math encoder = SpeechEmbedder() encoder.load_state_dict( torch.load("speaker_verification/final_epoch_950_batch_id_103.model")) encoder.eval() def concat_segs(times, segs): #Concatenate continuous voiced segments concat_seg = [] seg_concat = segs[0] for i in range(0, len(times) - 1): if times[i][1] == times[i + 1][0]: seg_concat = np.concatenate((seg_concat, segs[i + 1])) else: concat_seg.append(seg_concat) seg_concat = segs[i + 1]
# test_dataset = SpeakerDatasetTIMITPreprocessed(hp.data.zhouxingchi_path, hp.test.M) # else: # test_dataset = SpeakerDatasetTIMIT(hp.data.zhouxingchi_path, hp.test.M) train_loader = DataLoader(train_dataset, batch_size=hp.train.N, shuffle=True, num_workers=hp.train.num_workers, drop_last=True) test_loader = DataLoader(test_dataset, batch_size=hp.test.N, shuffle=True, num_workers=hp.test.num_workers, drop_last=True) embedder_net = SpeechEmbedder().to(device) embedder_net.load_state_dict(torch.load(model_path)) ge2e_loss = GE2ELoss(device) #Both net and loss have trainable parameters optimizer = torch.optim.SGD([{ 'params': embedder_net.parameters() }, { 'params': ge2e_loss.parameters() }], lr=hp.train.lr) #os.makedirs(hp.train.checkpoint_dir, exist_ok=True) embedder_net.train()
#!/usr/bin/env python3 # -*- coding: utf-8 -*- import glob import os import librosa import numpy as np from hparam import hparam as hp from speech_embedder_net import SpeechEmbedder, GE2ELoss, get_centroids, get_cossim import torch import pandas as pd import pickle audio_path = glob.glob(os.path.dirname(hp.unprocessed_data)) model_path = hp.model.model_path embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(model_path)) embedder_net.eval() def save_traindevector(): print("start text independent utterance feature extraction") os.makedirs(hp.data.train_path, exist_ok=True) # make folder to save train file os.makedirs(hp.data.test_path, exist_ok=True) # make folder to save test file utter_min_len = (hp.data.tisv_frame * hp.data.hop + hp.data.window ) * hp.data.sr # lower bound of utterance length total_speaker_num = len(audio_path)
def test_my(model_path, threash): assert (hp.test.M % 2 == 0), 'hp.test.M should be set even' assert (hp.training == False), 'mode should be set for test mode' # preapaer for the enroll dataset and verification dataset test_dataset_enrollment = SpeakerDatasetTIMITPreprocessed() test_dataset_enrollment.path = hp.data.test_path test_dataset_enrollment.file_list = os.listdir( test_dataset_enrollment.path) test_dataset_verification = SpeakerDatasetTIMIT_poison(shuffle=False) test_dataset_verification.path = hp.poison.poison_test_path try_times = hp.poison.num_centers * 2 test_dataset_verification.file_list = os.listdir( test_dataset_verification.path) test_loader_enrollment = DataLoader(test_dataset_enrollment, batch_size=hp.test.N, shuffle=True, num_workers=hp.test.num_workers, drop_last=True) test_loader_verification = DataLoader(test_dataset_verification, batch_size=1, shuffle=False, num_workers=hp.test.num_workers, drop_last=True) embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(model_path)) embedder_net.eval() results_line = [] results_success = [] for e in range(hp.test.epochs): for batch_id, mel_db_batch_enrollment in enumerate( test_loader_enrollment): mel_db_batch_verification = test_loader_verification.__iter__( ).__next__() mel_db_batch_verification = mel_db_batch_verification.repeat( (hp.test.N, 1, 1, 1)) enrollment_batch = mel_db_batch_enrollment verification_batch = mel_db_batch_verification enrollment_batch = torch.reshape( enrollment_batch, (hp.test.N * hp.test.M, enrollment_batch.size(2), enrollment_batch.size(3))) verification_batch = torch.reshape( verification_batch, (hp.test.N * try_times, verification_batch.size(2), verification_batch.size(3))) perm = random.sample(range(0, verification_batch.size(0)), verification_batch.size(0)) unperm = list(perm) for i, j in enumerate(perm): unperm[j] = i verification_batch = verification_batch[perm] enrollment_embeddings = embedder_net(enrollment_batch) verification_embeddings = embedder_net(verification_batch) verification_embeddings = verification_embeddings[unperm] enrollment_embeddings = torch.reshape( enrollment_embeddings, (hp.test.N, hp.test.M, enrollment_embeddings.size(1))) verification_embeddings = torch.reshape( verification_embeddings, (hp.test.N, try_times, verification_embeddings.size(1))) enrollment_centroids = get_centroids(enrollment_embeddings) sim_matrix = get_cossim_nosame(verification_embeddings, enrollment_centroids) ######################## # calculating ASR res = sim_matrix.max(0)[0].max(0)[0] result_line = torch.Tensor([ (res >= i / 10).sum().float() / hp.test.N for i in range(0, 10) ]) #print(result_line ) results_line.append(result_line) result_success = (res >= threash).sum() / hp.test.N print('ASR for Epoch %d : %.3f' % (e + 1, result_success.item())) results_success.append(result_success) print('Overall ASR : %.3f' % (sum(results_success).item() / len(results_success)))
def main(): args = get_args() if args.corpus == 'CAAML': dataset = CAAMLDataset(args.data_path, args.save_path, args.split) elif args.corpus == 'ICSI': dataset = ICSIDataset(args.data_path, args.save_path) elif args.corpus == 'TIMIT': print('Dataset not yet implemented...') exit() # Load speech embedder net device = 'cuda' if torch.cuda.is_available() else 'cpu' embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(hp.model.model_path)) embedder_net = embedder_net.to(device) embedder_net.eval() all_seqs = [] all_cids = [] all_times = [] sessions = [] for path in dataset.data_path: print('\n============== Processing {} ============== '.format(path)) # Get session name session = dataset.get_session(path) if session is None: print('ERR: Session not found in any split, skipping...') continue # Get annotations annotations = dataset.get_annotations(path) if annotations is None: print('ERR: No suitable annotations found, skipping...') continue # Segment the audio with VAD times, segments = timeit(VAD_chunk, msg='Getting VAD chunks')(hp.data.aggressiveness, path) if segments == []: print('ERR: No segments found, skipping...') continue # Concatenate segments segments, times = concat(segments, times) # Get STFT frames frames, times = get_STFTs(segments, times) frames = np.stack(frames, axis=2) frames = torch.tensor(np.transpose(frames, axes=(2,1,0))).to(device) # Get speaker embeddings embeddings = get_speaker_embeddings(embedder_net, frames) # Align speaker embeddings into a standard sequence of embeddings sequence, times = align_embeddings(embeddings.cpu().detach().numpy(), times) # Get cluster ids for each frame cluster_ids = get_cluster_ids(times, dataset, annotations) # Add the sequence and cluster ids to the list of all sessions all_seqs.append(sequence) all_cids.append(cluster_ids) all_times.append(times) sessions.append(session) # Save split dataset dataset.save(all_seqs, all_cids, all_times, sessions)
def get_centroid(embeddings, utterance_num): centroid = 0 for utterance_id, utterance in enumerate(embeddings): if utterance_id <= (utterance_num - 1): #print(utterance.shape) centroid = centroid + utterance else: break centroid = centroid / utterance_num return centroid if (__name__ == '__main__'): print('Load model successfully.') embedder_net = SpeechEmbedder().cuda() embedder_net.load_state_dict(torch.load(model_path)) inputs = np.load(data) print(inputs.shape) entrollment_nums = 1 ###we use two utterances for entrollment, and caculate their centroids inputs = torch.FloatTensor(np.transpose(inputs, axes=(0, 2, 1))).cuda() outputs = embedder_net(inputs) centroid_embeddings = get_centroid(outputs, entrollment_nums) centroid_embeddings = torch.unsqueeze(centroid_embeddings, 0).cpu() print(centroid_embeddings.size()) test_nums = len(inputs) - entrollment_nums correct_nums = 0 thres = 0.70
def test(model_path): utterances_spec = [] for utter_name in os.listdir(predict_folder): print(utter_name) # print(utter_name) if utter_name[-4:] == '.wav': utter_path = os.path.join(predict_folder, utter_name) # path of each utterance utter, sr = librosa.core.load(utter_path, hp.data.sr) # load utterance audio intervals = librosa.effects.split(utter, top_db=30) # voice activity detection utter_min_len = (hp.data.tisv_frame * hp.data.hop + hp.data.window) * hp.data.sr # lower bound of utterance length for interval in intervals: if (interval[1] - interval[0]) > utter_min_len: # If partial utterance is sufficient long, utter_part = utter[interval[0]:interval[1]] # save first and last 180 frames of spectrogram. S = librosa.core.stft(y=utter_part, n_fft=hp.data.nfft, win_length=int(hp.data.window * sr), hop_length=int(hp.data.hop * sr)) S = np.abs(S) ** 2 mel_basis = librosa.filters.mel(sr=hp.data.sr, n_fft=hp.data.nfft, n_mels=hp.data.nmels) S = np.log10(np.dot(mel_basis, S) + 1e-6) # log mel spectrogram of utterances utterances_spec.append(S[:, :hp.data.tisv_frame]) # first 180 frames of partial utterance utterances_spec.append(S[:, -hp.data.tisv_frame:]) # last 180 frames of partial utterance utterances_spec = np.array(utterances_spec) # np.save(os.path.join(hp.data.train_path, "speaker.npy")) test_loader = utterances_spec embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(model_path)) embedder_net.eval() avg_EER = 0 device = torch.device(hp.device) avg_EER = 0 predict_loader = utterances_spec enrollment_batch, verification_batch = torch.split(predict_loader, int(predict_loader.size(1) / 2), dim=1) enrollment_batch = torch.reshape(enrollment_batch, ( hp.test.N * hp.test.M // 2, enrollment_batch.size(2), enrollment_batch.size(3))) verification_batch = torch.reshape(verification_batch, ( hp.test.N * hp.test.M // 2, verification_batch.size(2), verification_batch.size(3))) perm = random.sample(range(0, verification_batch.size(0)), verification_batch.size(0)) unperm = list(perm) for i, j in enumerate(perm): unperm[j] = i verification_batch = verification_batch[perm] enrollment_embeddings = embedder_net(enrollment_batch) verification_embeddings = embedder_net(verification_batch) verification_embeddings = verification_embeddings[unperm] enrollment_embeddings = torch.reshape(enrollment_embeddings, (hp.test.N, hp.test.M // 2, enrollment_embeddings.size(1))) verification_embeddings = torch.reshape(verification_embeddings, (hp.test.N, hp.test.M // 2, verification_embeddings.size(1))) enrollment_centroids = get_centroids(enrollment_embeddings) sim_matrix = get_cossim(verification_embeddings, enrollment_centroids) diff = 1; EER = 0; EER_thresh = 0; EER_FAR = 0; EER_FRR = 0 for thres in [0.01 * i + 0.5 for i in range(50)]: sim_matrix_thresh = sim_matrix > thres FAR = (sum([sim_matrix_thresh[i].float().sum() - sim_matrix_thresh[i, :, i].float().sum() for i in range(int(hp.test.N))]) / (hp.test.N - 1.0) / (float(hp.test.M / 2)) / hp.test.N) FRR = (sum([hp.test.M / 2 - sim_matrix_thresh[i, :, i].float().sum() for i in range(int(hp.test.N))]) / (float(hp.test.M / 2)) / hp.test.N) if diff > abs(FAR - FRR): diff = abs(FAR - FRR) EER = (FAR + FRR) / 2 EER_thresh = thres EER_FAR = FAR EER_FRR = FRR avg_EER += EER print( "\nEER : %0.2f (thres:%0.2f, FAR:%0.2f, FRR:%0.2f)" % (EER, EER_thresh, EER_FAR, EER_FRR)) print("\n EER across {0} epochs: {:.4f}".format(avg_EER))
def get_model(path): speech_net = SpeechEmbedder() speech_net.load_state_dict(torch.load(path)) return speech_net.eval()
def train(model_path): FNULL = open(os.devnull, 'w') device = torch.device(hp.device) if hp.data.data_preprocessed: train_dataset = SpeakerDatasetTIMITPreprocessed(is_training=True) test_dataset = SpeakerDatasetTIMITPreprocessed(is_training=False) else: train_dataset = SpeakerDatasetTIMIT(is_training=True) test_dataset = SpeakerDatasetTIMIT(is_training=False) train_loader = DataLoader(train_dataset, batch_size=hp.train.N, shuffle=True, num_workers=hp.train.num_workers, drop_last=True) test_loader = DataLoader(test_dataset, batch_size=hp.test.N, shuffle=True, num_workers=hp.test.num_workers, drop_last=True) embedder_net = SpeechEmbedder().to(device) if hp.train.restore: subprocess.call([ 'gsutil', 'cp', 'gs://edinquake/asr/baseline_TIMIT/model_best.pkl', model_path ], stdout=FNULL, stderr=subprocess.STDOUT) embedder_net.load_state_dict(torch.load(model_path)) ge2e_loss = GE2ELoss(device) #Both net and loss have trainable parameters optimizer = torch.optim.SGD([{ 'params': embedder_net.parameters() }, { 'params': ge2e_loss.parameters() }], lr=hp.train.lr) os.makedirs(hp.train.checkpoint_dir, exist_ok=True) iteration = 0 best_validate = float('inf') print('***Started training at {}***'.format(datetime.now())) for e in range(hp.train.epochs): total_loss = 0 progress_bar = tqdm(train_loader, desc='| Epoch {:03d}'.format(e), leave=False, disable=False) embedder_net.train() # Iterate over the training set for batch_id, mel_db_batch in enumerate(progress_bar): mel_db_batch = mel_db_batch.to(device) mel_db_batch = torch.reshape( mel_db_batch, (hp.train.N * hp.train.M, mel_db_batch.size(2), mel_db_batch.size(3))) perm = random.sample(range(0, hp.train.N * hp.train.M), hp.train.N * hp.train.M) unperm = list(perm) for i, j in enumerate(perm): unperm[j] = i mel_db_batch = mel_db_batch[perm] #gradient accumulates optimizer.zero_grad() embeddings = embedder_net(mel_db_batch) embeddings = embeddings[unperm] embeddings = torch.reshape( embeddings, (hp.train.N, hp.train.M, embeddings.size(1))) #get loss, call backward, step optimizer loss = ge2e_loss( embeddings) #wants (Speaker, Utterances, embedding) loss.backward() torch.nn.utils.clip_grad_norm_(embedder_net.parameters(), 3.0) torch.nn.utils.clip_grad_norm_(ge2e_loss.parameters(), 1.0) optimizer.step() total_loss = total_loss + loss.item() iteration += 1 # Update statistics for progress bar progress_bar.set_postfix(iteration=iteration, loss=loss.item(), total_loss=total_loss / (batch_id + 1)) print('| Epoch {:03d}: total_loss {}'.format(e, total_loss)) # Perform validation embedder_net.eval() validation_loss = 0 for batch_id, mel_db_batch in enumerate(test_loader): mel_db_batch = mel_db_batch.to(device) mel_db_batch = torch.reshape( mel_db_batch, (hp.test.N * hp.test.M, mel_db_batch.size(2), mel_db_batch.size(3))) perm = random.sample(range(0, hp.test.N * hp.test.M), hp.test.N * hp.test.M) unperm = list(perm) for i, j in enumerate(perm): unperm[j] = i mel_db_batch = mel_db_batch[perm] embeddings = embedder_net(mel_db_batch) embeddings = embeddings[unperm] embeddings = torch.reshape( embeddings, (hp.test.N, hp.test.M, embeddings.size(1))) #get loss loss = ge2e_loss( embeddings) #wants (Speaker, Utterances, embedding) validation_loss += loss.item() validation_loss /= len(test_loader) print('validation_loss: {}'.format(validation_loss)) if validation_loss <= best_validate: best_validate = validation_loss # Save best filename = 'model_best.pkl' ckpt_model_path = os.path.join(hp.train.checkpoint_dir, filename) torch.save(embedder_net.state_dict(), ckpt_model_path) subprocess.call([ 'gsutil', 'cp', ckpt_model_path, 'gs://edinquake/asr/baseline_TIMIT/model_best.pkl' ], stdout=FNULL, stderr=subprocess.STDOUT) filename = 'model_last.pkl' ckpt_model_path = os.path.join(hp.train.checkpoint_dir, filename) torch.save(embedder_net.state_dict(), ckpt_model_path)
def test(model_path): test_dataset = SpeakerDatasetTIMITPreprocessed() test_loader = DataLoader(test_dataset, batch_size=hp.test.N, shuffle=True, num_workers=hp.test.num_workers, drop_last=True) embedder_net = SpeechEmbedder() embedder_net.load_state_dict(torch.load(model_path)) embedder_net.eval() avg_EER = 0 for e in range(hp.test.epochs): batch_avg_EER = 0 for batch_id, mel_db_batch in enumerate(test_loader): assert hp.test.M % 2 == 0 enrollment_batch, verification_batch = torch.split( mel_db_batch, int(mel_db_batch.size(1) / 2), dim=1) enrollment_batch = torch.reshape( enrollment_batch, (hp.test.N * hp.test.M // 2, enrollment_batch.size(2), enrollment_batch.size(3))) verification_batch = torch.reshape( verification_batch, (hp.test.N * hp.test.M // 2, verification_batch.size(2), verification_batch.size(3))) perm = random.sample(range(0, verification_batch.size(0)), verification_batch.size(0)) unperm = list(perm) for i, j in enumerate(perm): unperm[j] = i verification_batch = verification_batch[perm] enrollment_embeddings = embedder_net(enrollment_batch) verification_embeddings = embedder_net(verification_batch) verification_embeddings = verification_embeddings[unperm] enrollment_embeddings = torch.reshape( enrollment_embeddings, (hp.test.N, hp.test.M // 2, enrollment_embeddings.size(1))) verification_embeddings = torch.reshape( verification_embeddings, (hp.test.N, hp.test.M // 2, verification_embeddings.size(1))) enrollment_centroids = get_centroids(enrollment_embeddings) sim_matrix = get_cossim(verification_embeddings, enrollment_centroids) # calculating EER diff = 1 EER = 0 EER_thresh = 0 EER_FAR = 0 EER_FRR = 0 for thres in [0.01 * i + 0.3 for i in range(70)]: sim_matrix_thresh = sim_matrix > thres FAR = (sum([ sim_matrix_thresh[i].float().sum() - sim_matrix_thresh[i, :, i].float().sum() for i in range(int(hp.test.N)) ]) / (hp.test.N - 1.0) / (float(hp.test.M / 2)) / hp.test.N) FRR = (sum([ hp.test.M / 2 - sim_matrix_thresh[i, :, i].float().sum() for i in range(int(hp.test.N)) ]) / (float(hp.test.M / 2)) / hp.test.N) # Save threshold when FAR = FRR (=EER) if diff > abs(FAR - FRR): diff = abs(FAR - FRR) EER = (FAR + FRR) / 2 EER_thresh = thres EER_FAR = FAR EER_FRR = FRR batch_avg_EER += EER print("\nEER : %0.2f (thres:%0.2f, FAR:%0.2f, FRR:%0.2f)" % (EER, EER_thresh, EER_FAR, EER_FRR)) avg_EER += batch_avg_EER / (batch_id + 1) avg_EER = avg_EER / hp.test.epochs print("\n EER across {0} epochs: {1:.4f}".format(hp.test.epochs, avg_EER))
def train(model_path): device = torch.device(hp.device) train_dataset = SpeakerDatasetTIMITPreprocessed() train_loader = DataLoader(train_dataset, batch_size=hp.train.N, shuffle=True, num_workers=hp.train.num_workers, drop_last=True) embedder_net = SpeechEmbedder().to(device) if hp.train.restore: embedder_net.load_state_dict(torch.load(model_path)) ge2e_loss = GE2ELoss(device) #Both net and loss have trainable parameters optimizer = torch.optim.SGD([{ 'params': embedder_net.parameters() }, { 'params': ge2e_loss.parameters() }], lr=hp.train.lr) os.makedirs(hp.train.checkpoint_dir, exist_ok=True) embedder_net.train() iteration = 0 for e in range(hp.train.epochs): total_loss = 0 for batch_id, mel_db_batch in enumerate(train_loader): mel_db_batch = mel_db_batch.to(device) mel_db_batch = torch.reshape( mel_db_batch, (hp.train.N * hp.train.M, mel_db_batch.size(2), mel_db_batch.size(3))) perm = random.sample(range(0, hp.train.N * hp.train.M), hp.train.N * hp.train.M) unperm = list(perm) for i, j in enumerate(perm): unperm[j] = i mel_db_batch = mel_db_batch[perm] #gradient accumulates optimizer.zero_grad() embeddings = embedder_net(mel_db_batch) embeddings = embeddings[unperm] embeddings = torch.reshape( embeddings, (hp.train.N, hp.train.M, embeddings.size(1))) #get loss, call backward, step optimizer loss = ge2e_loss( embeddings) #wants (Speaker, Utterances, embedding) loss.backward() torch.nn.utils.clip_grad_norm_(embedder_net.parameters(), 3.0) torch.nn.utils.clip_grad_norm_(ge2e_loss.parameters(), 1.0) optimizer.step() total_loss = total_loss + loss iteration += 1 if (batch_id + 1) % hp.train.log_interval == 0: mesg = "{0}\tEpoch:{1}[{2}/{3}],Iteration:{4}\tLoss:{5:.4f}\tTLoss:{6:.4f}\t\n".format( time.ctime(), e + 1, batch_id + 1, len(train_dataset) // hp.train.N, iteration, loss, total_loss / (batch_id + 1)) print(mesg) if hp.train.log_file is not None: ''' if os.path.exists(hp.train.log_file): os.mknod(hp.train.log_file) ''' with open(hp.train.log_file, 'w') as f: f.write(mesg) if hp.train.checkpoint_dir is not None and ( e + 1) % hp.train.checkpoint_interval == 0: embedder_net.eval().cpu() ckpt_model_filename = "ckpt_epoch_" + str( e + 1) + "_batch_id_" + str(batch_id + 1) + ".pth" ckpt_model_path = os.path.join(hp.train.checkpoint_dir, ckpt_model_filename) torch.save(embedder_net.state_dict(), ckpt_model_path) embedder_net.to(device).train() #save model embedder_net.eval().cpu() save_model_filename = "final_epoch_" + str(e + 1) + "_batch_id_" + str( batch_id + 1) + ".model" save_model_path = os.path.join(hp.train.checkpoint_dir, save_model_filename) torch.save(embedder_net.state_dict(), save_model_path) print("\nDone, trained model saved at", save_model_path)
default='/data4/shuyang/TIMIT_spk', help='Output directory', ) args = parser.parse_args() # Parse arguments data_dir = args.data_dir model_dir = args.model_dir out_dir = args.out_dir os.makedirs(out_dir, exist_ok=True) # Load latest model latest_model_path = max(glob.glob(os.path.join(model_dir, '*')), key=os.path.getctime) print('Latest model from: {}'.format(latest_model_path)) embedder_net = SpeechEmbedder().to(DEVICE) embedder_net.load_state_dict(torch.load(latest_model_path)) embedder_net.eval() print('MODEL with {:,} parameters'.format(count_parameters(embedder_net))) print(embedder_net) # Get audio glob_path = os.path.join( data_dir, '*', # Split '*', # Disk (DR<X>) '*', # Speaker folder '*.WAV', # Audio files ) audio_files = glob.glob(glob_path) n_files = len(audio_files)