def train(data_loader, model, criterion, optimizer, scheduler, ap, global_step, epoch): model.train() epoch_time = 0 keep_avg = KeepAverage() if use_cuda: batch_n_iter = int( len(data_loader.dataset) / (c.batch_size * num_gpus)) else: batch_n_iter = int(len(data_loader.dataset) / c.batch_size) end_time = time.time() c_logger.print_train_start() scaler = torch.cuda.amp.GradScaler() if c.mixed_precision else None for num_iter, data in enumerate(data_loader): start_time = time.time() # format data text_input, text_lengths, mel_input, mel_lengths, speaker_c,\ avg_text_length, avg_spec_length, attn_mask, _ = format_data(data) loader_time = time.time() - end_time global_step += 1 optimizer.zero_grad() # forward pass model with torch.cuda.amp.autocast(enabled=c.mixed_precision): z, logdet, y_mean, y_log_scale, alignments, o_dur_log, o_total_dur = model.forward( text_input, text_lengths, mel_input, mel_lengths, attn_mask, g=speaker_c) # compute loss loss_dict = criterion(z, y_mean, y_log_scale, logdet, mel_lengths, o_dur_log, o_total_dur, text_lengths) # backward pass with loss scaling if c.mixed_precision: scaler.scale(loss_dict['loss']).backward() scaler.unscale_(optimizer) grad_norm = torch.nn.utils.clip_grad_norm_(model.parameters(), c.grad_clip) scaler.step(optimizer) scaler.update() else: loss_dict['loss'].backward() grad_norm = torch.nn.utils.clip_grad_norm_(model.parameters(), c.grad_clip) optimizer.step() # setup lr if c.noam_schedule: scheduler.step() # current_lr current_lr = optimizer.param_groups[0]['lr'] # compute alignment error (the lower the better ) align_error = 1 - alignment_diagonal_score(alignments, binary=True) loss_dict['align_error'] = align_error step_time = time.time() - start_time epoch_time += step_time # aggregate losses from processes if num_gpus > 1: loss_dict['log_mle'] = reduce_tensor(loss_dict['log_mle'].data, num_gpus) loss_dict['loss_dur'] = reduce_tensor(loss_dict['loss_dur'].data, num_gpus) loss_dict['loss'] = reduce_tensor(loss_dict['loss'].data, num_gpus) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values['avg_' + key] = value update_train_values['avg_loader_time'] = loader_time update_train_values['avg_step_time'] = step_time keep_avg.update_values(update_train_values) # print training progress if global_step % c.print_step == 0: log_dict = { "avg_spec_length": [avg_spec_length, 1], # value, precision "avg_text_length": [avg_text_length, 1], "step_time": [step_time, 4], "loader_time": [loader_time, 2], "current_lr": current_lr, } c_logger.print_train_step(batch_n_iter, num_iter, global_step, log_dict, loss_dict, keep_avg.avg_values) if args.rank == 0: # Plot Training Iter Stats # reduce TB load if global_step % c.tb_plot_step == 0: iter_stats = { "lr": current_lr, "grad_norm": grad_norm, "step_time": step_time } iter_stats.update(loss_dict) tb_logger.tb_train_iter_stats(global_step, iter_stats) if global_step % c.save_step == 0: if c.checkpoint: # save model save_checkpoint(model, optimizer, global_step, epoch, 1, OUT_PATH, model_characters, model_loss=loss_dict['loss']) # wait all kernels to be completed torch.cuda.synchronize() # Diagnostic visualizations # direct pass on model for spec predictions target_speaker = None if speaker_c is None else speaker_c[:1] if hasattr(model, 'module'): spec_pred, *_ = model.module.inference(text_input[:1], text_lengths[:1], g=target_speaker) else: spec_pred, *_ = model.inference(text_input[:1], text_lengths[:1], g=target_speaker) spec_pred = spec_pred.permute(0, 2, 1) gt_spec = mel_input.permute(0, 2, 1) const_spec = spec_pred[0].data.cpu().numpy() gt_spec = gt_spec[0].data.cpu().numpy() align_img = alignments[0].data.cpu().numpy() figures = { "prediction": plot_spectrogram(const_spec, ap), "ground_truth": plot_spectrogram(gt_spec, ap), "alignment": plot_alignment(align_img), } tb_logger.tb_train_figures(global_step, figures) # Sample audio train_audio = ap.inv_melspectrogram(const_spec.T) tb_logger.tb_train_audios(global_step, {'TrainAudio': train_audio}, c.audio["sample_rate"]) end_time = time.time() # print epoch stats c_logger.print_train_epoch_end(global_step, epoch, epoch_time, keep_avg) # Plot Epoch Stats if args.rank == 0: epoch_stats = {"epoch_time": epoch_time} epoch_stats.update(keep_avg.avg_values) tb_logger.tb_train_epoch_stats(global_step, epoch_stats) if c.tb_model_param_stats: tb_logger.tb_model_weights(model, global_step) return keep_avg.avg_values, global_step
def evaluate(data_loader, model, criterion, ap, global_step, epoch): model.eval() epoch_time = 0 keep_avg = KeepAverage() c_logger.print_eval_start() if data_loader is not None: for num_iter, data in enumerate(data_loader): start_time = time.time() # format data text_input, text_lengths, mel_input, mel_lengths, speaker_c,\ _, _, attn_mask, _ = format_data(data) # forward pass model z, logdet, y_mean, y_log_scale, alignments, o_dur_log, o_total_dur = model.forward( text_input, text_lengths, mel_input, mel_lengths, attn_mask, g=speaker_c) # compute loss loss_dict = criterion(z, y_mean, y_log_scale, logdet, mel_lengths, o_dur_log, o_total_dur, text_lengths) # step time step_time = time.time() - start_time epoch_time += step_time # compute alignment score align_error = 1 - alignment_diagonal_score(alignments) loss_dict['align_error'] = align_error # aggregate losses from processes if num_gpus > 1: loss_dict['log_mle'] = reduce_tensor(loss_dict['log_mle'].data, num_gpus) loss_dict['loss_dur'] = reduce_tensor( loss_dict['loss_dur'].data, num_gpus) loss_dict['loss'] = reduce_tensor(loss_dict['loss'].data, num_gpus) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values['avg_' + key] = value keep_avg.update_values(update_train_values) if c.print_eval: c_logger.print_eval_step(num_iter, loss_dict, keep_avg.avg_values) if args.rank == 0: # Diagnostic visualizations # direct pass on model for spec predictions target_speaker = None if speaker_c is None else speaker_c[:1] if hasattr(model, 'module'): spec_pred, *_ = model.module.inference(text_input[:1], text_lengths[:1], g=target_speaker) else: spec_pred, *_ = model.inference(text_input[:1], text_lengths[:1], g=target_speaker) spec_pred = spec_pred.permute(0, 2, 1) gt_spec = mel_input.permute(0, 2, 1) const_spec = spec_pred[0].data.cpu().numpy() gt_spec = gt_spec[0].data.cpu().numpy() align_img = alignments[0].data.cpu().numpy() eval_figures = { "prediction": plot_spectrogram(const_spec, ap), "ground_truth": plot_spectrogram(gt_spec, ap), "alignment": plot_alignment(align_img) } # Sample audio eval_audio = ap.inv_melspectrogram(const_spec.T) tb_logger.tb_eval_audios(global_step, {"ValAudio": eval_audio}, c.audio["sample_rate"]) # Plot Validation Stats tb_logger.tb_eval_stats(global_step, keep_avg.avg_values) tb_logger.tb_eval_figures(global_step, eval_figures) if args.rank == 0 and epoch >= c.test_delay_epochs: if c.test_sentences_file is None: test_sentences = [ "It took me quite a long time to develop a voice, and now that I have it I'm not going to be silent.", "Be a voice, not an echo.", "I'm sorry Dave. I'm afraid I can't do that.", "This cake is great. It's so delicious and moist.", "Prior to November 22, 1963." ] else: with open(c.test_sentences_file, "r") as f: test_sentences = [s.strip() for s in f.readlines()] # test sentences test_audios = {} test_figures = {} print(" | > Synthesizing test sentences") if c.use_speaker_embedding: if c.use_external_speaker_embedding_file: speaker_embedding = speaker_mapping[list( speaker_mapping.keys())[randrange( len(speaker_mapping) - 1)]]['embedding'] speaker_id = None else: speaker_id = 0 speaker_embedding = None else: speaker_id = None speaker_embedding = None style_wav = c.get("style_wav_for_test") for idx, test_sentence in enumerate(test_sentences): try: wav, alignment, _, postnet_output, _, _ = synthesis( model, test_sentence, c, use_cuda, ap, speaker_id=speaker_id, speaker_embedding=speaker_embedding, style_wav=style_wav, truncated=False, enable_eos_bos_chars=c.enable_eos_bos_chars, #pylint: disable=unused-argument use_griffin_lim=True, do_trim_silence=False) file_path = os.path.join(AUDIO_PATH, str(global_step)) os.makedirs(file_path, exist_ok=True) file_path = os.path.join(file_path, "TestSentence_{}.wav".format(idx)) ap.save_wav(wav, file_path) test_audios['{}-audio'.format(idx)] = wav test_figures['{}-prediction'.format(idx)] = plot_spectrogram( postnet_output, ap) test_figures['{}-alignment'.format(idx)] = plot_alignment( alignment) except: #pylint: disable=bare-except print(" !! Error creating Test Sentence -", idx) traceback.print_exc() tb_logger.tb_test_audios(global_step, test_audios, c.audio['sample_rate']) tb_logger.tb_test_figures(global_step, test_figures) return keep_avg.avg_values
def evaluate(data_loader, model, criterion, ap, global_step, epoch): model.eval() epoch_time = 0 keep_avg = KeepAverage() c_logger.print_eval_start() if data_loader is not None: for num_iter, data in enumerate(data_loader): start_time = time.time() # format data ( text_input, text_lengths, mel_input, mel_lengths, linear_input, stop_targets, speaker_ids, speaker_embeddings, _, _, ) = format_data(data) assert mel_input.shape[1] % model.decoder.r == 0 # forward pass model if c.bidirectional_decoder or c.double_decoder_consistency: ( decoder_output, postnet_output, alignments, stop_tokens, decoder_backward_output, alignments_backward, ) = model(text_input, text_lengths, mel_input, speaker_ids=speaker_ids, speaker_embeddings=speaker_embeddings) else: decoder_output, postnet_output, alignments, stop_tokens = model( text_input, text_lengths, mel_input, speaker_ids=speaker_ids, speaker_embeddings=speaker_embeddings) decoder_backward_output = None alignments_backward = None # set the alignment lengths wrt reduction factor for guided attention if mel_lengths.max() % model.decoder.r != 0: alignment_lengths = ( mel_lengths + (model.decoder.r - (mel_lengths.max() % model.decoder.r))) // model.decoder.r else: alignment_lengths = mel_lengths // model.decoder.r # compute loss loss_dict = criterion( postnet_output, decoder_output, mel_input, linear_input, stop_tokens, stop_targets, mel_lengths, decoder_backward_output, alignments, alignment_lengths, alignments_backward, text_lengths, ) # step time step_time = time.time() - start_time epoch_time += step_time # compute alignment score align_error = 1 - alignment_diagonal_score(alignments) loss_dict["align_error"] = align_error # aggregate losses from processes if num_gpus > 1: loss_dict["postnet_loss"] = reduce_tensor( loss_dict["postnet_loss"].data, num_gpus) loss_dict["decoder_loss"] = reduce_tensor( loss_dict["decoder_loss"].data, num_gpus) if c.stopnet: loss_dict["stopnet_loss"] = reduce_tensor( loss_dict["stopnet_loss"].data, num_gpus) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values["avg_" + key] = value keep_avg.update_values(update_train_values) if c.print_eval: c_logger.print_eval_step(num_iter, loss_dict, keep_avg.avg_values) if args.rank == 0: # Diagnostic visualizations idx = np.random.randint(mel_input.shape[0]) const_spec = postnet_output[idx].data.cpu().numpy() gt_spec = (linear_input[idx].data.cpu().numpy() if c.model in [ "Tacotron", "TacotronGST" ] else mel_input[idx].data.cpu().numpy()) align_img = alignments[idx].data.cpu().numpy() eval_figures = { "prediction": plot_spectrogram(const_spec, ap, output_fig=False), "ground_truth": plot_spectrogram(gt_spec, ap, output_fig=False), "alignment": plot_alignment(align_img, output_fig=False), } # Sample audio if c.model in ["Tacotron", "TacotronGST"]: eval_audio = ap.inv_spectrogram(const_spec.T) else: eval_audio = ap.inv_melspectrogram(const_spec.T) tb_logger.tb_eval_audios(global_step, {"ValAudio": eval_audio}, c.audio["sample_rate"]) # Plot Validation Stats if c.bidirectional_decoder or c.double_decoder_consistency: align_b_img = alignments_backward[idx].data.cpu().numpy() eval_figures["alignment2"] = plot_alignment(align_b_img, output_fig=False) tb_logger.tb_eval_stats(global_step, keep_avg.avg_values) tb_logger.tb_eval_figures(global_step, eval_figures) if args.rank == 0 and epoch > c.test_delay_epochs: if c.test_sentences_file is None: test_sentences = [ "It took me quite a long time to develop a voice, and now that I have it I'm not going to be silent.", "Be a voice, not an echo.", "I'm sorry Dave. I'm afraid I can't do that.", "This cake is great. It's so delicious and moist.", "Prior to November 22, 1963.", ] else: with open(c.test_sentences_file, "r") as f: test_sentences = [s.strip() for s in f.readlines()] # test sentences test_audios = {} test_figures = {} print(" | > Synthesizing test sentences") speaker_id = 0 if c.use_speaker_embedding else None speaker_embedding = (speaker_mapping[list( speaker_mapping.keys())[randrange(len(speaker_mapping) - 1)]]["embedding"] if c.use_external_speaker_embedding_file and c.use_speaker_embedding else None) style_wav = c.get("gst_style_input") if style_wav is None and c.use_gst: # inicialize GST with zero dict. style_wav = {} print( "WARNING: You don't provided a gst style wav, for this reason we use a zero tensor!" ) for i in range(c.gst["gst_style_tokens"]): style_wav[str(i)] = 0 style_wav = c.get("gst_style_input") for idx, test_sentence in enumerate(test_sentences): try: wav, alignment, decoder_output, postnet_output, stop_tokens, _ = synthesis( model, test_sentence, c, use_cuda, ap, speaker_id=speaker_id, speaker_embedding=speaker_embedding, style_wav=style_wav, truncated=False, enable_eos_bos_chars=c.enable_eos_bos_chars, # pylint: disable=unused-argument use_griffin_lim=True, do_trim_silence=False, ) file_path = os.path.join(AUDIO_PATH, str(global_step)) os.makedirs(file_path, exist_ok=True) file_path = os.path.join(file_path, "TestSentence_{}.wav".format(idx)) ap.save_wav(wav, file_path) test_audios["{}-audio".format(idx)] = wav test_figures["{}-prediction".format(idx)] = plot_spectrogram( postnet_output, ap, output_fig=False) test_figures["{}-alignment".format(idx)] = plot_alignment( alignment, output_fig=False) except: # pylint: disable=bare-except print(" !! Error creating Test Sentence -", idx) traceback.print_exc() tb_logger.tb_test_audios(global_step, test_audios, c.audio["sample_rate"]) tb_logger.tb_test_figures(global_step, test_figures) return keep_avg.avg_values
def train(data_loader, model, criterion, optimizer, optimizer_st, scheduler, ap, global_step, epoch, scaler, scaler_st): model.train() epoch_time = 0 keep_avg = KeepAverage() if use_cuda: batch_n_iter = int( len(data_loader.dataset) / (c.batch_size * num_gpus)) else: batch_n_iter = int(len(data_loader.dataset) / c.batch_size) end_time = time.time() c_logger.print_train_start() for num_iter, data in enumerate(data_loader): start_time = time.time() # format data ( text_input, text_lengths, mel_input, mel_lengths, linear_input, stop_targets, speaker_ids, speaker_embeddings, max_text_length, max_spec_length, ) = format_data(data) loader_time = time.time() - end_time global_step += 1 # setup lr if c.noam_schedule: scheduler.step() optimizer.zero_grad() if optimizer_st: optimizer_st.zero_grad() with torch.cuda.amp.autocast(enabled=c.mixed_precision): # forward pass model if c.bidirectional_decoder or c.double_decoder_consistency: ( decoder_output, postnet_output, alignments, stop_tokens, decoder_backward_output, alignments_backward, ) = model( text_input, text_lengths, mel_input, mel_lengths, speaker_ids=speaker_ids, speaker_embeddings=speaker_embeddings, ) else: decoder_output, postnet_output, alignments, stop_tokens = model( text_input, text_lengths, mel_input, mel_lengths, speaker_ids=speaker_ids, speaker_embeddings=speaker_embeddings, ) decoder_backward_output = None alignments_backward = None # set the [alignment] lengths wrt reduction factor for guided attention if mel_lengths.max() % model.decoder.r != 0: alignment_lengths = ( mel_lengths + (model.decoder.r - (mel_lengths.max() % model.decoder.r))) // model.decoder.r else: alignment_lengths = mel_lengths // model.decoder.r # compute loss loss_dict = criterion( postnet_output, decoder_output, mel_input, linear_input, stop_tokens, stop_targets, mel_lengths, decoder_backward_output, alignments, alignment_lengths, alignments_backward, text_lengths, ) # check nan loss if torch.isnan(loss_dict["loss"]).any(): raise RuntimeError(f"Detected NaN loss at step {global_step}.") # optimizer step if c.mixed_precision: # model optimizer step in mixed precision mode scaler.scale(loss_dict["loss"]).backward() scaler.unscale_(optimizer) optimizer, current_lr = adam_weight_decay(optimizer) grad_norm, _ = check_update(model, c.grad_clip, ignore_stopnet=True) scaler.step(optimizer) scaler.update() # stopnet optimizer step if c.separate_stopnet: scaler_st.scale(loss_dict["stopnet_loss"]).backward() scaler.unscale_(optimizer_st) optimizer_st, _ = adam_weight_decay(optimizer_st) grad_norm_st, _ = check_update(model.decoder.stopnet, 1.0) scaler_st.step(optimizer) scaler_st.update() else: grad_norm_st = 0 else: # main model optimizer step loss_dict["loss"].backward() optimizer, current_lr = adam_weight_decay(optimizer) grad_norm, _ = check_update(model, c.grad_clip, ignore_stopnet=True) optimizer.step() # stopnet optimizer step if c.separate_stopnet: loss_dict["stopnet_loss"].backward() optimizer_st, _ = adam_weight_decay(optimizer_st) grad_norm_st, _ = check_update(model.decoder.stopnet, 1.0) optimizer_st.step() else: grad_norm_st = 0 # compute alignment error (the lower the better ) align_error = 1 - alignment_diagonal_score(alignments) loss_dict["align_error"] = align_error step_time = time.time() - start_time epoch_time += step_time # aggregate losses from processes if num_gpus > 1: loss_dict["postnet_loss"] = reduce_tensor( loss_dict["postnet_loss"].data, num_gpus) loss_dict["decoder_loss"] = reduce_tensor( loss_dict["decoder_loss"].data, num_gpus) loss_dict["loss"] = reduce_tensor(loss_dict["loss"].data, num_gpus) loss_dict["stopnet_loss"] = (reduce_tensor( loss_dict["stopnet_loss"].data, num_gpus) if c.stopnet else loss_dict["stopnet_loss"]) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values["avg_" + key] = value update_train_values["avg_loader_time"] = loader_time update_train_values["avg_step_time"] = step_time keep_avg.update_values(update_train_values) # print training progress if global_step % c.print_step == 0: log_dict = { "max_spec_length": [max_spec_length, 1], # value, precision "max_text_length": [max_text_length, 1], "step_time": [step_time, 4], "loader_time": [loader_time, 2], "current_lr": current_lr, } c_logger.print_train_step(batch_n_iter, num_iter, global_step, log_dict, loss_dict, keep_avg.avg_values) if args.rank == 0: # Plot Training Iter Stats # reduce TB load if global_step % c.tb_plot_step == 0: iter_stats = { "lr": current_lr, "grad_norm": grad_norm, "grad_norm_st": grad_norm_st, "step_time": step_time, } iter_stats.update(loss_dict) tb_logger.tb_train_iter_stats(global_step, iter_stats) if global_step % c.save_step == 0: if c.checkpoint: # save model save_checkpoint( model, optimizer, global_step, epoch, model.decoder.r, OUT_PATH, optimizer_st=optimizer_st, model_loss=loss_dict["postnet_loss"], characters=model_characters, scaler=scaler.state_dict() if c.mixed_precision else None, ) # Diagnostic visualizations const_spec = postnet_output[0].data.cpu().numpy() gt_spec = (linear_input[0].data.cpu().numpy() if c.model in [ "Tacotron", "TacotronGST" ] else mel_input[0].data.cpu().numpy()) align_img = alignments[0].data.cpu().numpy() figures = { "prediction": plot_spectrogram(const_spec, ap, output_fig=False), "ground_truth": plot_spectrogram(gt_spec, ap, output_fig=False), "alignment": plot_alignment(align_img, output_fig=False), } if c.bidirectional_decoder or c.double_decoder_consistency: figures["alignment_backward"] = plot_alignment( alignments_backward[0].data.cpu().numpy(), output_fig=False) tb_logger.tb_train_figures(global_step, figures) # Sample audio if c.model in ["Tacotron", "TacotronGST"]: train_audio = ap.inv_spectrogram(const_spec.T) else: train_audio = ap.inv_melspectrogram(const_spec.T) tb_logger.tb_train_audios(global_step, {"TrainAudio": train_audio}, c.audio["sample_rate"]) end_time = time.time() # print epoch stats c_logger.print_train_epoch_end(global_step, epoch, epoch_time, keep_avg) # Plot Epoch Stats if args.rank == 0: epoch_stats = {"epoch_time": epoch_time} epoch_stats.update(keep_avg.avg_values) tb_logger.tb_train_epoch_stats(global_step, epoch_stats) if c.tb_model_param_stats: tb_logger.tb_model_weights(model, global_step) return keep_avg.avg_values, global_step
def evaluate(data_loader, model, criterion, ap, global_step, epoch): model.eval() epoch_time = 0 keep_avg = KeepAverage() c_logger.print_eval_start() if data_loader is not None: for num_iter, data in enumerate(data_loader): start_time = time.time() # format data text_input, text_lengths, mel_targets, mel_lengths, speaker_c,\ _, _, _, dur_target, _ = format_data(data) # forward pass model with torch.cuda.amp.autocast(enabled=c.mixed_precision): decoder_output, dur_output, alignments = model.forward( text_input, text_lengths, mel_lengths, dur_target, g=speaker_c) # compute loss loss_dict = criterion(decoder_output, mel_targets, mel_lengths, dur_output, torch.log(1 + dur_target), text_lengths) # step time step_time = time.time() - start_time epoch_time += step_time # compute alignment score align_error = 1 - alignment_diagonal_score(alignments, binary=True) loss_dict['align_error'] = align_error # aggregate losses from processes if num_gpus > 1: loss_dict['loss_l1'] = reduce_tensor(loss_dict['loss_l1'].data, num_gpus) loss_dict['loss_ssim'] = reduce_tensor( loss_dict['loss_ssim'].data, num_gpus) loss_dict['loss_dur'] = reduce_tensor( loss_dict['loss_dur'].data, num_gpus) loss_dict['loss'] = reduce_tensor(loss_dict['loss'].data, num_gpus) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values['avg_' + key] = value keep_avg.update_values(update_train_values) if c.print_eval: c_logger.print_eval_step(num_iter, loss_dict, keep_avg.avg_values) if args.rank == 0: # Diagnostic visualizations idx = np.random.randint(mel_targets.shape[0]) pred_spec = decoder_output[idx].detach().data.cpu().numpy().T gt_spec = mel_targets[idx].data.cpu().numpy().T align_img = alignments[idx].data.cpu() eval_figures = { "prediction": plot_spectrogram(pred_spec, ap, output_fig=False), "ground_truth": plot_spectrogram(gt_spec, ap, output_fig=False), "alignment": plot_alignment(align_img, output_fig=False) } # Sample audio eval_audio = ap.inv_melspectrogram(pred_spec.T) tb_logger.tb_eval_audios(global_step, {"ValAudio": eval_audio}, c.audio["sample_rate"]) # Plot Validation Stats tb_logger.tb_eval_stats(global_step, keep_avg.avg_values) tb_logger.tb_eval_figures(global_step, eval_figures) if args.rank == 0 and epoch >= c.test_delay_epochs and epoch % c.test_every_epochs == 0: if c.test_sentences_file is None: test_sentences = [ "ජනක ප්රදීප් ලියනගේ.", "රගර් ගැහුවා කියල කොහොමද බූරුවො වොලි බෝල් නැති වෙන්නෙ.", "රට්ඨපාල කුමරු ගිහිගෙය හැර පැවිදි වී සිටියි.", "අජාසත් රජතුමාගේ ඇත් සේනාවේ අති භයානක ඇතෙක් සිටියා." ] else: with open(c.test_sentences_file, "r") as f: test_sentences = [s.strip() for s in f.readlines()] # test sentences test_audios = {} test_figures = {} print(" | > Synthesizing test sentences") if c.use_speaker_embedding: if c.use_external_speaker_embedding_file: speaker_embedding = speaker_mapping[list( speaker_mapping.keys())[randrange( len(speaker_mapping) - 1)]]['embedding'] speaker_id = None else: speaker_id = 0 speaker_embedding = None else: speaker_id = None speaker_embedding = None style_wav = c.get("style_wav_for_test") for idx, test_sentence in enumerate(test_sentences): try: wav, alignment, _, postnet_output, _, _ = synthesis( model, test_sentence, c, use_cuda, ap, speaker_id=speaker_id, speaker_embedding=speaker_embedding, style_wav=style_wav, truncated=False, enable_eos_bos_chars=c.enable_eos_bos_chars, #pylint: disable=unused-argument use_griffin_lim=True, do_trim_silence=False) file_path = os.path.join(AUDIO_PATH, str(global_step)) os.makedirs(file_path, exist_ok=True) file_path = os.path.join(file_path, "TestSentence_{}.wav".format(idx)) ap.save_wav(wav, file_path) test_audios['{}-audio'.format(idx)] = wav test_figures['{}-prediction'.format(idx)] = plot_spectrogram( postnet_output, ap) test_figures['{}-alignment'.format(idx)] = plot_alignment( alignment) except: #pylint: disable=bare-except print(" !! Error creating Test Sentence -", idx) traceback.print_exc() tb_logger.tb_test_audios(global_step, test_audios, c.audio['sample_rate']) tb_logger.tb_test_figures(global_step, test_figures) return keep_avg.avg_values
def evaluate(data_loader, model, criterion, ap, global_step, epoch): model.eval() epoch_time = 0 keep_avg = KeepAverage() c_logger.print_eval_start() if data_loader is not None: for num_iter, data in enumerate(data_loader): start_time = time.time() # format data text_input, text_lengths, mel_targets, mel_lengths, speaker_c, _, _, _, dur_target, _ = format_data(data) # forward pass model with torch.cuda.amp.autocast(enabled=c.mixed_precision): decoder_output, dur_output, alignments = model.forward( text_input, text_lengths, mel_lengths, dur_target, g=speaker_c ) # compute loss loss_dict = criterion( decoder_output, mel_targets, mel_lengths, dur_output, torch.log(1 + dur_target), text_lengths ) # step time step_time = time.time() - start_time epoch_time += step_time # compute alignment score align_error = 1 - alignment_diagonal_score(alignments, binary=True) loss_dict["align_error"] = align_error # aggregate losses from processes if num_gpus > 1: loss_dict["loss_l1"] = reduce_tensor(loss_dict["loss_l1"].data, num_gpus) loss_dict["loss_ssim"] = reduce_tensor(loss_dict["loss_ssim"].data, num_gpus) loss_dict["loss_dur"] = reduce_tensor(loss_dict["loss_dur"].data, num_gpus) loss_dict["loss"] = reduce_tensor(loss_dict["loss"].data, num_gpus) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values["avg_" + key] = value keep_avg.update_values(update_train_values) if c.print_eval: c_logger.print_eval_step(num_iter, loss_dict, keep_avg.avg_values) if args.rank == 0: # Diagnostic visualizations idx = np.random.randint(mel_targets.shape[0]) pred_spec = decoder_output[idx].detach().data.cpu().numpy().T gt_spec = mel_targets[idx].data.cpu().numpy().T align_img = alignments[idx].data.cpu() eval_figures = { "prediction": plot_spectrogram(pred_spec, ap, output_fig=False), "ground_truth": plot_spectrogram(gt_spec, ap, output_fig=False), "alignment": plot_alignment(align_img, output_fig=False), } # Sample audio eval_audio = ap.inv_melspectrogram(pred_spec.T) tb_logger.tb_eval_audios(global_step, {"ValAudio": eval_audio}, c.audio["sample_rate"]) # Plot Validation Stats tb_logger.tb_eval_stats(global_step, keep_avg.avg_values) tb_logger.tb_eval_figures(global_step, eval_figures) if args.rank == 0 and epoch >= c.test_delay_epochs: if c.test_sentences_file is None: test_sentences = [ "It took me quite a long time to develop a voice, and now that I have it I'm not going to be silent.", "Be a voice, not an echo.", "I'm sorry Dave. I'm afraid I can't do that.", "This cake is great. It's so delicious and moist.", "Prior to November 22, 1963.", ] else: with open(c.test_sentences_file, "r") as f: test_sentences = [s.strip() for s in f.readlines()] # test sentences test_audios = {} test_figures = {} print(" | > Synthesizing test sentences") if c.use_speaker_embedding: if c.use_external_speaker_embedding_file: speaker_embedding = speaker_mapping[list(speaker_mapping.keys())[randrange(len(speaker_mapping) - 1)]][ "embedding" ] speaker_id = None else: speaker_id = 0 speaker_embedding = None else: speaker_id = None speaker_embedding = None style_wav = c.get("style_wav_for_test") for idx, test_sentence in enumerate(test_sentences): try: wav, alignment, _, postnet_output, _, _ = synthesis( model, test_sentence, c, use_cuda, ap, speaker_id=speaker_id, speaker_embedding=speaker_embedding, style_wav=style_wav, truncated=False, enable_eos_bos_chars=c.enable_eos_bos_chars, # pylint: disable=unused-argument use_griffin_lim=True, do_trim_silence=False, ) file_path = os.path.join(AUDIO_PATH, str(global_step)) os.makedirs(file_path, exist_ok=True) file_path = os.path.join(file_path, "TestSentence_{}.wav".format(idx)) ap.save_wav(wav, file_path) test_audios["{}-audio".format(idx)] = wav test_figures["{}-prediction".format(idx)] = plot_spectrogram(postnet_output, ap) test_figures["{}-alignment".format(idx)] = plot_alignment(alignment) except: # pylint: disable=bare-except print(" !! Error creating Test Sentence -", idx) traceback.print_exc() tb_logger.tb_test_audios(global_step, test_audios, c.audio["sample_rate"]) tb_logger.tb_test_figures(global_step, test_figures) return keep_avg.avg_values
def train(data_loader, model, criterion, optimizer, scheduler, ap, global_step, epoch): model.train() epoch_time = 0 keep_avg = KeepAverage() if use_cuda: batch_n_iter = int( len(data_loader.dataset) / (config.batch_size * num_gpus)) else: batch_n_iter = int(len(data_loader.dataset) / config.batch_size) end_time = time.time() c_logger.print_train_start() scaler = torch.cuda.amp.GradScaler() if config.mixed_precision else None for num_iter, data in enumerate(data_loader): start_time = time.time() # format data ( text_input, text_lengths, mel_targets, mel_lengths, speaker_c, avg_text_length, avg_spec_length, _, dur_target, _, ) = format_data(data) loader_time = time.time() - end_time global_step += 1 optimizer.zero_grad() # forward pass model with torch.cuda.amp.autocast(enabled=config.mixed_precision): decoder_output, dur_output, alignments = model.forward( text_input, text_lengths, mel_lengths, dur_target, g=speaker_c) # compute loss loss_dict = criterion(decoder_output, mel_targets, mel_lengths, dur_output, torch.log(1 + dur_target), text_lengths) # backward pass with loss scaling if config.mixed_precision: scaler.scale(loss_dict["loss"]).backward() scaler.unscale_(optimizer) grad_norm = torch.nn.utils.clip_grad_norm_(model.parameters(), config.grad_clip) scaler.step(optimizer) scaler.update() else: loss_dict["loss"].backward() grad_norm = torch.nn.utils.clip_grad_norm_(model.parameters(), config.grad_clip) optimizer.step() # setup lr if config.noam_schedule: scheduler.step() # current_lr current_lr = optimizer.param_groups[0]["lr"] # compute alignment error (the lower the better ) align_error = 1 - alignment_diagonal_score(alignments, binary=True) loss_dict["align_error"] = align_error step_time = time.time() - start_time epoch_time += step_time # aggregate losses from processes if num_gpus > 1: loss_dict["loss_l1"] = reduce_tensor(loss_dict["loss_l1"].data, num_gpus) loss_dict["loss_ssim"] = reduce_tensor(loss_dict["loss_ssim"].data, num_gpus) loss_dict["loss_dur"] = reduce_tensor(loss_dict["loss_dur"].data, num_gpus) loss_dict["loss"] = reduce_tensor(loss_dict["loss"].data, num_gpus) # detach loss values loss_dict_new = dict() for key, value in loss_dict.items(): if isinstance(value, (int, float)): loss_dict_new[key] = value else: loss_dict_new[key] = value.item() loss_dict = loss_dict_new # update avg stats update_train_values = dict() for key, value in loss_dict.items(): update_train_values["avg_" + key] = value update_train_values["avg_loader_time"] = loader_time update_train_values["avg_step_time"] = step_time keep_avg.update_values(update_train_values) # print training progress if global_step % config.print_step == 0: log_dict = { "avg_spec_length": [avg_spec_length, 1], # value, precision "avg_text_length": [avg_text_length, 1], "step_time": [step_time, 4], "loader_time": [loader_time, 2], "current_lr": current_lr, } c_logger.print_train_step(batch_n_iter, num_iter, global_step, log_dict, loss_dict, keep_avg.avg_values) if args.rank == 0: # Plot Training Iter Stats # reduce TB load if global_step % config.tb_plot_step == 0: iter_stats = { "lr": current_lr, "grad_norm": grad_norm, "step_time": step_time } iter_stats.update(loss_dict) tb_logger.tb_train_iter_stats(global_step, iter_stats) if global_step % config.save_step == 0: if config.checkpoint: # save model save_checkpoint( model, optimizer, global_step, epoch, 1, OUT_PATH, model_characters, model_loss=loss_dict["loss"], ) # wait all kernels to be completed torch.cuda.synchronize() # Diagnostic visualizations idx = np.random.randint(mel_targets.shape[0]) pred_spec = decoder_output[idx].detach().data.cpu().numpy().T gt_spec = mel_targets[idx].data.cpu().numpy().T align_img = alignments[idx].data.cpu() figures = { "prediction": plot_spectrogram(pred_spec, ap), "ground_truth": plot_spectrogram(gt_spec, ap), "alignment": plot_alignment(align_img), } tb_logger.tb_train_figures(global_step, figures) # Sample audio train_audio = ap.inv_melspectrogram(pred_spec.T) tb_logger.tb_train_audios(global_step, {"TrainAudio": train_audio}, config.audio["sample_rate"]) end_time = time.time() # print epoch stats c_logger.print_train_epoch_end(global_step, epoch, epoch_time, keep_avg) # Plot Epoch Stats if args.rank == 0: epoch_stats = {"epoch_time": epoch_time} epoch_stats.update(keep_avg.avg_values) tb_logger.tb_train_epoch_stats(global_step, epoch_stats) if config.tb_model_param_stats: tb_logger.tb_model_weights(model, global_step) return keep_avg.avg_values, global_step