202 lines
7.2 KiB
Python
202 lines
7.2 KiB
Python
# Copyright (c) 2020 PaddlePaddle Authors. All Rights Reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import division
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import os
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import ruamel.yaml
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import argparse
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import tqdm
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from visualdl import LogWriter
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from paddle import fluid
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fluid.require_version('1.8.0')
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import paddle.fluid.dygraph as dg
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from parakeet.data import SliceDataset, TransformDataset, CacheDataset, DataCargo, SequentialSampler, RandomSampler
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from parakeet.models.wavenet import UpsampleNet, WaveNet, ConditionalWavenet
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from parakeet.utils.layer_tools import summary
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from parakeet.utils import io
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from data import LJSpeechMetaData, Transform, DataCollector
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from utils import make_output_tree, valid_model
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if __name__ == "__main__":
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parser = argparse.ArgumentParser(
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description="Train a WaveNet model with LJSpeech.")
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parser.add_argument(
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"--data", type=str, help="path of the LJspeech dataset")
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parser.add_argument("--config", type=str, help="path of the config file")
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parser.add_argument("--device", type=int, default=-1, help="device to use")
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g = parser.add_mutually_exclusive_group()
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g.add_argument("--checkpoint", type=str, help="checkpoint to resume from")
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g.add_argument(
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"--iteration",
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type=int,
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help="the iteration of the checkpoint to load from output directory")
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parser.add_argument(
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"output", type=str, default="experiment", help="path to save results")
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args = parser.parse_args()
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with open(args.config, 'rt') as f:
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config = ruamel.yaml.safe_load(f)
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if args.device == -1:
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place = fluid.CPUPlace()
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else:
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place = fluid.CUDAPlace(args.device)
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dg.enable_dygraph(place)
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print("Command Line Args: ")
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for k, v in vars(args).items():
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print("{}: {}".format(k, v))
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ljspeech_meta = LJSpeechMetaData(args.data)
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data_config = config["data"]
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sample_rate = data_config["sample_rate"]
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n_fft = data_config["n_fft"]
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win_length = data_config["win_length"]
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hop_length = data_config["hop_length"]
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n_mels = data_config["n_mels"]
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train_clip_seconds = data_config["train_clip_seconds"]
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transform = Transform(sample_rate, n_fft, win_length, hop_length, n_mels)
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ljspeech = TransformDataset(ljspeech_meta, transform)
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valid_size = data_config["valid_size"]
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ljspeech_valid = CacheDataset(SliceDataset(ljspeech, 0, valid_size))
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ljspeech_train = CacheDataset(
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SliceDataset(ljspeech, valid_size, len(ljspeech)))
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model_config = config["model"]
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n_loop = model_config["n_loop"]
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n_layer = model_config["n_layer"]
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filter_size = model_config["filter_size"]
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context_size = 1 + n_layer * sum([filter_size**i for i in range(n_loop)])
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print("context size is {} samples".format(context_size))
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train_batch_fn = DataCollector(context_size, sample_rate, hop_length,
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train_clip_seconds)
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valid_batch_fn = DataCollector(
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context_size, sample_rate, hop_length, train_clip_seconds, valid=True)
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batch_size = data_config["batch_size"]
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train_cargo = DataCargo(
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ljspeech_train,
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train_batch_fn,
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batch_size,
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sampler=RandomSampler(ljspeech_train))
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# only batch=1 for validation is enabled
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valid_cargo = DataCargo(
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ljspeech_valid,
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valid_batch_fn,
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batch_size=1,
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sampler=SequentialSampler(ljspeech_valid))
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make_output_tree(args.output)
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if args.device == -1:
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place = fluid.CPUPlace()
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else:
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place = fluid.CUDAPlace(args.device)
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model_config = config["model"]
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upsampling_factors = model_config["upsampling_factors"]
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encoder = UpsampleNet(upsampling_factors)
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n_loop = model_config["n_loop"]
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n_layer = model_config["n_layer"]
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residual_channels = model_config["residual_channels"]
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output_dim = model_config["output_dim"]
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loss_type = model_config["loss_type"]
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log_scale_min = model_config["log_scale_min"]
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decoder = WaveNet(n_loop, n_layer, residual_channels, output_dim, n_mels,
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filter_size, loss_type, log_scale_min)
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model = ConditionalWavenet(encoder, decoder)
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summary(model)
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train_config = config["train"]
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learning_rate = train_config["learning_rate"]
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anneal_rate = train_config["anneal_rate"]
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anneal_interval = train_config["anneal_interval"]
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lr_scheduler = dg.ExponentialDecay(
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learning_rate, anneal_interval, anneal_rate, staircase=True)
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gradiant_max_norm = train_config["gradient_max_norm"]
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optim = fluid.optimizer.Adam(
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lr_scheduler,
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parameter_list=model.parameters(),
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grad_clip=fluid.clip.ClipByGlobalNorm(gradiant_max_norm))
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train_loader = fluid.io.DataLoader.from_generator(
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capacity=10, return_list=True)
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train_loader.set_batch_generator(train_cargo, place)
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valid_loader = fluid.io.DataLoader.from_generator(
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capacity=10, return_list=True)
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valid_loader.set_batch_generator(valid_cargo, place)
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max_iterations = train_config["max_iterations"]
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checkpoint_interval = train_config["checkpoint_interval"]
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snap_interval = train_config["snap_interval"]
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eval_interval = train_config["eval_interval"]
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checkpoint_dir = os.path.join(args.output, "checkpoints")
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log_dir = os.path.join(args.output, "log")
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writer = LogWriter(log_dir)
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# load parameters and optimizer, and update iterations done so far
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if args.checkpoint is not None:
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iteration = io.load_parameters(
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model, optim, checkpoint_path=args.checkpoint)
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else:
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iteration = io.load_parameters(
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model,
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optim,
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checkpoint_dir=checkpoint_dir,
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iteration=args.iteration)
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global_step = iteration + 1
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iterator = iter(tqdm.tqdm(train_loader))
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while global_step <= max_iterations:
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try:
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batch = next(iterator)
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except StopIteration as e:
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iterator = iter(tqdm.tqdm(train_loader))
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batch = next(iterator)
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audio_clips, mel_specs, audio_starts = batch
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model.train()
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y_var = model(audio_clips, mel_specs, audio_starts)
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loss_var = model.loss(y_var, audio_clips)
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loss_var.backward()
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loss_np = loss_var.numpy()
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writer.add_scalar("loss", loss_np[0], global_step)
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writer.add_scalar("learning_rate",
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optim._learning_rate.step().numpy()[0], global_step)
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optim.minimize(loss_var)
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optim.clear_gradients()
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print("global_step: {}\tloss: {:<8.6f}".format(global_step, loss_np[
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0]))
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if global_step % snap_interval == 0:
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valid_model(model, valid_loader, writer, global_step, sample_rate)
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if global_step % checkpoint_interval == 0:
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io.save_parameters(checkpoint_dir, global_step, model, optim)
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global_step += 1
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