def test_sudormrf():
model = SuDORMRFNet(
2, bn_chan=10, num_blocks=4, upsampling_depth=2, kernel_size=21, n_filters=12,
)
test_input = torch.randn(1, 801)
model_conf = model.serialize()
reconstructed_model = SuDORMRFNet.from_pretrained(model_conf)
assert_allclose(model(test_input), reconstructed_model(test_input))
def test_sudormrf():
_default_test_model(
SuDORMRFNet(
2,
bn_chan=10,
num_blocks=4,
upsampling_depth=2,
kernel_size=21,
n_filters=12,
))
def main(conf):
train_set = LibriMix(
csv_dir=conf["data"]["train_dir"],
task=conf["data"]["task"],
sample_rate=conf["data"]["sample_rate"],
n_src=conf["data"]["n_src"],
segment=conf["data"]["segment"],
)
val_set = LibriMix(
csv_dir=conf["data"]["valid_dir"],
task=conf["data"]["task"],
sample_rate=conf["data"]["sample_rate"],
n_src=conf["data"]["n_src"],
segment=conf["data"]["segment"],
)
train_loader = DataLoader(
train_set,
shuffle=True,
batch_size=conf["training"]["batch_size"],
num_workers=conf["training"]["num_workers"],
drop_last=True,
)
val_loader = DataLoader(
val_set,
shuffle=False,
batch_size=conf["training"]["batch_size"],
num_workers=conf["training"]["num_workers"],
drop_last=True,
)
conf["masknet"].update({"n_src": conf["data"]["n_src"]})
model = SuDORMRFNet(
**conf["filterbank"], **conf["masknet"], sample_rate=conf["data"]["sample_rate"]
)
optimizer = make_optimizer(model.parameters(), **conf["optim"])
# Define scheduler
scheduler = None
if conf["training"]["half_lr"]:
scheduler = ReduceLROnPlateau(optimizer=optimizer, factor=0.5, patience=5)
# Just after instantiating, save the args. Easy loading in the future.
exp_dir = conf["main_args"]["exp_dir"]
os.makedirs(exp_dir, exist_ok=True)
conf_path = os.path.join(exp_dir, "conf.yml")
with open(conf_path, "w") as outfile:
yaml.safe_dump(conf, outfile)
# Define Loss function.
loss_func = PITLossWrapper(pairwise_neg_sisdr, pit_from="pw_mtx")
system = System(
model=model,
loss_func=loss_func,
optimizer=optimizer,
train_loader=train_loader,
val_loader=val_loader,
scheduler=scheduler,
config=conf,
)
# Define callbacks
callbacks = []
checkpoint_dir = os.path.join(exp_dir, "checkpoints/")
checkpoint = ModelCheckpoint(
checkpoint_dir, monitor="val_loss", mode="min", save_top_k=5, verbose=True
)
callbacks.append(checkpoint)
if conf["training"]["early_stop"]:
callbacks.append(EarlyStopping(monitor="val_loss", mode="min", patience=30, verbose=True))
# Don't ask GPU if they are not available.
gpus = -1 if torch.cuda.is_available() else None
distributed_backend = "ddp" if torch.cuda.is_available() else None
trainer = pl.Trainer(
max_epochs=conf["training"]["epochs"],
callbacks=callbacks,
default_root_dir=exp_dir,
gpus=gpus,
distributed_backend=distributed_backend,
limit_train_batches=1.0, # Useful for fast experiment
gradient_clip_val=5.0,
)
trainer.fit(system)
best_k = {k: v.item() for k, v in checkpoint.best_k_models.items()}
with open(os.path.join(exp_dir, "best_k_models.json"), "w") as f:
json.dump(best_k, f, indent=0)
state_dict = torch.load(checkpoint.best_model_path)
system.load_state_dict(state_dict=state_dict["state_dict"])
system.cpu()
to_save = system.model.serialize()
to_save.update(train_set.get_infos())
torch.save(to_save, os.path.join(exp_dir, "best_model.pth"))
def main(conf):
compute_metrics = update_compute_metrics(conf["compute_wer"],
COMPUTE_METRICS)
anno_df = pd.read_csv(
Path(conf["test_dir"]).parent.parent.parent / "test_annotations.csv")
wer_tracker = (MockWERTracker() if not conf["compute_wer"] else WERTracker(
ASR_MODEL_PATH, anno_df))
model_path = os.path.join(conf["exp_dir"], "best_model.pth")
model = SuDORMRFNet.from_pretrained(model_path)
# Handle device placement
if conf["use_gpu"]:
model.cuda()
model_device = next(model.parameters()).device
test_set = LibriMix(
csv_dir=conf["test_dir"],
task=conf["task"],
sample_rate=conf["sample_rate"],
n_src=conf["train_conf"]["data"]["n_src"],
segment=None,
return_id=True,
) # Uses all segment length
# Used to reorder sources only
loss_func = PITLossWrapper(pairwise_neg_sisdr, pit_from="pw_mtx")
# Randomly choose the indexes of sentences to save.
eval_save_dir = os.path.join(conf["exp_dir"], conf["out_dir"])
ex_save_dir = os.path.join(eval_save_dir, "examples/")
if conf["n_save_ex"] == -1:
conf["n_save_ex"] = len(test_set)
save_idx = random.sample(range(len(test_set)), conf["n_save_ex"])
series_list = []
torch.no_grad().__enter__()
for idx in tqdm(range(len(test_set))):
# Forward the network on the mixture.
mix, sources, ids = test_set[idx]
mix, sources = tensors_to_device([mix, sources], device=model_device)
est_sources = model(mix.unsqueeze(0))
loss, reordered_sources = loss_func(est_sources,
sources[None],
return_est=True)
mix_np = mix.cpu().data.numpy()
sources_np = sources.cpu().data.numpy()
est_sources_np = reordered_sources.squeeze(0).cpu().data.numpy()
# For each utterance, we get a dictionary with the mixture path,
# the input and output metrics
utt_metrics = get_metrics(
mix_np,
sources_np,
est_sources_np,
sample_rate=conf["sample_rate"],
metrics_list=COMPUTE_METRICS,
)
utt_metrics["mix_path"] = test_set.mixture_path
est_sources_np_normalized = normalize_estimates(est_sources_np, mix_np)
utt_metrics.update(**wer_tracker(
mix=mix_np,
clean=sources_np,
estimate=est_sources_np_normalized,
wav_id=ids,
sample_rate=conf["sample_rate"],
))
series_list.append(pd.Series(utt_metrics))
# Save some examples in a folder. Wav files and metrics as text.
if idx in save_idx:
local_save_dir = os.path.join(ex_save_dir, "ex_{}/".format(idx))
os.makedirs(local_save_dir, exist_ok=True)
sf.write(local_save_dir + "mixture.wav", mix_np,
conf["sample_rate"])
# Loop over the sources and estimates
for src_idx, src in enumerate(sources_np):
sf.write(local_save_dir + "s{}.wav".format(src_idx), src,
conf["sample_rate"])
for src_idx, est_src in enumerate(est_sources_np_normalized):
sf.write(
local_save_dir + "s{}_estimate.wav".format(src_idx),
est_src,
conf["sample_rate"],
)
# Write local metrics to the example folder.
with open(local_save_dir + "metrics.json", "w") as f:
json.dump(utt_metrics, f, indent=0)
# Save all metrics to the experiment folder.
all_metrics_df = pd.DataFrame(series_list)
all_metrics_df.to_csv(os.path.join(eval_save_dir, "all_metrics.csv"))
# Print and save summary metrics
final_results = {}
for metric_name in compute_metrics:
input_metric_name = "input_" + metric_name
ldf = all_metrics_df[metric_name] - all_metrics_df[input_metric_name]
final_results[metric_name] = all_metrics_df[metric_name].mean()
final_results[metric_name + "_imp"] = ldf.mean()
print("Overall metrics :")
pprint(final_results)
if conf["compute_wer"]:
print("\nWER report")
wer_card = wer_tracker.final_report_as_markdown()
print(wer_card)
# Save the report
with open(os.path.join(eval_save_dir, "final_wer.md"), "w") as f:
f.write(wer_card)
with open(os.path.join(eval_save_dir, "final_metrics.json"), "w") as f:
json.dump(final_results, f, indent=0)
model_dict = torch.load(model_path, map_location="cpu")
os.makedirs(os.path.join(conf["exp_dir"], "publish_dir"), exist_ok=True)
publishable = save_publishable(
os.path.join(conf["exp_dir"], "publish_dir"),
model_dict,
metrics=final_results,
train_conf=train_conf,
)
