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@@ -1,20 +1,20 @@
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+import logging
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import os
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import random
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-import numpy
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from functools import partial
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import torch
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-import torchaudio
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import torch.distributed as dist
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+import torchaudio
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from kaldiio import ReadHelper
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from torch.utils.data import IterableDataset
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from funasr.datasets.large_datasets.datapipes.batch import MaxTokenBucketizerIterDataPipe
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from funasr.datasets.large_datasets.datapipes.filter import FilterIterDataPipe
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from funasr.datasets.large_datasets.datapipes.map import MapperIterDataPipe
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+from funasr.datasets.large_datasets.utils.clipping import clipping
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from funasr.datasets.large_datasets.utils.filter import filter
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from funasr.datasets.large_datasets.utils.padding import padding
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-from funasr.datasets.large_datasets.utils.clipping import clipping
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from funasr.datasets.large_datasets.utils.tokenize import tokenize
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@@ -28,7 +28,8 @@ def read_lists(list_file):
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class AudioDataset(IterableDataset):
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- def __init__(self, scp_lists, data_names, data_types, frontend_conf=None, shuffle=True, mode="train"):
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+ def __init__(self, scp_lists, data_names, data_types, frontend_conf=None, shuffle=True, speed_perturb=None,
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+ mode="train"):
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self.scp_lists = scp_lists
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self.data_names = data_names
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self.data_types = data_types
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@@ -40,6 +41,9 @@ class AudioDataset(IterableDataset):
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self.world_size = 1
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self.worker_id = 0
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self.num_workers = 1
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+ self.speed_perturb = speed_perturb
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+ if self.speed_perturb is not None:
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+ logging.info("Using speed_perturb: {}".format(speed_perturb))
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def set_epoch(self, epoch):
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self.epoch = epoch
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@@ -124,9 +128,14 @@ class AudioDataset(IterableDataset):
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if sampling_rate != self.frontend_conf["fs"]:
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waveform = torchaudio.transforms.Resample(orig_freq=sampling_rate,
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new_freq=self.frontend_conf["fs"])(waveform)
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- sampling_rate = self.frontend_conf["fs"]
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+ sampling_rate = self.frontend_conf["fs"]
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waveform = waveform.numpy()
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mat = waveform[0]
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+ if self.speed_perturb is not None:
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+ speed = random.choice(self.speed_perturb)
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+ if speed != 1.0:
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+ mat, _ = torchaudio.sox_effects.apply_effects_tensor(
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+ mat, sampling_rate, [['speed', str(speed)], ['rate', str(sampling_rate)]])
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sample_dict[data_name] = mat
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sample_dict["sampling_rate"] = sampling_rate
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if data_name == "speech":
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@@ -161,13 +170,15 @@ def Dataset(data_list_file,
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bpe_tokenizer,
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conf,
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frontend_conf,
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+ speed_perturb=None,
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mode="train",
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batch_mode="padding"):
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scp_lists = read_lists(data_list_file)
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shuffle = conf.get('shuffle', True)
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data_names = conf.get("data_names", "speech,text")
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data_types = conf.get("data_types", "kaldi_ark,text")
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- dataset = AudioDataset(scp_lists, data_names, data_types, frontend_conf=frontend_conf, shuffle=shuffle, mode=mode)
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+ dataset = AudioDataset(scp_lists, data_names, data_types, frontend_conf=frontend_conf, shuffle=shuffle,
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+ speed_perturb=speed_perturb, mode=mode)
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filter_conf = conf.get('filter_conf', {})
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filter_fn = partial(filter, **filter_conf)
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