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Cannot extract the features (columns) for the split 'train' of the config 'mesolitica--noisy-join-mixed-asr' of the dataset.
Error code:   FeaturesError
Exception:    UnicodeDecodeError
Message:      'utf-8' codec can't decode byte 0x89 in position 0: invalid start byte
Traceback:    Traceback (most recent call last):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/packaged_modules/json/", line 131, in _generate_tables
                  pa_table = paj.read_json(
                File "pyarrow/_json.pyx", line 246, in pyarrow._json.read_json
                File "pyarrow/error.pxi", line 143, in pyarrow.lib.pyarrow_internal_check_status
                File "pyarrow/error.pxi", line 99, in pyarrow.lib.check_status
              pyarrow.lib.ArrowInvalid: JSON parse error: Invalid value. in row 0
              During handling of the above exception, another exception occurred:
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/", line 529, in compute_first_rows_response
                  iterable_dataset = iterable_dataset._resolve_features()
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/", line 1688, in _resolve_features
                  features = _infer_features_from_batch(self._head())
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/", line 824, in _head
                  return _examples_to_batch(list(self.take(n)))
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/", line 937, in __iter__
                  for key, example in ex_iterable:
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/", line 678, in __iter__
                  yield from islice(self.ex_iterable, self.n)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/", line 113, in __iter__
                  yield from self.generate_examples_fn(**self.kwargs)
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/", line 763, in wrapper
                  for key, table in generate_tables_fn(**kwargs):
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/packaged_modules/json/", line 152, in _generate_tables
                  dataset = json.load(f)
                File "/usr/local/lib/python3.9/json/", line 293, in load
                  return loads(,
                File "/src/services/worker/.venv/lib/python3.9/site-packages/datasets/download/", line 372, in read_with_retries
                  out = read(*args, **kwargs)
                File "/usr/local/lib/python3.9/", line 322, in decode
                  (result, consumed) = self._buffer_decode(data, self.errors, final)
              UnicodeDecodeError: 'utf-8' codec can't decode byte 0x89 in position 0: invalid start byte

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Noisy join mixed ASR

Problem with common ASR dataset, each audio sample is a monolanguage, but we can generate an audio sample with multilanguage using ASR and Force Alignment models. Notebooks at

Figure like below,

Generated samples ~601 hours.

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