Dataset Viewer
The dataset viewer is not available for this subset.
Cannot get the split names for the config 'default' of the dataset.
Exception:    SplitsNotFoundError
Message:      The split names could not be parsed from the dataset config.
Traceback:    Traceback (most recent call last):
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 286, in get_dataset_config_info
                  for split_generator in builder._split_generators(
                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/folder_based_builder/folder_based_builder.py", line 198, in _split_generators
                  for pa_metadata_table in self._read_metadata(downloaded_metadata_file, metadata_ext=metadata_ext):
                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/packaged_modules/folder_based_builder/folder_based_builder.py", line 309, in _read_metadata
                  for df in csv_file_reader:
                            ^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/pandas/io/parsers/readers.py", line 1843, in __next__
                  return self.get_chunk()
                         ^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/pandas/io/parsers/readers.py", line 1985, in get_chunk
                  return self.read(nrows=size)
                         ^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/pandas/io/parsers/readers.py", line 1923, in read
                  ) = self._engine.read(  # type: ignore[attr-defined]
                      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/pandas/io/parsers/c_parser_wrapper.py", line 234, in read
                  chunks = self._reader.read_low_memory(nrows)
                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
                File "pandas/_libs/parsers.pyx", line 850, in pandas._libs.parsers.TextReader.read_low_memory
                File "pandas/_libs/parsers.pyx", line 905, in pandas._libs.parsers.TextReader._read_rows
                File "pandas/_libs/parsers.pyx", line 874, in pandas._libs.parsers.TextReader._tokenize_rows
                File "pandas/_libs/parsers.pyx", line 891, in pandas._libs.parsers.TextReader._check_tokenize_status
                File "pandas/_libs/parsers.pyx", line 2061, in pandas._libs.parsers.raise_parser_error
              pandas.errors.ParserError: Error tokenizing data. C error: Expected 4 fields in line 32, saw 5
              
              
              The above exception was the direct cause of the following exception:
              
              Traceback (most recent call last):
                File "/src/services/worker/src/worker/job_runners/config/split_names.py", line 65, in compute_split_names_from_streaming_response
                  for split in get_dataset_split_names(
                               ^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 340, in get_dataset_split_names
                  info = get_dataset_config_info(
                         ^^^^^^^^^^^^^^^^^^^^^^^^
                File "/usr/local/lib/python3.12/site-packages/datasets/inspect.py", line 291, in get_dataset_config_info
                  raise SplitsNotFoundError("The split names could not be parsed from the dataset config.") from err
              datasets.inspect.SplitsNotFoundError: The split names could not be parsed from the dataset config.

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Dataset Description

This dataset contains 50 clean audio recordings for Text-to-Speech training, recorded by a single speaker. Created for LIN3046 Computational Linguistics Assignment 2.

  • Total Duration: Approximately 300 seconds (over 3 minutes)
  • Number of Samples: 50
  • Language: Mandarin Chinese (40 sentences) + English (10 sentences)
  • Speaker: stuedent1
  • Recording Environment: Quiet room using iPad Voice Memo
  • Audio Format: WAV (16-bit PCM, 44100Hz)
  • Dataset Size: Approximately 50MB

Collection and Processing Steps

1. Script Preparation

  • Prepared 50 sentences covering daily conversation, academic topics, and technology
  • Included 10 English sentences for multilingual coverage
  • Organized sentences in metadata.csv with exact transcriptions

2. Recording Process

  • Recorded using iPad's Voice Memo application
  • Divided recording into 5 segments for better quality control
  • Ensured consistent volume and microphone distance
  • Recorded in a quiet environment to minimize background noise

3. Audio Processing

  • Converted recordings from MP4 to WAV format using online converter
  • Split long recordings into individual sentence-level clips
  • Trimmed leading and trailing silence to less than 0.5 seconds
  • Named files sequentially (s001.wav to s050.wav)
  • Organized files in wavs/ directory

4. Quality Assurance

  • Verified text-audio alignment for all 50 samples
  • Checked audio clarity and absence of excessive noise
  • Confirmed total duration exceeds the 3-minute requirement
  • Ensured metadata.csv correctly references all audio files

Technical and Linguistic Issues Encountered

Issue 1: Format Conversion on Mobile Device

Problem: Initial recordings were saved in MP4 format by the Voice Memo app, but the assignment requires WAV format for TTS compatibility. Finding a reliable conversion tool for iPad was challenging.

Solution: Used online-audio-converter.com through Safari browser. The website allowed batch conversion with correct specifications (16-bit, 44100Hz). After conversion, verified file integrity by checking sample rate and ensuring all files were playable.

Issue 2: Maintaining Consistency Across Recording Sessions

Problem: Recording in 5 separate segments led to slight variations in audio quality, including different background noise levels and minor volume differences between segments.

Solution: Applied basic noise reduction using audio editing tools and normalized volume levels across all files. More importantly, maintained the same recording position and environment for all sessions to minimize variations.

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