VoxCeleb1Verification

class torchaudio.datasets.VoxCeleb1Verification(root: Union[str, Path], meta_url: str = 'https://www.robots.ox.ac.uk/~vgg/data/voxceleb/meta/veri_test.txt', download: bool = False)

VoxCeleb1 [Nagrani et al., 2017] dataset for speaker verification task.

Each data sample contains a pair of waveforms, sample rate, the label indicating if they are from the same speaker, and the file ids.

Parameters:

• root (str or Path) – Path to the directory where the dataset is found or downloaded.

• meta_url (str, optional) – The url of meta file that contains a list of utterance pairs and the corresponding labels. The format of each row is label file_path1 file_path2". For example: ``1 id10270/x6uYqmx31kE/00001.wav id10270/8jEAjG6SegY/00008.wav. 1 means the two utterances are from the same speaker, 0 means not. (Default: "https://www.robots.ox.ac.uk/~vgg/data/voxceleb/meta/veri_test.txt")

• download (bool, optional) – Whether to download the dataset if it is not found at root path. (Default: False).

Note

The file structure of VoxCeleb1Verification dataset is as follows:

└─ root/

└─ wav/

└─ speaker_id folders

Users who pre-downloaded the "vox1_dev_wav.zip" and "vox1_test_wav.zip" files need to move the extracted files into the same root directory.

__getitem__

VoxCeleb1Verification.__getitem__(n: int) → Tuple[Tensor, Tensor, int, int, str, str]

Load the n-th sample from the dataset.

Parameters:

n (int) – The index of the sample to be loaded.

Returns:

Tuple of the following items;

Tensor:

Waveform of speaker 1

Tensor:

Waveform of speaker 2

int:

Sample rate

int:

Label

str:

File ID of speaker 1

str:

File ID of speaker 2

get_metadata

VoxCeleb1Verification.get_metadata(n: int) → Tuple[str, str, int, int, str, str]

Get metadata for the n-th sample from the dataset. Returns filepaths instead of waveforms, but otherwise returns the same fields as __getitem__().

Parameters:

n (int) – The index of the sample

Returns:

Tuple of the following items;

str:

Path to audio file of speaker 1

str:

Path to audio file of speaker 2

int:

Sample rate

int:

Label

str:

File ID of speaker 1

str:

File ID of speaker 2