Update files from the datasets library (from 1.13.3)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.13.3

README.md

@@ -35,10 +35,11 @@ size_categories:
 source_datasets:
 - extended|other-common-voice
 task_categories:
-- other
+- speech-processing
 task_ids:
-- other-other-speech-translation
+- automatic-speech-recognition
 paperswithcode_id: null
+pretty_name: CoVoST 2
 ---
 
 # Dataset Card for covost2
@@ -98,6 +99,9 @@ A typical data point comprises the path to the audio file, usually called `file`
 ```
 {'client_id': 'd277a1f3904ae00b09b73122b87674e7c2c78e08120721f37b5577013ead08d1ea0c053ca5b5c2fb948df2c81f27179aef2c741057a17249205d251a8fe0e658',
  'file': '/home/suraj/projects/fairseq_s2t/covst/dataset/en/clips/common_voice_en_18540003.mp3',
+ 'audio': {'path': '/home/suraj/projects/fairseq_s2t/covst/dataset/en/clips/common_voice_en_18540003.mp3',
+		   'array': array([-0.00048828, -0.00018311, -0.00137329, ...,  0.00079346, 0.00091553,  0.00085449], dtype=float32),
+		   'sampling_rate': 48000},
  'id': 'common_voice_en_18540003',
  'sentence': 'When water is scarce, avoid wasting it.',
  'translation': 'Wenn Wasser knapp ist, verschwenden Sie es nicht.'}
@@ -107,6 +111,8 @@ A typical data point comprises the path to the audio file, usually called `file`
 
 - file: A path to the downloaded audio file in .mp3 format.
 
+- audio: A dictionary containing the path to the downloaded audio file, the decoded audio array, and the sampling rate. Note that when accessing the audio column: `dataset[0]["audio"]` the audio file is automatically decoded and resampled to `dataset.features["audio"].sampling_rate`. Decoding and resampling of a large number of audio files might take a significant amount of time. Thus it is important to first query the sample index before the `"audio"` column, *i.e.* `dataset[0]["audio"]` should **always** be preferred over `dataset["audio"][0]`.
+
 - sentence: The transcription of the audio file in source language.
 
 - translation: The transcription of the audio file in the target language. 

covost2.py

@@ -99,6 +99,7 @@ class Covost2(datasets.GeneratorBasedBuilder):
             features=datasets.Features(
                 client_id=datasets.Value("string"),
                 file=datasets.Value("string"),
+                audio=datasets.features.Audio(sampling_rate=16_000),
                 sentence=datasets.Value("string"),
                 translation=datasets.Value("string"),
                 id=datasets.Value("string"),
@@ -181,6 +182,7 @@ class Covost2(datasets.GeneratorBasedBuilder):
                 "sentence": row["sentence"],
                 "translation": row["translation"],
                 "file": os.path.join(source_path, "clips", row["path"]),
+                "audio": os.path.join(source_path, "clips", row["path"]),
             }
 
     def _load_df_from_tsv(self, path):