Updated README.md

README.md

@@ -104,18 +104,18 @@ Train your own CTC or Seq2Seq Automatic Speech Recognition models on Nigerian Ac
 ### Data Instances
 
 A typical data point comprises the `path` to the audio file and its `sentence`. 
-Additional fields include `accent`, `age`, `client_id`, `up_votes`, `down_votes`, `gender`, `locale` and `segment`.
+Additional fields include `accent`, `client_id`, `locale` and `segment`.
 
 ```python
 {
   'client_id': 'user_3279', 
-  'path': 'clips/audio_sample_3280.mp3', 
-  'audio': 'clips/audio_sample_3280.mp3', 
-  'sentence': 'The majority of House members adopted the opinion that the case had been wrongly decided and agreed to depart from their earlier decision.', 
-  'up_votes': 0, 
-  'down_votes': 0, 
-  'age': None, 
-  'gender': None, 
+  'path': 'clips/audio_sample_3280.mp3',
+  'audio': {
+    'path': 'clips/audio_sample_1.mp3', 
+    'array': array([-0.00048828, -0.00018311, -0.00137329, ...,  0.00079346, 0.00091553,  0.00085449], dtype=float32), 
+    'sampling_rate': 48000
+  },
+  'sentence': 'Its images were used by among others Palestinians in their protest against Israel', 
   'accent': 'nigerian', 
   'locale': 'en', 
   'segment': None
@@ -128,18 +128,13 @@ Additional fields include `accent`, `age`, `client_id`, `up_votes`, `down_votes`
 
 `path` (`string`): The path to the audio file
 
-`audio` (`string`): The path to the audio file
+`audio` (`string`): audio (dict): 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` (`string`): The sentence the user was prompted to speak
 
-`up_votes` (`int64`): How many upvotes the audio file has received from reviewers
-
-`down_votes` (`int64`): How many downvotes the audio file has received from reviewers
-
-`age` (`string`): The age of the speaker (e.g. `teens`, `twenties`, `fifties`)
-
-`gender` (`string`): The gender of the speaker
-
 `accent` (`string`): Accent of the speaker
 
 `locale` (`string`): The locale of the speaker