Improve AutomaticSpeechRecognition task template
COLLABORATOR
There is an open PR to do that: #3364. I just haven't had time to finish it... 
2022-03-22T15:48:54Z
https://github.com/huggingface/datasets/issues/3990#issuecomment-1075344823
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CONTRIBUTOR
> There is an open PR to do that: #3364. I just haven't had time to finish it...

😬 thanks...
2022-03-23T15:16:37Z
https://github.com/huggingface/datasets/issues/3990#issuecomment-1076481262
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**Is your feature request related to a problem? Please describe.**
[AutomaticSpeechRecognition task template](https://github.com/huggingface/datasets/blob/master/src/datasets/tasks/automatic_speech_recognition.py) is outdated as it uses path to audiofile as an audio column instead of a Audio feature itself (I guess it's because Audio feature didn't exist at the time this template was created).

**Describe the solution you'd like**
Change audio columns from string path to Audio feature.
