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# Whisper [[whisper]]
## ๊ฐœ์š” [[overview]]
Whisper ๋ชจ๋ธ์€ Alec Radford, Jong Wook Kim, Tao Xu, Greg Brockman, Christine McLeavey, Ilya Sutskever์— ์˜ํ•ด [Robust Speech Recognition via Large-Scale Weak Supervision](https://cdn.openai.com/papers/whisper.pdf)์—์„œ ์ œ์•ˆ๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
๋…ผ๋ฌธ์˜ ์ดˆ๋ก์€ ๋‹ค์Œ๊ณผ ๊ฐ™์Šต๋‹ˆ๋‹ค:
*์šฐ๋ฆฌ๋Š” ์ธํ„ฐ๋„ท์—์„œ ๋Œ€๋Ÿ‰์˜ ์˜ค๋””์˜ค๋ฅผ ๊ธ€๋กœ ์˜ฎ๊ธด ๊ฒƒ์„ ์˜ˆ์ธกํ•˜๋„๋ก ๊ฐ„๋‹จํžˆ ํ›ˆ๋ จ๋œ ์Œ์„ฑ ์ฒ˜๋ฆฌ ์‹œ์Šคํ…œ์˜ ์„ฑ๋Šฅ์„ ์—ฐ๊ตฌํ•ฉ๋‹ˆ๋‹ค. 68๋งŒ ์‹œ๊ฐ„์˜ ๋‹ค๊ตญ์–ด ๋ฐ ๋‹ค์ค‘ ์ž‘์—… ์ง€๋„(multitask supervision)์— ํ™•์žฅํ–ˆ์„ ๋•Œ, ๊ฒฐ๊ณผ ๋ชจ๋ธ์€ ํ‘œ์ค€ ๋ฒค์น˜๋งˆํฌ์— ์ž˜ ์ผ๋ฐ˜ํ™”๋˜๋ฉฐ, ๋ฏธ์„ธ ์กฐ์ •์ด ํ•„์š” ์—†๋Š” ์ œ๋กœ์ƒท ์ „์†ก ์„ค์ •์—์„œ ์ด์ „์˜ ์™„์ „ํžˆ ์ง€๋„๋œ(fully-supervised) ๊ฒฐ๊ณผ์™€ ๊ฒฝ์Ÿํ•  ์ˆ˜ ์žˆ๋Š” ๊ฒฝ์šฐ๊ฐ€ ๋งŽ์Šต๋‹ˆ๋‹ค. ์‚ฌ๋žŒ๊ณผ ๋น„๊ตํ•˜๋ฉด, ์ด ๋ชจ๋ธ์€ ์‚ฌ๋žŒ์˜ ์ •ํ™•๋„์™€ ๊ฒฌ๊ณ ์„ฑ์— ๊ทผ์ ‘ํ•ฉ๋‹ˆ๋‹ค. ์šฐ๋ฆฌ๋Š” ๊ฐ•๋ ฅํ•œ ์Œ์„ฑ ์ฒ˜๋ฆฌ๋ฅผ ์œ„ํ•œ ์ถ”๊ฐ€ ์ž‘์—…์˜ ๊ธฐ๋ฐ˜์ด ๋  ๋ชจ๋ธ๊ณผ ์ถ”๋ก  ์ฝ”๋“œ๋ฅผ ๊ณต๊ฐœํ•ฉ๋‹ˆ๋‹ค.*
ํŒ:
- ์ด ๋ชจ๋ธ์€ ์ผ๋ฐ˜์ ์œผ๋กœ ๋ณ„๋„์˜ ๋ฏธ์„ธ ์กฐ์ • ์—†์ด๋„ ์ž˜ ์ž‘๋™ํ•ฉ๋‹ˆ๋‹ค.
- ์•„ํ‚คํ…์ฒ˜๋Š” ๊ณ ์ „์ ์ธ ์ธ์ฝ”๋”-๋””์ฝ”๋” ์•„ํ‚คํ…์ฒ˜๋ฅผ ๋”ฐ๋ฅด๊ธฐ ๋•Œ๋ฌธ์—, ์ถ”๋ก ์„ ์œ„ํ•ด [`~generation.GenerationMixin.generate`] ํ•จ์ˆ˜๋ฅผ ์‚ฌ์šฉํ•ฉ๋‹ˆ๋‹ค.
- ํ˜„์žฌ ์ถ”๋ก ์€ ์งง์€ ํ˜•์‹์—๋งŒ ๊ตฌํ˜„๋˜์–ด ์žˆ์œผ๋ฉฐ, ์˜ค๋””์˜ค๋Š” 30์ดˆ ๋ฏธ๋งŒ์˜ ์„ธ๊ทธ๋จผํŠธ๋กœ ๋ฏธ๋ฆฌ ๋ถ„ํ• ๋˜์–ด์•ผ ํ•ฉ๋‹ˆ๋‹ค. ํƒ€์ž„์Šคํƒฌํ”„๋ฅผ ํฌํ•จํ•œ ๊ธด ํ˜•์‹์— ๋Œ€ํ•œ ์ถ”๋ก ์€ ํ–ฅํ›„ ๋ฆด๋ฆฌ์Šค์—์„œ ๊ตฌํ˜„๋  ์˜ˆ์ •์ž…๋‹ˆ๋‹ค.
- [`WhisperProcessor`]๋ฅผ ์‚ฌ์šฉํ•˜์—ฌ ๋ชจ๋ธ์— ์‚ฌ์šฉํ•  ์˜ค๋””์˜ค๋ฅผ ์ค€๋น„ํ•˜๊ณ , ์˜ˆ์ธก๋œ ID๋ฅผ ํ…์ŠคํŠธ๋กœ ๋””์ฝ”๋”ฉํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
- ๋ชจ๋ธ๊ณผ ํ”„๋กœ์„ธ์„œ๋ฅผ ๋ณ€ํ™˜ํ•˜๋ ค๋ฉด ๋‹ค์Œ์„ ์‚ฌ์šฉํ•˜๋Š” ๊ฒƒ์ด ์ข‹์Šต๋‹ˆ๋‹ค:
```bash
python src/transformers/models/whisper/convert_openai_to_hf.py --checkpoint_path "" --pytorch_dump_folder_path "Arthur/whisper-3" --convert_preprocessor True
```
์Šคํฌ๋ฆฝํŠธ๋Š” OpenAI ์ฒดํฌํฌ์ธํŠธ์—์„œ ํ•„์š”ํ•œ ๋ชจ๋“  ๋งค๊ฐœ๋ณ€์ˆ˜๋ฅผ ์ž๋™์œผ๋กœ ๊ฒฐ์ •ํ•ฉ๋‹ˆ๋‹ค. OpenAI ๋ณ€ํ™˜์„ ์ˆ˜ํ–‰ํ•˜๋ ค๋ฉด `tiktoken` ๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ๋ฅผ ์„ค์น˜ํ•ด์•ผ ํ•ฉ๋‹ˆ๋‹ค.
๋ผ์ด๋ธŒ๋Ÿฌ๋ฆฌ๋ฅผ ์„ค์น˜ํ•ด์•ผ OpenAI ํ† ํฐํ™”๊ธฐ๋ฅผ `tokenizers` ๋ฒ„์ „์œผ๋กœ ๋ณ€ํ™˜ํ•  ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
์ด ๋ชจ๋ธ์€ [Arthur Zucker](https://huggingface.co/ArthurZ)์— ์˜ํ•ด ์ œ๊ณต๋˜์—ˆ์Šต๋‹ˆ๋‹ค. ์ด ๋ชจ๋ธ์˜ Tensorflow ๋ฒ„์ „์€ [amyeroberts](https://huggingface.co/amyeroberts)์— ์˜ํ•ด ์ œ๊ณต๋˜์—ˆ์Šต๋‹ˆ๋‹ค.
์›๋ณธ ์ฝ”๋“œ๋Š” [์—ฌ๊ธฐ](https://github.com/openai/whisper)์—์„œ ์ฐพ์„ ์ˆ˜ ์žˆ์Šต๋‹ˆ๋‹ค.
## WhisperConfig [[whisperconfig]]
[[autodoc]] WhisperConfig
## WhisperTokenizer [[whispertokenizer]]
[[autodoc]] WhisperTokenizer
- set_prefix_tokens
- build_inputs_with_special_tokens
- get_special_tokens_mask
- create_token_type_ids_from_sequences
- save_vocabulary
## WhisperTokenizerFast [[whispertokenizerfast]]
[[autodoc]] WhisperTokenizerFast
- set_prefix_tokens
- build_inputs_with_special_tokens
- get_special_tokens_mask
- create_token_type_ids_from_sequences
- save_vocabulary
## WhisperFeatureExtractor [[whisperfeatureextractor]]
[[autodoc]] WhisperFeatureExtractor
- __call__
## WhisperProcessor [[whisperprocessor]]
[[autodoc]] WhisperProcessor
- __call__
- from_pretrained
- save_pretrained
- batch_decode
- decode
## WhisperModel [[whispermodel]]
[[autodoc]] WhisperModel
- forward
- _mask_input_features
## WhisperForConditionalGeneration [[whisperforconditionalgeneration]]
[[autodoc]] WhisperForConditionalGeneration
- forward
## WhisperForAudioClassification [[whisperforaudioclassification]]
[[autodoc]] WhisperForAudioClassification
- forward
## TFWhisperModel [[tfwhispermodel]]
[[autodoc]] TFWhisperModel
- call
## TFWhisperForConditionalGeneration [[tfwhisperforconditionalgeneration]]
[[autodoc]] TFWhisperForConditionalGeneration
- call
## FlaxWhisperModel [[flaxwhispermodel]]
[[autodoc]] FlaxWhisperModel
- __call__
## FlaxWhisperForConditionalGeneration [[flaxwhisperforconditionalgeneration]]
[[autodoc]] FlaxWhisperForConditionalGeneration
- __call__
## FlaxWhisperForAudioClassification [[flaxwhisperforaudioclassification]]
[[autodoc]] FlaxWhisperForAudioClassification
- __call__