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144 lines
3.9 KiB
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144 lines
3.9 KiB
Plaintext
<!--Copyright 2021 The HuggingFace Team. All rights reserved.
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Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
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# Wav2Vec2
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## Overview
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The Wav2Vec2 model was proposed in [wav2vec 2.0: A Framework for Self-Supervised Learning of Speech Representations](https://arxiv.org/abs/2006.11477) by Alexei Baevski, Henry Zhou, Abdelrahman Mohamed, Michael Auli.
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The abstract from the paper is the following:
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*We show for the first time that learning powerful representations from speech audio alone followed by fine-tuning on
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transcribed speech can outperform the best semi-supervised methods while being conceptually simpler. wav2vec 2.0 masks
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the speech input in the latent space and solves a contrastive task defined over a quantization of the latent
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representations which are jointly learned. Experiments using all labeled data of Librispeech achieve 1.8/3.3 WER on the
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clean/other test sets. When lowering the amount of labeled data to one hour, wav2vec 2.0 outperforms the previous state
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of the art on the 100 hour subset while using 100 times less labeled data. Using just ten minutes of labeled data and
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pre-training on 53k hours of unlabeled data still achieves 4.8/8.2 WER. This demonstrates the feasibility of speech
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recognition with limited amounts of labeled data.*
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Tips:
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- Wav2Vec2 is a speech model that accepts a float array corresponding to the raw waveform of the speech signal.
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- Wav2Vec2 model was trained using connectionist temporal classification (CTC) so the model output has to be decoded
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using [`Wav2Vec2CTCTokenizer`].
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This model was contributed by [patrickvonplaten](https://huggingface.co/patrickvonplaten).
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## Wav2Vec2Config
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[[autodoc]] Wav2Vec2Config
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## Wav2Vec2CTCTokenizer
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[[autodoc]] Wav2Vec2CTCTokenizer
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- __call__
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- save_vocabulary
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- decode
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- batch_decode
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## Wav2Vec2FeatureExtractor
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[[autodoc]] Wav2Vec2FeatureExtractor
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- __call__
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## Wav2Vec2Processor
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[[autodoc]] Wav2Vec2Processor
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- __call__
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- pad
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- from_pretrained
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- save_pretrained
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- batch_decode
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- decode
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- as_target_processor
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## Wav2Vec2ProcessorWithLM
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[[autodoc]] Wav2Vec2ProcessorWithLM
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- __call__
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- pad
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- from_pretrained
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- save_pretrained
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- batch_decode
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- decode
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- as_target_processor
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## Wav2Vec2 specific outputs
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[[autodoc]] models.wav2vec2_with_lm.processing_wav2vec2_with_lm.Wav2Vec2DecoderWithLMOutput
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[[autodoc]] models.wav2vec2.modeling_wav2vec2.Wav2Vec2BaseModelOutput
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[[autodoc]] models.wav2vec2.modeling_wav2vec2.Wav2Vec2ForPreTrainingOutput
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[[autodoc]] models.wav2vec2.modeling_flax_wav2vec2.FlaxWav2Vec2BaseModelOutput
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[[autodoc]] models.wav2vec2.modeling_flax_wav2vec2.FlaxWav2Vec2ForPreTrainingOutput
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## Wav2Vec2Model
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[[autodoc]] Wav2Vec2Model
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- forward
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## Wav2Vec2ForCTC
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[[autodoc]] Wav2Vec2ForCTC
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- forward
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## Wav2Vec2ForSequenceClassification
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[[autodoc]] Wav2Vec2ForSequenceClassification
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- forward
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## Wav2Vec2ForAudioFrameClassification
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[[autodoc]] Wav2Vec2ForAudioFrameClassification
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- forward
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## Wav2Vec2ForXVector
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[[autodoc]] Wav2Vec2ForXVector
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- forward
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## Wav2Vec2ForPreTraining
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[[autodoc]] Wav2Vec2ForPreTraining
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- forward
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## TFWav2Vec2Model
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[[autodoc]] TFWav2Vec2Model
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- call
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## TFWav2Vec2ForCTC
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[[autodoc]] TFWav2Vec2ForCTC
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- call
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## FlaxWav2Vec2Model
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[[autodoc]] FlaxWav2Vec2Model
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- __call__
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## FlaxWav2Vec2ForCTC
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[[autodoc]] FlaxWav2Vec2ForCTC
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- __call__
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## FlaxWav2Vec2ForPreTraining
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[[autodoc]] FlaxWav2Vec2ForPreTraining
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- __call__
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