The base model pretrained and fine-tuned on 100 hours of Librispeech on 16kHz sampled speech audio. When using the model
make sure that your speech input is also sampled at 16Khz.
Authors: Alexei Baevski, Wei-Ning Hsu, Qiantong Xu, Arun Babu, Jiatao Gu, Michael Auli
While the general idea of self-supervised learning is identical across modalities, the actual algorithms and objectives differ widely because they were developed with a single modality in mind. To get us closer to general self-supervised learning, we present data2vec, a framework that uses the same learning method for either speech, NLP or computer vision. The core idea is to predict latent representations of the full input data based on a masked view of the input in a self-distillation setup using a standard Transformer architecture. Instead of predicting modality-specific targets such as words, visual tokens or units of human speech which are local in nature, data2vec predicts contextualized latent representations that contain information from the entire input. Experiments on the major benchmarks of speech recognition, image classification, and natural language understanding demonstrate a new state of the art or competitive performance to predominant approaches.
For more information, please take a look at the
official paper.
To transcribe audio files the model can be used as a standalone acoustic model as follows:
1 from transformers import Wav2Vec2Processor, Data2VecForCTC
2 from datasets import load_dataset
3 import torch
4
5 # load model and processor
6 processor = Wav2Vec2Processor.from_pretrained("facebook/data2vec-audio-base-100h")
7 model = Data2VecForCTC.from_pretrained("facebook/data2vec-audio-base-100h")
8
9 # load dummy dataset and read soundfiles
10 ds = load_dataset("patrickvonplaten/librispeech_asr_dummy", "clean", split="validation")
11
12 # tokenize
13 input_values = processor(ds[0]["audio"]["array"],, return_tensors="pt", padding="longest").input_values # Batch size 1
14
15 # retrieve logits
16 logits = model(input_values).logits
17
18 # take argmax and decode
19 predicted_ids = torch.argmax(logits, dim=-1)
20 transcription = processor.batch_decode(predicted_ids)
