---
thumbnail: https://github.com/rinnakk/japanese-pretrained-models/blob/master/rinna.png
language: ja
license: apache-2.0
datasets: reazon-research/reazonspeech
pipeline_tag: feature-extraction
inference: false
tags:
  - wav2vec2
  - speech
---

# `rinna/japanese-wav2vec2-base`

![rinna-icon](./rinna.png)

# Overview

This is a Japanese wav2vec 2.0 Base model trained by [rinna Co., Ltd.](https://rinna.co.jp/)

* **Model summary**

  The model architecture is the same as the [original wav2vec 2.0 Base model](https://huggingface.co/facebook/wav2vec2-base), which contains 12 transformer layers with 12 attention heads.
  The model was trained using code from the [official repository](https://github.com/facebookresearch/fairseq/tree/main/examples/wav2vec), and the detailed training configuration can be found in the same repository and the [original paper](https://proceedings.neurips.cc/paper/2020/hash/92d1e1eb1cd6f9fba3227870bb6d7f07-Abstract.html).


* **Training**

  The model was trained on approximately 19,000 hours of following Japanese speech corpus ReazonSpeech v1.
  - [ReazonSpeech](https://huggingface.co/datasets/reazon-research/reazonspeech)

* **Contributors**

  - [Yukiya Hono](https://huggingface.co/yky-h)
  - [Kentaro Mitsui](https://huggingface.co/Kentaro321)
  - [Kei Sawada](https://huggingface.co/keisawada)

---

# How to use the model

```python
import soundfile as sf
from transformers import AutoFeatureExtractor, AutoModel

model_name = "rinna/japanese-wav2vec2-base"
feature_extractor = AutoFeatureExtractor.from_pretrained(model_name)
model = AutoModel.from_pretrained(model_name)
model.eval()

raw_speech_16kHz, sr = sf.read(audio_file)
inputs = feature_extractor(
    raw_speech_16kHz,
    return_tensors="pt",
    sampling_rate=sr,
)
outputs = model(**inputs)

print(f"Input:  {inputs.input_values.size()}")  # [1, #samples]
print(f"Output: {outputs.last_hidden_state.size()}")  # [1, #frames, 768]
```

A fairseq checkpoint file can also be available [here](https://huggingface.co/rinna/japanese-wav2vec2-base/tree/main/fairseq).

---

# How to cite
```bibtex
@misc{rinna-japanese-wav2vec2-base,
  title={rinna/japanese-wav2vec2-base},
  author={Hono, Yukiya and Mitsui, Kentaro and Sawada, Kei},
  url={https://huggingface.co/rinna/japanese-wav2vec2-base}
}
```

---

# Citations
```bibtex
@inproceedings{baevski2020wav2vec,
  title={wav2vec 2.0: A Framework for Self-Supervised Learning of Speech Representations},
  author={Baevski, Alexei and Zhou, Yuhao and Mohamed, Abdelrahman and Auli, Michael},
  booktitle={Advances in Neural Information Processing Systems},
  volume={33},
  pages={12449--12460},
  year={2020},
  url={https://proceedings.neurips.cc/paper/2020/hash/92d1e1eb1cd6f9fba3227870bb6d7f07-Abstract.html}
}
```
---

# License
[The Apache 2.0 license](https://www.apache.org/licenses/LICENSE-2.0)