---
language:
- he
size_categories:
- 10K<n<100K
task_categories:
- automatic-speech-recognition
dataset_info:
  features:
  - name: uid
    dtype: string
  - name: file_id
    dtype: string
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: sentence
    dtype: string
  - name: n_segment
    dtype: int32
  - name: duration_ms
    dtype: float32
  - name: language
    dtype: string
  - name: sample_rate
    dtype: int32
  - name: course
    dtype: string
  - name: sentence_length
    dtype: int32
  - name: n_tokens
    dtype: int32
  splits:
  - name: train
    num_bytes: 17559119499.576
    num_examples: 75924
  download_size: 17274739665
  dataset_size: 17559119499.576
configs:
- config_name: default
  data_files:
  - split: train
    path: data/train-*
---


## Data Description

Hebrew Speech Recognition dataset from [Campus IL](https://campus.gov.il/).     

Data was scraped from the Campus website, which contains video lectures from various courses in Hebrew.     
Then subtitles were extracted from the videos and aligned with the audio.    
Subtitles that are not on Hebrew were removed (WIP: need to remove non-Hebrew audio as well, e.g. using simple classifier).    
Samples with duration less than 3 second were removed.    
Total duration of the dataset is 152 hours.    
Outliers in terms of the duration/char ratio were not removed, so it's possible to find suspiciously long or short sentences compared to the duration.       
Note: if loading is slow, just clone it :     
`git clone hebrew_speech_campus && cd hebrew_speech_campus && git lfs pull`    
and load it from the folder `load_dataset("./hebrew_speech_campus")`

## Data Format

Audio files are in WAV format, 16kHz sampling rate, 16bit, mono. Ignore `path` field, use `audio.array` field value.

## Data Usage
```python
from datasets import load_dataset

ds = load_dataset("imvladikon/hebrew_speech_campus", split="train", streaming=True)
print(next(iter(ds)))
```

## Data Sample
```
{'uid': '10c3eda27cf173ab25bde755d0023abed301fcfd',
 'file_id': '10c3eda27cf173ab25bde755d0023abed301fcfd_13',
 'audio': {'path': '/content/hebrew_speech_campus/data/from_another_angle-_mathematics_teaching_practices/10c3eda27cf173ab25bde755d0023abed301fcfd_13.wav',
  'array': array([ 5.54326562e-07,  3.60812592e-05, -2.35188054e-04, ...,
          2.34067178e-04,  1.55649337e-04,  6.32447700e-05]),
  'sampling_rate': 16000},
 'sentence': 'הדוברים צריכים לקחת עליו אחריות, ולהיות מחויבים לו כלומר, השיח צריך להיות מחויב',
 'n_segment': 13,
 'duration_ms': 6607.98193359375,
 'language': 'he',
 'sample_rate': 16000,
 'course': 'from_another_angle-_mathematics_teaching_practices',
 'sentence_length': 79,
 'n_tokens': 13}
```

## Data Splits and Stats
Split: train    
Number of samples: 75924    

## Citation

Please cite the following if you use this dataset in your work:     

```
@misc{imvladikon2023hebrew_speech_campus,
  author = {Gurevich, Vladimir},
  title = {Hebrew Speech Recognition Dataset: Campus},
  year = {2023},
  howpublished = \url{https://huggingface.co/datasets/imvladikon/hebrew_speech_campus},
}
```