---
language:
- pt
license: cc-by-nc-4.0
pretty_name: camoes_SI
size_categories:
- 10K\<n\<100K
tags:
- audio
- speech_recognition
- portuguese
- european_portuguese
- sociolinguistics
task_categories:
- automatic-speech-recognition
---

# camoes_SI

## Dataset Description

The **camoes_SI** dataset is a curated combination of two European
Portuguese sociolinguistic corpora --- **Fala Bracarense** and
**Português Fundamental** --- merged into a unified **test-only**
dataset for evaluating Automatic Speech Recognition (ASR) systems.

All audio is provided as **16 kHz PCM waveforms**, accompanied by
speaker metadata and reference transcripts.

This dataset corresponds to the **Sociolinguistic Interviews (SI)**
category of the **CAMÕES benchmark**, introduced in:

**CAMÕES: A Comprehensive Automatic Speech Recognition Benchmark for European Portuguese**

In the CAMÕES benchmark, the SI category represents:

> **Highly spontaneous conversational speech**, recorded in various
> Portuguese regions and social contexts, often with **poor recording
> conditions** and highly **accented speech** making this the most challening 
> domain in this benchmark.

As mention above, SI is the **most difficult domain** in the benchmark and a
strong indicator of model robustness in real conversational scenarios.

------------------------------------------------------------------------

## Source Components

The dataset here on Hugging Face is the **union of two corpora**, both
referenced in the CAMÕES benchmark:

### **Fala Bracarense**

-   **Duration:** 6.1 hours
-   **Speakers:** 9
-   **Age range:** 15--92
-   **Gender:** 45% male \| 55% female
-   **Location:** Braga, Portugal
-   **Collection period:** 2009--2014

### **Português Fundamental**

-   **Duration:** 4.2 hours
-   **Speakers:** 169
-   **Age range:** 17--69
-   **Gender:** 44% male \| 56% female
-   **Collection period:** 1970s

------------------------------------------------------------------------

## Data Fields

| Column Name  | Type   | Description |
|--------------|--------|-------------|
| `audio`      | Audio  | 16 kHz PCM waveform of the utterance |
| `age`        | string | Speaker-reported age |
| `gender`     | string | Speaker gender |
| `speaker_id` | string | Unique speaker identifier |
| `hypothesis` | string | ASR hypothesis transcript (if available) |
| `reference`  | string | Ground-truth transcript |
| `wrd`        | string | Word count or related metric |
| `wer`        | string | Word Error Rate (if available) |
| `dataset`    | string | Source dataset identifier |
| `ID`         | string | Unique utterance ID |
| `ncount`     | string | Additional metadata field |
| `sex`        | string | Speaker sex / alternative gender field |

------------------------------------------------------------------------

## Example Usage

``` python
from datasets import load_dataset, Audio

# Load full test split
ds = load_dataset("inesc-id/camoes_SI", split="test")

# Filter for FBracarense or PTFundamental or keep both and skip this line
fb = ds.filter(lambda x: x["dataset"] == "FBracarense")
```

------------------------------------------------------------------------

## License

This dataset is released under the **CC BY-NC 4.0** license.\
You may use, modify, and redistribute the dataset for **non-commercial
research purposes**.\
Commercial use is **not permitted**.

------------------------------------------------------------------------

## References

### Fala Bracarense

``` bibtex
@misc{FalaBracarense2009,
  author       = {{Centro de Estudos Humanísticos, Universidade do Minho}},
  title        = {Perfil Sociolinguístico da Fala Bracarense},
  year         = {2009},
  howpublished = {\url{https://sites.google.com/site/projectofalabracarense/}},
  note         = {Accessed: 2025-05-21}
}
```

### Português Fundamental

``` bibtex
@misc{PTFundamental2014,
  author       = {{Centro de Linguística, Universidade de Lisboa}},
  title        = {Português Fundamental},
  year         = {2014},
  howpublished = {\url{https://www.islrn.org/resources/812-337-422-842-3/}},
  note         = {Accessed: 2025-05-21}
}
```

### CAMÕES Benchmark

``` bibtex
@inproceedings{2025CAMOES,
  title={CAMÕES: A Comprehensive Automatic Speech Recognition Benchmark for European Portuguese},
  author={Carvalho, Carlos and Teixeira, Francisco and Botelho, Catarina and Pompili, Anna and Solera-Ureña, Rubén and Paulo, Sérgio and Julião, Mariana and Rolland, Thomas and Mendonça, John and Pereira, Diogo and Trancoso, Isabel and Abad, Alberto},
  booktitle={IEEE Automatic Speech Recognition and Understanding Workshop (ASRU)},
  year={2025}
}
```