---
language:
- ja
task_categories:
- automatic-speech-recognition
license: other
pretty_name: JP-HomophoneBench
tags:
- japanese
- asr
- homophone
- phoneme
- contextual-asr
- context-biasing
- speech-recognition
configs:
- config_name: homophone8
  data_files:
  - split: train
    path: homophone8/train-00000-of-00001.parquet
  - split: validation
    path: homophone8/validation-00000-of-00001.parquet
  - split: test
    path: homophone8/test-00000-of-00001.parquet
- config_name: homophone8-audio
  data_files:
  - split: test
    path: homophone8-audio/test-*
- config_name: homophone8-research
  data_files:
  - split: train
    path: homophone8-research/train-00000-of-00001.parquet
  - split: validation
    path: homophone8-research/validation-00000-of-00001.parquet
  - split: test
    path: homophone8-research/test-00000-of-00001.parquet
dataset_info:
  config_name: homophone8-audio
  features:
  - name: audio_filepath
    dtype: 'null'
  - name: audio_ref
    struct:
    - name: config
      dtype: string
    - name: kind
      dtype: string
    - name: repo_id
      dtype: string
    - name: row_id
      dtype: string
    - name: split
      dtype: string
  - name: candidates
    list: json
  - name: category
    dtype: string
  - name: difficulty
    struct:
    - name: acoustic
      dtype: float64
    - name: context
      dtype: float64
    - name: lexical
      dtype: float64
    - name: phone_distance
      dtype: float64
  - name: group_id
    dtype: string
  - name: id
    dtype: string
  - name: metadata
    dtype: json
  - name: source
    struct:
    - name: audio_redistributed
      dtype: bool
    - name: config
      dtype: string
    - name: dataset
      dtype: string
    - name: license
      dtype: string
    - name: revision
      dtype: string
    - name: source_id
      dtype: string
    - name: split
      dtype: string
    - name: synthetic
      dtype: bool
  - name: split
    dtype: string
  - name: target
    dtype: json
  - name: text
    dtype: string
  - name: benchmark_split
    dtype: string
  - name: audio
    dtype:
      audio:
        sampling_rate: 16000
  - name: audio_origin
    dtype: string
  - name: audio_engine
    dtype: string
  - name: audio_engine_version
    dtype: string
  - name: audio_voice
    dtype: string
  - name: audio_voice_license
    dtype: string
  - name: audio_source_config
    dtype: string
  - name: audio_source_revision
    dtype: string
  - name: audio_sampling_rate
    dtype: int64
  splits:
  - name: test
    num_bytes: 3761077
    num_examples: 71
  download_size: 3748747
  dataset_size: 3761077
---

# JP-HomophoneBench

A deterministic Japanese ASR benchmark index for separating eight error/disambiguation classes:

- `exact_homophone`
- `near_homophone`
- `voicing`
- `long_vowel`
- `geminate`
- `moraic_nasal`
- `pitch_accent`
- `semantic_only`

## Important design rule

This repository is metadata-first. Source audio is **not redistributed by default**. Each row stores source repository/config/split/row identifiers so audio can be rehydrated under the original source license.

`exact_homophone` and `semantic_only` are intentionally separate. A phoneme scorer is not expected to solve `semantic_only` by itself.

HF repository: `saeeew/JP-HomophoneBench`
Most recently published configuration: `homophone8`
Publication license policy: `permissive`

## Available configurations

- `homophone8`
- `homophone8-research`

## Published rows in this run

### Splits

- `train`: 111
- `validation`: 9
- `test`: 11

### Categories

- `exact_homophone`: 10
- `geminate`: 3
- `long_vowel`: 3
- `moraic_nasal`: 3
- `near_homophone`: 7
- `pitch_accent`: 92
- `semantic_only`: 10
- `voicing`: 3

### Upstream sources

- `HaitongSUN/prosodic-abx`: 92
- `JP-HomophoneBench/permissive-phonetic-core`: 19
- `manual-cc0-example`: 20

## Licensing and provenance

The combined benchmark uses `license: other` because rows retain their upstream license. Inspect `source.license` before redistribution or commercial use.

## Loading

```python
from datasets import load_dataset
ds = load_dataset("saeeew/JP-HomophoneBench", "homophone8")
print(ds)
```

## Build summary

```json
{
  "augmentation": "permissive-core8-v0.1",
  "categories": {
    "exact_homophone": 178,
    "geminate": 9,
    "long_vowel": 18,
    "moraic_nasal": 5,
    "near_homophone": 210,
    "pitch_accent": 92,
    "semantic_only": 178,
    "voicing": 17
  },
  "core8_missing": [],
  "licenses": {
    "cc-by-4.0": 92,
    "cc-by-nc-4.0": 576,
    "cc0-1.0": 39
  },
  "records": 707,
  "sha256": {
    "all.jsonl": "897940216f5f1130b0954e3381f0ec37d998575791f2b170e3add3c5b664eeb3",
    "test.jsonl": "a657d1accff04dd7c1c629a4ef1fe8232b11ed2425a962187feee5fff6aebb43",
    "train.jsonl": "93a3fa069fefada5564a2f550a9ce98579fe611da4c6afcb43b5e8e755f5f18d",
    "validation.jsonl": "12e5d99945e844d8be53aea4f2864a912b56bb907458291ed698d25cd60f564c"
  },
  "sources": {
    "HaitongSUN/prosodic-abx": 92,
    "IDEMITSU/hoiku-yougo-stt-ja": 576,
    "JP-HomophoneBench/permissive-phonetic-core": 19,
    "manual-cc0-example": 20
  },
  "splits": {
    "test": 161,
    "train": 475,
    "validation": 71
  }
}
```