| --- |
| license: cc-by-4.0 |
| task_categories: |
| - audio-classification |
| language: |
| - en |
| tags: |
| - audio-quality |
| - mos |
| - ovl |
| - xacle |
| pretty_name: OVL (Overall Audio Quality) MOS -- XACLE |
| dataset_info: |
| - config_name: per_clip |
| features: |
| - name: audio_id |
| dtype: string |
| - name: wave_filename |
| dtype: string |
| - name: source |
| dtype: string |
| - name: split |
| dtype: string |
| - name: mean_score |
| dtype: float32 |
| - name: std_score |
| dtype: float32 |
| - name: median_score |
| dtype: float32 |
| - name: n_ratings |
| dtype: int32 |
| - name: batch |
| dtype: string |
| splits: |
| - name: train |
| num_examples: 100 |
| configs_note: per-clip aggregated MOS |
| - config_name: per_rating |
| features: |
| - name: audio_id |
| dtype: string |
| - name: wave_filename |
| dtype: string |
| - name: source |
| dtype: string |
| - name: split |
| dtype: string |
| - name: score |
| dtype: float32 |
| - name: listener_id |
| dtype: string |
| - name: batch |
| dtype: string |
| splits: |
| - name: train |
| num_examples: 460 |
| configs: |
| - config_name: per_clip |
| data_files: |
| - split: train |
| path: per_clip/train-* |
| - config_name: per_rating |
| data_files: |
| - split: train |
| path: per_rating/train-* |
| --- |
| |
| # OVL (Overall Audio Quality) MOS -- XACLE |
|
|
| Human MOS ratings of **overall audio quality (OVL)** for real **XACLE-train** |
| audio clips, collected on Amazon Mechanical Turk. OVL here is synonymous with |
| **AQ (audio quality)**: annotators rate how natural and clean each clip *sounds* |
| on a 1-5 scale, judging the audio itself -- not what it depicts, and without any |
| text caption. |
|
|
| Each HIT presented 10 XACLE clips plus 1 hidden reference anchor (a known-good or |
| known-bad clip) used only to screen annotators; anchors are **excluded** from this |
| dataset. 4 low-quality assignments flagged on MTurk were rejected and dropped. |
|
|
| ## Configs |
|
|
| | config | rows | one row per | |
| |--------|------|-------------| |
| | `per_clip` | 100 | unique XACLE clip -- aggregated MOS | |
| | `per_rating` | 460 | single (assignment x clip) rating | |
|
|
| ### `per_clip` |
| `audio_id`, `wave_filename` (XACLE-train file), `source` (`xacle`), `split` |
| (`train`), `mean_score` (MOS), `std_score`, `median_score`, `n_ratings`, `batch`. |
| |
| ### `per_rating` |
| `audio_id`, `wave_filename`, `source`, `split`, `score` (1-5), `listener_id` |
| (anonymized worker), `batch`. |
|
|
| Audio is referenced by `wave_filename` (XACLE-train), not embedded. |
|
|
| ## Summary |
|
|
| - **100** unique XACLE-train clips, **460** ratings, **9** workers, |
| ~4.6 ratings/clip. |
| - Mean OVL **3.19** (per-clip MOS mean 3.18). |
| - Inter-annotator agreement: Krippendorff alpha (interval) **0.388**, |
| ICC(1,1) **0.392**, ICC(1,k) **0.748**. |
| - Anchor probe: low anchors mean **2.04**, high anchors mean **4.74**. |
|
|
| `source` is `xacle` for every row; the column exists so RELATE OVL ratings can be |
| appended to this repo later. |
|
|
