異なるアクセントで話す人の声を聞くと 偏見が生じます
Shane C Santos1, Aaliyah Kapadia1, David R Feinberg2
1Department of Psychology, Neuroscience and Behaviour, McMaster University, 1280 Main St West, Hamilton, ON, L8S 4K1, Canada.
Scientific reports
|August 21, 2025
まとめ
話し手のアクセントは 言語の熟知度に関係なく 声の差別に大きく影響します 一人あたりのアクセントを 偏見的に捉えることで アイデンティティの判断に影響します
科学分野:
- 音声 処理
- 認知心理学
- 言語学
背景:
- 声の区別は複雑で 発話とアイデンティティの一致によって 異なるものです
- 言語とアクセントの違いが 音声認識に重大な課題を 引き起こします
- 既存の研究では 声の知覚に対するアクセントの 独立した効果を無視しています
研究 の 目的:
- アクセント,文の内容,スピーカーのアイデンティティが 声の差別にどのように影響するかを調査する.
- アクセントに基づいて 異なるアイデンティティを 同じ人として混同する偏見を定量化します
- アクセントが 言語の熟知度に関係なく 声の識別に影響するかどうかを判断する.
主な方法:
- 声のクローニングを活用して,多様なアイデンティティ,アクセント (イギリス,ポーランド,中国) とフレーズを持つ合成声を生成しました.
- 対照的なアイデンティティ,アクセント,文の影響を体系的にテストするために設計された実験です.
- 異なる条件下で異なる個人を 同じ人として判断する偏見を測定した.
主要な成果:
- 対照的な話者のアイデンティティは 個人を同じだと判断するバイアスを 約62%増加させました
- 対照的なアクセントによって 偏差が約10%増加しました
- アクセントが異なる場合,文のバリエーションはバイアスにより大きな影響を及ぼし,単一のアクセントバイアスを示唆しました.
結論:
- アクセントは 言語の熟知度とは 独立して 重要な役割を果たします
- 一貫したアクセントで話すと 偏見を示します
- これらの発見は 音声バイオメトリクス,法医音声学,人間とコンピュータの相互作用に 影響を及ぼします
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