タイトル & 超要約 子供の声もバッチリ聞き取れるAIの研究だよ!👶✨ データ集めたり、モデルを大きくしたり、色々試して性能UPを目指してるってこと!
ギャル的キラキラポイント✨ ● 子供の声って、大人と違って色々難しいんだって! でもAIで頑張って聞き取れるようにしてるのがスゴくない? ● 色んな方法(データセット構成とか、モデルの大きさとか)を試して、一番良い方法を探ってるのが、まさに努力の結晶って感じ💖 ● 教育アプリとか、おもちゃとか、色んなところで使えるようになるかもって考えると、ワクワクしちゃうよね!
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Despite advancements in ASR, child speech recognition remains challenging due to acoustic variability and limited annotated data. While fine-tuning adult ASR models on child speech is common, comparisons with flat-start training remain underexplored. We compare flat-start training across multiple datasets, SSL representations (WavLM, XEUS), and decoder architectures. Our results show that SSL representations are biased toward adult speech, with flat-start training on child speech mitigating these biases. We also analyze model scaling, finding consistent improvements up to 1B parameters, beyond which performance plateaus. Additionally, age-related ASR and speaker verification analysis highlights the limitations of proprietary models like Whisper, emphasizing the need for open-data models for reliable child speech research. All investigations are conducted using ESPnet, and our publicly available benchmark provides insights into training strategies for robust child speech processing.