Abdul Rehman Jian-Jun Zhang 0001 Xiaosong Yang CUPE: Contextless Universal Phoneme Encoder for Language-Agnostic Speech Processing. 2025 August abs/2508.15316 CoRR https://doi.org/10.48550/arXiv.2508.15316 db/journals/corr/corr2508.html#abs-2508-15316 streams/journals/corr