The scope of O-COCOSDA 2025 covers research and development in speech databases and text corpora, assessment of speech input and output technologies, phonetic and phonological systems for oriental languages, romanization of non-roman characters, segmentation and labeling, speech prosody, speech processing models and systems, and multilingual speech corpora. The conference also welcomes contributions addressing special topics on speech database assessments, speech technology standardization, and other relevant areas in speech communication and resource development.