Based on the research and analysis of the construction method of traditional phonological corpus, combined with the related needs of natural spoken speech recognition and the characteristics of Tibetan natural spoken language, the construction scheme and annotation standard of spoken language corpus suitable for Tibetan speech recognition is designed.A 50-hour Tibetan Lhasa spoken corpus with five layers of annotation including phonemes, semitone, syllables, Tibetan word and sentences is also constructed. T...